Photograph of Dr Catherine Howarth.Dr Catherine Howarth

Principal Investigator
PhD

Contact

Email: cnh@aber.ac.uk
Office: Gogerddan
Phone: 01970 823107

Research

Using a combination of DNA markers and trait analysis to elucidate the genetic and physiological basis of agronomically important traits and their introgression to cultivated cereals. Aims include genetic improvement of oats and pearl millet by marker assisted selection leading to improved sustainable production, disease resistance, stress tolerance and end use quality.

Publications

2016

Chaffin, A.S., Huang, Y., Smith, S., Bekele, W.A., Babiker, E., Gnanesh, B.N., Foresman, B.J., Blanchard, S.G., Jay, J.J., Reid, R.W., Wight, C.P., Chao, S., Oliver, R.E., Islamovic, E., Kolb, F.L., Mccartney, C., Mitchell Fetch, J.W., Beattie, A.D., Bjørnstad, Å., Bonman, J.M., Langdon, T., Howarth, C., Brouwer, C.R., Jellen, E.N., Esvelt Klos, K., Poland, J.A., Hsieh, T., Brown, R., Jackson, E.W., Schlueter, J.A., Tinker, N.A. 2016. A Consensus Map in Cultivated Hexaploid Oat Reveals Conserved Grass Synteny with Substantial Subgenome Rearrangement. The Plant Genome 9 (2) 0102 10.3835/plantgenome2015.10.0102

Galyuon, I.K.A., Howarth, C. 2016. (In press) Genetic diversity of stay-green sorghums and their derivatives revealed by microsatellites. African Journal of Biotechology

Esvelt Klos, K., Huang, Y., Bekