Prof Ian Armstead

Prof Ian Armstead

Professor

Contact Details

Research

Genetics and genomics of forage grasses (Lolium and Festuca) spp.

Publications

B chromosomes are associated with redistribution of genetic recombination towards lower-recombination chromosomal regions in perennial ryegrassHarper, J., Phillips, D., Thomas, A., Gasior, D., Evans, C., Powell, W., King, J., King, I., Jenkins, G. & Armstead, I. 2018 In : Journal of Experimental Botany.69, 8
Hydroponic evaluation of growth and nutrient uptake in a Lolium/Festuca introgression seriesHarper, J., Thomas, A., Evans, C., Mathews, R., Allen, D., Humphreys, M. & Armstead, I. 2017 p. 661 p.
Implementation of genomic prediction in Lolium perenne (L.) breeding populationsGrinberg, N., Lovatt, A., Hegarty, M., Macfarlane, A. C., Skot, K., Kelly, R., Blackmore, T., Thorogood, D., King, R. D., Armstead, I., Powell, W. & Skot, L. 2016 In : Frontiers in Plant Science.7, 133
Changes in freezing tolerance and photosystem II acclimation mechanisms within a Lolium perenne x Festuca pratensis substitution seriesGasior, D., Harper, J., Thomas, A., Evans, C., Armstead, I. & Humphreys, M. 2016 The multiple roles of grassland in the European bioeconomy: Proceedings of the 26th General Meeting of the European Grassland Federation. Höglind, M., Bakken, A. K., Hovstad, K. A., Kallioniemi, E., Riley, H., Steinshamnm, H. & Østrem, L. (eds.). Norway: Norwegian Institute of Bioeconomy Research, p. 835-837
A synteny-based draft genome sequence of the forage grass Lolium perenneByrne, S. L., Nagy, I., Pfeifer, M., Armstead, I., Swain, S., Studer, B., Campbell, J., Czaban, A., Hentrup, S., Panitz, F., Bendixen, C., Hedegaard, J., Caccamo, M. & Asp, T. 2015 In : Plant Journal.84, 4, p. 816-82611 p.
An assessment of genetic diversity within a collection of natural Lolium perenne ecotypes from across EuropeGasior, D., Harper, J., Humphreys, M. & Armstead, I. 2015 31st International EUCARPIA Symposium Section Fodder Crops and Amenity Grasses: Breeding in a World of Scarcity. Ghent, Belgium
Genetic Differentiation in Response to Selection for Water-Soluble Carbohydrate Content in Perennial Ryegrass (Lolium perenne L.)Gallagher, J. A., Turner, L. B., Cairns, A. J., Farrell, M. S., Lovatt, J. A., Skøt, K. P., Armstead, I. P., Humphreys, M. O. & Roldan_Ruiz, I. 2015 In : Bioenergy Research.8, 1, p. 77-9014 p.
An Assessment of Phenotypic Diversity Within a Collection of Natural Lolium perenne Ecotypes and Cultivars from Across EuropeGasior, D., Harper, J., Humphreys, M., Lovatt, A., Armstead, I. & Sanderson, R. 2015 Proceedings of the 2015 Meeting of the Section “Forage Crops and Amenity Grasses” of Eucarpia: Breeding in a World of Scarcity. Roldán-Ruiz, I., Baert, J. & Reheul, D. (eds.). Switzerland: Springer Nature, p. 29-33
Flowering TimeBentley, A. R., Jensen, E. F., Mackay, I., Honicka, H., Fladung, M., Hori, K., Yano, M., Mullet, J. E., Armstead, I. P., Hayes, C. M., Thorogood, D., Lovatt, J. A., Morris, R., Pullen, N., Mutasa-Gottgens, E. & Cockram, J. 2013 Genomics and Breeding for Climate-Resilient Crops: Target Traits. Kole, C. (ed.). Springer Nature, Vol. 2, p. 1-66
Exploitation of interspecific diversity for monocot crop improvementKing, J., Armstead, I. P., Harper, J. A., Ramsay, L., Snape, J., Waugh, R., James, C. L., Thomas, A. M., Gasior, D., Kelly, R. O., Roberts, L. A., Gustafson, P. & King, I. 2013 In : Heredity.110, p. 475–483
A DArT marker genetic map of perennial ryegrass (Lolium perenne L.) integrated with detailed comparative mapping information; comparison with existing DArT marker genetic maps of Lolium perenne, L. multiflorum and Festuca pratensisKing, J., Thomas, A., James, C., King, I. & Armstead, I. 2013 In : BMC Genomics.14, p. n/a n/a
Genotyping by RAD sequencing enables mapping of fatty acid composition traits in perennial ryegrass (Lolium perenne (L.))Hegarty, M. J., Yadav, R. S., Lee, M. R., Armstead, I. P., Sanderson, R., Scollan, N. D., Powell, W. & Skøt, L. 2013 In : Plant Biotechnology Journal.11, 5, p. 572–581
Transmission Frequencies of Introgressed Festuca pratensis Chromosome and Chromosome Segments in Lolium perenneArmstead, I. P., Harper, J. A., King, J. & King, I. 2013 In : Crop Science.53, 5, p. 1968-19736 p.
Integration of gene-based markers in a pearl millet genetic map for identification of candidate genes underlying drought tolerance QTLsSehgal, D., Rajaram, V., Armstead, I. P., Vadez, V., Yadav, Y. P., Hash, C. T. & Yadav, R. S. 2012 In : BMC Plant Biology.12, 9, p. 1-1313 p.
The Development of a BAC-fingerprint FPC map for Lolium perenne Swain, S., Thomas, A., Kudrna, D., Huang, L., Byrne, S., Asp, T., King, I., King, J. & Armstead, I. 2012
Lolium perenne ft3 gene for flowering locus T protein, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele A, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele B, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele C, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele D, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele E, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele F, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele G, exons 1-3Armstead, I. P. 2011
Lolium multiflorum ft3 gene for flowering locus T protein, exons 1-3Armstead, I. P. 2011
Lolium temulentum ft3 gene for flowering locus T protein, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele E, isolate VRNA_F1#30, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele E/B, isolate VRNA_F1#39, exons 1-3Armstead, I. P. 2011
Lolium perenne ft3 gene for flowering locus T protein, allele B, isolate VRNA_F1#39, exons 1-3Armstead, I. P. 2011
Progress towards elucidating the mechanisms of self-incompatibility in the grasses: further insights from studies in LoliumKlaas, M., Yang, B., Bosch, M., Thorogood, D., Manzanares, C., Armstead, I. P., Franklin, F. C. H. & Barth, S. 2011 In : Annals of Botany.108, 4, p. 677-6859 p.
Developing a physical map of the Lolium perenne genome based on High-Information Content BAC Fingerprinting and BAC-end sequencingArmstead, I., King, J., Huang, L., Ougham, H., Kudrna, D. & King, I. 2011 p. 321 p.
Alien introgression in the grasses Lolium perenne (perennial ryegrass) and Festuca pratensis (meadow fescue): the development of seven monosomic substitution lines and their molecular and cytological characterizationHarper, J., Armstead, I., Thomas, A., James, C., Gasior, D., Bisaga, M., Roberts, L., King, I. & King, J. 2011 In : Annals of Botany.107, 8, p. 1313-13219 p.
Allelic variation in the perennial ryegrass FLOWERING LOCUS T gene is associated with changes in flowering time across a range of populationsSkøt, L., Sanderson, R., Thomas, A. M., Skøt, K. P., Thorogood, D., Latypova, G. A., Asp, T. & Armstead, I. P. 2011 In : Plant Physiology.155, 2, p. 1013-102210 p.
Festuca pratensis ft3 gene for flowering locus T protein, exons 1-3Armstead, I. P. 2011
EST-derived SSR markers used as anchor loci for the construction of a consensus linkage map in ryegrass (Lolium spp.)Studer, B., Kölliker, R., Muylle, H., Asp, T., Frei, U. C., Roldán-Ruiz, I., Barre, P., Tomaszewski, C., Meally, H., Barth, S., Skøt, L., Armstead, I. P., Dolstra, O. & Lübberstedt, T. 2010 In : BMC Plant Biology.10, 177, 177
Fine mapping of a major terminal drought tolerance QTL in pearl milletSehgal, D., Skot, L., Armstead, I. P., Hash, C. T. & Yadav, R. S. 2010
Bioinformatics in the orphan cropsArmstead, I. P., Huang, L. S., Ravagnani, A., Robson, P. R. & Ougham, H. J. 2009 In : Briefings in Bioinformatics.10, 6, p. 645-6539 p.
Identification of genes expressed during the self-incompatibility response in perennial ryegrass (Lolium perenne L.)Yang, B., Thorogood, D., Armstead, I. P., Franklin, F. C. H. & Barth, S. 2009 In : Plant Molecular Biology.70, 6, p. 709-72315 p.
Fragments of the key flowering gene GIGANTEA are associated with helitron-type sequences in the Pooideae grass Lolium perenneLangdon, T., Thomas, A., Huang, L., Farrar, K., King, J. & Armstead, I. 2009 In : BMC Plant Biology.9, 70
Manipulation of recombination in the grassesWilliams, G., King, I. P., King, J., Jenkins, G., Harper, J. & Armstead, I. P. 2009 Monogram Network Workshop.
GIGANTEA (GI) gene and helitron-associated and non-associated GI pseudogene sequences from Lolium perenne and Festuca pratensisArmstead, I. P. & Thomas, A. 2009
Identification of SNP markers for molecular breeding in Lolium perenne and other energy grassesFarrar, K., Thomas, A. M., Gallagher, J. A., Turner, L. B., Armstead, I. P., Humphreys, M. W. & Donnison, I. S. 2009 p. W269
Can the weed grass species Lolium temulentum be a useful tool in allowing us to investigate basic fundamental traits within the grasses?Harper, J. A., Gasior, D., Roberts, L. A., Thomas, A. M., James, C. L., King, J., King, I. P. & Armstead, I. P. 2009 p. p17
Progress in introgression mapping in the pooideaeKing, J., Armstead, I. P., Harper, J. A., James, C. L., Roberts, L. A., Gasior, D., Kelly, R. O., Huang, L. S., Thomas, A. M., Skot, K. & King, I. P. 2009 p. W274
Manipulation of recombination in the grassesWilliams, J. G., King, I. P., King, J., Jenkins, G., Harper, J. A. & Armstead, I. P. 2009 p. 131 p.
Using genomics and mapping approaches to identify genes underlying a major QTL of drought tolerance in pearl milletYadav, R. S., Sehgal, D., Armstead, I. P., Nepolean, T., Vadez, V. & Hash, C. T. 2009
Understanding the genetic basis of flowering and fertility in the ryegrasses (Lolium spp.)Armstead, I. P., Barth, S., Yang, B., Thorogood, D., Humphreys, M. O., King, I. P., Marshall, A. H., Turner, L. B., Skøt, L., Yamada, T. (ed.) & Spangenberg, G. (ed.) 2009 Molecular Breeding of Forage and Turf. Yamada, T. & Spangenberg, G. (eds.). Springer Nature, Vol. 12, p. 185-1928 p.
The control of chlorophyll catabolism and the status of yellowing as a biomarker of leaf senescenceOugham, H. J., Hortensteiner, S., Armstead, I. P., Donnison, I. S., King, I. P., Thomas, H. & Mur, L. A. J. 2008 In : Plant Biology.10, S1, p. 4-1411 p.
Comparative analyses reveal the major fraction of functionally annotated gene models in monocots are located in recombination poor/very poor regions of the genomeKing, J., Armstead, I. P., Donnison, I., Roberts, L., Harper, J. A., Skøt, K., Elborough, K. & King, I. P. 2008
Does fructan have a functional role in physiological traits? Investigation by quantative trait locus mappingTurner, L. B., Cairns, A. J., Armstead, I. P., Thomas, H., Humphreys, M. W. & Humphreys, M. O. 2008 In : New Phytologist.179, 3, p. 765-77511 p.
How far are we from unravelling self-incompatibility in grasses?Yang, B., Thorogood, D., Armstead, I. P. & Barth, S. 2008 In : New Phytologist.178, 4, p. 740-75314 p.
Identifying genetic components controlling fertility in the outcrossing grass species perennial ryegrass (Lolium perenne) by quantitative trait loci analysis and comparative geneticsArmstead, I. P., Turner, L. B., Marshall, A. H., Humphreys, M. O., King, I. P. & Thorogood, D. 2008 In : New Phytologist.178, 3, p. 559-57113 p.
Development of a genomic microsatellite library in perennial ryegrass (Lolium perenne) and its use in trait mappingKing, J., Thorogood, D., Edwards, K. J., Armstead, I. P., Roberts, L. A., Skøt, K. P., Hanley, Z. & King, I. P. 2008 In : Annals of Botany.101, 6, p. 845-8539 p.
Comparative analysis reveal the major fraction of functionally annotated gene models in monocots are located in recombination poor/very poor regions of the genomeKing, J., Armstead, I. P., Donnison, I. S., Roberts, L. A., Harper, J. A., Skot, K. P., Elborough, K. & King, I. P. 2008 p. p34
Association and introgression mapping of quantitative traits in Lolium perenne: flowering time, forage quality and abiotic stress toleranceSkot, L., Thorogood, D., Armstead, I. P., Humphreys, J., Sanderson, R., Thomas, I. D., Gallagher, J. A., Turner, L. B., Humphreys, M. W. & Humphreys, M. O. 2008 p. W169
Towards resolving vegetative growth and seed production conflicts in perennial ryegrass used for turf and forageThorogood, D. & Armstead, I. P. 2008 p. p16
Identification and characterisation of genes involved in self-incompatibility (SI) in Lolium perenneYang, B., Thorogood, D., Armstead, I. P., Franklin, F. C. H., Barth, S. & Lubberstedt, T. (ed.) 2008
Identification of differentially expressed genes during self-incompatibility (SI) response in Lolium perenneYang, B., Thorogood, D., Armstead, I. P., Franklin, F. C. H. & Barth, S. 2008
Changes in SSR allele frequencies during phenotypic selection for water-soluble carbohydrate (WSC) in an experimental population of perennial ryegrassArmstead, I. P., Turner, L. B., Humphreys, M. O., Farrell, M. S., Cairns, A. J., Skøt, K. P., Farrar, K., Donnison, I. S. & Lubberstedt, T. (ed.) 2008 27th EUCARPIA Symposium on Improvement of Fodder Crops and Amenity Grasses.p. 19-235 p.
Association of candidate genes with flowering time and water-soluble carbohydrate content in Lolium perenne (L.)Skøt, L., Humphreys, J., Humphreys, M. O., Thorogood, D., Gallagher, J. A., Sanderson, R., Armstead, I. P. & Thomas, I. D. 2007 In : Genetics.177, 1, p. 535-54713 p.
Rice pseudomolecule-anchored cross-species DNA sequence alignments indicate regional genomic variation in expressed sequence conservationArmstead, I. P., Huang, L. S., King, J., Ougham, H. J., Thomas, H. & King, I. P. 2007 In : BMC Genomics.8, 283, 16
Comparative Analyses Between Lolium/Festuca Introgression Lines and Rice Reveal the Major Fraction of Functionally Annotated Gene Models Is Located in Recombination-Poor/Very Recombination-Poor Regions of the GenomeArmstead, I. P., King, J., King, I. P., Harper, J. A., Roberts, L. A., Donnison, I. S. & Skøt, K. P. 2007 In : Genetics.177, 1, p. 597-60610 p.
The genetic control of senescence revealed by mapping quantitative trait lociDonnison, I. S., Thomas, H., Armstead, I. P., Ougham, H. J., Howarth, C. J. & Galyuon, I. K. A. 2007 Annual Plant Reviews: Senescence Processes in Plants. Gan, S. (ed.). Wiley, Vol. 26, p. 171-20131 p.
Cross-species identification of Mendel's/locusArmstead, I. P., Donnison, I. S., Aubry, S., Harper, J. A., Hörtensteiner, S., James, C. L., Mani, J., Moffet, M., Ougham, H. J., Roberts, L. A., Thomas, A. M., Weeden, N., Thomas, S. & King, I. P. 2007 In : Science.315, 5808, p. 73
Strategies to combine improved reproductive and agronomic traits in forage plant breeding programmesMarshall, A., Abberton, M. T., Thorogood, D., Armstead, I. & Michaelson-Yeates, T. P. T. 2007 p. 22-275 p.
Identification of SNps for molecular breeding in Lolium perenneFarrar, K., Thomas, A. M., Gallagher, J. A., Armstead, I., Turner, L., Humphreys, M. O. & Donnison, I. 2007
Staygreen in the grasses: The Multinational Coordinated Arabidopsis Thanliana Functional Genomics ProjectArmstead, I. P., King, I. P. & Friesner, J. 2007 Unknown Publisher. 2 p. (Annual Report 2007)
From crop to model to crop: identifying the genetic basis of the staygreen mutation in the Lolium/Festuca forage and amenity grassesArmstead, I. P., Donnison, I. S., Aubry, S., Harper, J. A., Hortensteiner, S., James, C. L., Mani, J., Moffet, M., Ougham, H. J., Roberts, L. A., Thomas, A. M., Weeden, N., Thomas, S. & King, I. P. 2006 In : New Phytologist.172, 4, p. 592-5976 p.
Alignment of the genomes of brachypodium distachyon and temperate cereals and grasses using bacterial artificial chromosome landing with fluorescence in situ hybridizationDonnison, I. S., King, I. P., Wolny, E., Jenkins, G. M., Marasek, A., Armstead, I. P., Hasterok, R., Idziak, D., Draper, J. H. & Thomas, A. M. 2006 In : Genetics.173, 1, p. 349-36214 p.
Introgression of crown rust (Puccinia coronata) resistance from meadow fescue (Festuca pratensis) into Italian ryegrass (Lolium multiflorum): Genetic mapping and identification of associated molecular markersArmstead, I. P., Harper, J. A., Turner, L. B., Skøt, L., King, I. P., Humphreys, M. O., Morgan, W. G., Thomas, H. M. & Roderick, H. W. 2006 In : Plant Pathology.55, 1, p. 62-676 p.
Dissecting the regulation of fructan metabolism in perennial ryegrass (Lolium perenne) with quantitative trait locus mappingTurner, L. B., Cairns, A. J., Armstead, I. P., Ashton, J., Skøt, K. P., Whittaker, D. & Humphreys, M. O. 2006 In : New Phytologist.169, 1, p. 45-5814 p.
New developments in genotyping and phenotyping for breeding improved sustainability in temperate forage grassesDonnison, I. S., Thain, S. C., Skøt, L., Taylor, J., Turner, L. B., Armstead, I. P., Roderick, H. W., King, I. P., Humphreys, M. O. & Humphreys, M. W. 2006 p. 1091-10966 p.
Identification of SNPs for molecular breeding in Lolium perenneFarrar, K., Thomas, A., Armstead, I., Turner, L., Humphreys, M. O. & Donnison, I. S. 2006 p. P.67
An association mapping approach to identify flowering time genes in natural populations of Lolium perenne (L.)Skøt, L., Humphreys, M. O., Armstead, I. P., Heywood, S., Skøt, K. P., Sanderson, R., Thomas, I. D., Chorlton, K. H. & Sackville Hamilton, N. R. 2005 In : Molecular Breeding.15, 3, p. 233-24513 p.
Molecular tagging of a senescence gene by introgression mapping of a stay-green mutation from Festuca pratensisThomas, A. M., Thomas, H., Armstead, I. P., King, I. P., Harper, J. A., Moore, B. J., Huang, L. S., Fentem, P. A., Ougham, H. J., Jones, R. N., Jones, T. A. H., Roberts, L. A., King, J. & Donnison, I. S. 2005 In : New Phytologist.165, 3, p. 801-8066 p.
Identification of perennial ryegrass (Lolium perenne (L.)) and meadow fescue (Festuca pratensis (Huds.)) candidate orthologous sequences to the rice Hd1(Se1) and barley HvCO1 CONSTANS-like genes through comparative mapping and microsyntenyArmstead, I. P., Skøt, L., Donnison, I. S., Skøt, K. P., King, I. P., Turner, L. B. & Humphreys, M. O. 2005 In : New Phytologist.p. 239-2479 p.
Construction of a Festuca pratensis BAC library for map-based cloning in IFestulolium substitution linesDonnison, I. S., O'Sullivan, D. M., Thomas, A., Canter, P., Moore, B., Armstead, I., Thomas, H., Edwards, K. J. & King, I. P. 2005 In : Theoretical and Applied Genetics.110, 5, p. 846-8516 p.
Introgression-mapping of genes for drought resistance transferred from Festuca arundinacea var. glaucescens into Lolium multiflorumHumphreys, J., Harper, J. A., Armstead, I. P. & Humphreys, M. W. 2005 In : Theoretical and Applied Genetics.110, 3, p. 579-5879 p.
The identification of genetic synteny between Lolium perenne chromosome 7 and rice chromosome 6 genomic regions that have major effects on heading-dateTurner, L. B., King, I. P., Skøt, L., Donnison, I. S., Humphreys, M. O., Armstead, I. P. & Humphreys, M. O. (ed.) 2005 p. 978-9013 p.
Mapping water-soluble carbohydrate content in perennial ryegrassGallagher, J., Humphreys, M. O., Cairns, A. J., Turner, L. B. & Armstead, I. P. 2005 Molecular Breeding for the Genetic Improvement of Forage Crops and Turf. Proceedings of the 4th International Symposium on the Molecular Breeding of Forage and Turf. XXth International Grassland Congress. Humphreys, M. O. (ed.). Wageningen Academic Publishers
Development of a breeders' toolkit for drought resistance in a Lolium/Festuca hybridHumphreys, J., Armstead, I. P., Humphreys, M. W., O'Mara, F. P. (ed.), Wilkins, R. J. (ed.), 't Mannetje, L. (ed.), Lovett, D. K. (ed.), Rogers, P. A. M. (ed.) & Boland, T. M. (ed.) 2005
Introgression mapping in the grassesKing, I. P., King, J., Armstead, I. P., Harper, J. A., Roberts, L. A., Thomas, H., Ougham, H. J., Jones, R. N., Thomas, A. M., Moore, B. J. & Humphreys, M. O. (ed.) 2005 p. 31-4111 p.
Exploiting the Lolium/Festuca introgression systemKing, J., Armstead, I. P., Roberts, L. A., Harper, J. A., Donnison, I. S. & King, I. P. 2005
Identification and mode of action of self-compatibility loci in Lolium perenne LThorogood, D., Armstead, I. P., Turner, L. B., Humphreys, M. O. & Hayward, M. D. 2004 In : Heredity.94, p. 356-3638 p.
Synteny between a major heading-date QTL in perennial ryegrass (Lolium perenne L.) and the Hd3 heading-date locus in riceArmstead, I. P., Turner, L. B., Farrell, M. S., Skøt, L., Gomez, P., Montoya, T., Donnison, I. S., King, I. P. & Humphreys, M. O. 2004 In : Theoretical and Applied Genetics.108, 5, p. 822-8287 p.
The application of genecology to the discovery of associations between phenotype and molecular markers in natural populations of perennial ryegrassThomas, I. D., Skøt, L., Sanderson, R., Chorlton, K. H., Armstead, I. P., Humphreys, M. O., Heywood, S. & Sackville Hamilton, N. R. 2004 p. 10-145 p.
Genetic variation in natural populations of perennial ryegrass in relation to flowering time and soluble carbohydratesSanderson, R., Thomas, I. D., Skøt, K. P., Skøt, L., Gallagher, J., Heywood, S., Armstead, I. P., Humphreys, M. O., Vollmann, J. (ed.), Grausgruber, H. (ed.) & Ruckenbauer, P. (ed.) 2004 Proceedings of the 17th Eucarpia General Congress, Tulln, Austria, 6-11 September 2004.p. 6-116 p.
Identification of molecular markers for crown rust (Puccinia coronata) resistance in a Lolium/Festuca introgression population using syntenic relationships with riceArmstead, I., Roderick, H. W., Harper, J. A., Thomas, H. M., King, I. P. & Humphreys, M. O. 2004
Proteolysis and cell death in clover leaves is induced by grazingKingston-Smith, A. H., Bollard, A. L., Armstead, I. P., Thomas, B. J. & Theodorou, M. K. 2003 In : Protoplasma.220, 3-4, p. 119-12911 p.
Marker-assisted selection for herbage yield and quality in an advanced breeding population of perennial ryegrassDhanoa, M. S., Davies, R. W., Wilkins, P. W., Deakin, C. & Armstead, I. P. 2003 p. 22-265 p.
Selecting for increased starch content in the vegetative tissues of perennial ryegrassTurner, L. B., Armstead, I. P., Cairns, A. J. & Humphreys, M. O. 2003 p. 322-3254 p.
Association mapping of molecular markers for flowering time using natural populations of Lolium perenneSkøt, L., Armstead, I. P., Chorlton, K. H., Mizen, S., Dhanoa, M. S., Thomas, I. D., Sackville Hamilton, N. R. & Humphreys, M. O. 2003 Proceedings of the 7th British Grassland Society (BGS) Research Conference, Aberystwyth, 1-3 September 2003.p. 75-762 p.
The use of genetic markers in grass breedingHumphreys, M. O., Turner, L. B., Skot, L., Humphreys, M. W., King, I. P., Armstead, I. P. & Wilkins, P. W. 2003 Proceedings 25th EUCARPIA Fodder Crops and Amenity Grasses Section Meeting. Switzerland, p. 112-119 (Czech Journal of Genetics and Plant Breeding; vol. 39)
Isolate specific trait loci for resistance to crown rust in perennial ryegrassRoderick, H. W., Humphreys, M. O., Turner, L., Armstead, I. & Thorogood, D. 2003 Proceedings International Symposium on Grass Breeding: 24th EUCARPIA fodder Crops and Amenity Grasses. Posselt, U. K. & Greef, J. M. (eds.). Vol. 59, p. 244-2474 p. (Vortrage fur Pflanzenzuchtug)
A Lolium perenne framework map based on microsatellite marker loci - joint commercialization by IGER, UK and ViaLactia, NZWinz, R., Wilcox, P. L., Echt, C. E., Armstead, I., Turner, L. & Humphreys, M. O. 2003
QTL mapping in Lolium perenneHumphreys, M. O., Turner, L. & Armstead, I. 2003 p. W207
Selecting for increased starch content in the vegetative tissues of Lolium perenneTurner, L. B., Armstead, I. P., Cairns, A. J., Humphreys, M. O. & Pollock, C. 2002
An enhanced molecular marker based genetic map of perennial ryegrass (Lolium perenne) reveals comparative relationships with other Poaceae genomesJones, E. S., Mahoney, N. L., Hayward, M. D., Armstead, I. P., Jones, J. G., Humphreys, M. O., King, I. P., Kishida, T., Yamada, T., Balfourier, F., Charmet, G. & Forster, J. W. 2002 In : Genome.45, 2, p. 282-29514 p.
Physical and genetic mapping in the grasses Lolium perenne and Festuca pratensis.King, J., Armstead, I. P., Donnison, I. S., Thomas, H. M., Jones, R. N., Kearsey, M. J., Roberts, L. A., Thomas, A., Morgan, W. G. & King, I. P. 2002 In : Genetics.161, p. 315-32410 p.
Genotyping and mapping the self-incompatibility loci of Lolium perenne L.Armstead, I. P., Thorogood, D., Kaiser, W. J. & Jones, J. G. 2002 Proceedings International Symposium on Grass Breeding. 24th EUCARPIA Fodder Crops and Amenity Grasses Section, FAL, Braunschweig, Germany, 22-25 September 2002.p. 22-254 p.
Developing a chromosome substitution series in Lolium/FestucaHarper, J. A., Armstead, I., King, I. P., Roberts, L., Schledde, T., Wagner, N. & Thomas, H. 2002
QTL identification and marker assisted selection for feeding value in ryegrassHumphreys, M. O., Turner, L. & Armstead, I. 2002
Comparison and integration of genetic maps generated from F2 and BC1-type mapping populations in perennial ryegrass (Lolium perenne L.)Armstead, I. P., Humphreys, M. O., Cairns, A. J., King, I. P. & Turner, L. B. 2002 In : Plant Breeding.121, 6, p. 501-507
Self-incompatibility in ryegrass 12. Genotyping and mapping the S and Z loci of Lolium perenne L.Thorogood, D., Kaiser, W. J., Jones, J. G. & Armstead, I. P. 2002 In : Heredity.88, p. 385-3906 p.
A demonstration of a 1:1 correspondence between chiasma frequency and recombination using a Lolium perenne/Festuca pratensis substitutionKing, J., Roberts, L. A., Kearsey, M. J., Thomas, H. M., King, I. P., Jones, R. N., Huang, L. S-F., Armstead, I. P., Morgan, W. G. & King, I. P. 2002 In : Genetics.161, 1, p. 307-3148 p.
The floral transition in model and forage grassesDonnison, I. S., Cisneros, P., Montoya, T., Armstead, I. P., Thomas, B. J., Jones, R. N. & Morris, P. 2002 In : Journal of Experimental Botany.33, p. 42-487 p.
Antifreeze protein in Festuca pratensisHumphreys, J., Canter, P., Donnison, I., Thomas, H. M., Jones, R. N., Armstead, I. & Humphreys, M. W. 2002
Introgression mapping - the route to designer breeding in grassesThomas, H., Morgan, W. G., Humphreys, M. W., Harper, J. A., Armstead, I., Moore, B. J., King, J., Roberts, L., James, A. R., Humphreys, J., Hawkins, S. L. & King, I. P. 2001 Proceedings of the XVIth EUCARPIA Congress. Edinburgh, Scotland, p. 139-145
Genetic and physical analysis of a single Festuca pratensis chromosome segment substitution in Lolium perenneArmstead, I. P., King, I. P., Morgan, W. G., Forster, J. W., Jones, R. N., Bollard, A. L., Thomas, H. M., Hayward, M. D. & Harper, J. A. 2001 In : Chromosoma.110, 1, p. 52-576 p.
QTL analysis of crown rust resistance in perennial ryegrass - implications for breedingPaget, M. F., Armstead, I. P., Humphreys, M. O., Thorogood, D., Turner, L. B. & Roderick, H. W. 2001 In : International Turfgrass Society Research Journal.9, p. 218-2236 p.
Approaches for associating molecular polymorphisms with phenotypic traits based on linkage disequilibrium in natural populations of Lolium perenneHumphreys, J., Skøt, L., Humphreys, M. O., Thomas, I. D., Gallagher, J., Armstead, I. P. & Humphreys, M. O. (ed.) 2001 Molecular Breeding for the Genetic Improvement of Forage Crops and Turf. Humphreys, M. O. (ed.). Wageningen Academic Publishers, p. 978-9013 p.
A physiological and biochemical analysis of the genetic basis of soluble carbohydrate storage in temperate grassesCairns, A. J., Pollock, C., Humphreys, M. O., Armstead, I. P. & Turner, L. B. 2001 Abstracts Society for Experimental Biology Annual Meeting.p. 2-65 p.
Introgression mapping reveals a 1:1 correspondence between chiasma frequency and genetic distanceKing, J., Thomas, H. M., Armstead, I., Jones, R. N., Kearsey, M. J., Roberts, L. A., Morgan, W. G. & King, I. P. 2001 p. 1341 p.
Species relationships, introgression and physical mapping in Lolium perenne x Festuca pratensis hybridsKing, I., Morgan, W. G., Armstead, I., Jones, T. A. H., Jones, R. N., Harper, J., Roberts, L., Taylor, S. & Thomas, H. 2000 Chromosomes Today: Proceedings 13th International Chromosome Conference. Olmo, E. & Redi, C. A. (eds.). Springer Nature, Vol. 13, p. 277-286
Genetic analysis of adaptation differences between highland and lowland tropical maize using molecular markersJiang, C., Edmeades, G. O., Armstead, I., Lafitte, H. R., Hayward, M. D. & Hoisington, D. 1999 In : Theoretical and Applied Genetics.99, 7-8, p. 1106-1119
Chromosome pairing in Lolium perenne × L. temulentum diploid hybrids: genetic and cytogenetic evaluationArmstead, I., Bollard, A., King, I. P., Forster, J. W., Hayward, M. D., Evans, G. M. & Thomas, H. M. 1999 In : Heredity.83, 3, p. 298-303
Introgression mapping in the grasses. I. Introgression of Festuca pratensis chromosomes and chromosome segments into Lolium perenneKing, I. P., Morgan, W. G., Armstead, I. P., Harper, J. A., Hayward, M. D., Bollard, A., Nash, J. V., Forster, J. W. & Thomas, H. M. 1998 In : Heredity.81, 4, p. 462-467
A genetic map of the apospory-region in Brachiaria hybrids: identification of two markers closely associated with the traitPessino, S. C., Evans, C., Ortiz, J. P. A., Armstead, I., do Valle, C. B. & Hayward, M. D. 1998 In : Hereditas.128, p. 153-1586 p.
Non-radioactive mRNA fingerprinting to visualise gene expression in mature ovaries of Brachiaria hybrids derived from B. brizantha, an apomictic tropical forageLeblanc, O., Armstead, I., Pessino, S., Ortiz, J. P. A., Evans, C., Do Valle, C. & Hayward, M. D. 1997 In : Plant Science.126, 1, p. 49-58
New grass genes for old - accessing the grass genome for novel variabilityHayward, M. D., Armstead, I. P., Evans, C., Forster, J. W., Humphreys, M. O., Jones, J. G., Leblanc, O., McAdam, N., Ortiz, J. P. & Pessino, S. 1997 Seeds of Progress, British Grassland Society Occasional Symposium No 31: Proceedings of the BGS/BSPB/NIAB/SAC Conference. Wedell, J. R. (ed.). British Grassland Society
Theoretical potential of biotechniques in crop improvementHayward, M. D., Armstead, I. & Morris, P. 1996 The Biology, Agronomy and Improvement of Brachiaria, CIAT (Centro Internacional de Agricultura Tropical), Columbia. Miles, B., Maass, B. L. & Do Valle, C. B. (eds.). p. 178-195
The in vitro uptake and metabolism of peptides and amino acids by five species of rumen bacteriaLing, J. & Armstead, I. 1995 In : Journal of Applied Microbiology.78, 2, p. 116-124
Variations in the uptake and metabolism of peptides and amino acids by mixed ruminal bacteria in vitroArmstead, I. & Ling, J. 1993 In : Applied and Environmental Microbiology.59, 10, p. 3360-33667 p.
Production and purification of mixed 14C-labelled peptides derived from plant biomassLing, J. R., Bronwen Cooper, P., Parker, S. J. & Armstead, I. P. 1992 In : Journal of Labelled Compounds and Radiopharmaceuticals.31, 5, p. 417-426
Chromatographic separation of mixed peptides from amino acids in biological digests with volatile buffersArmstead, I. & Ling, J. 1991 In : Journal of Chromatography A.586, 2, p. 259-263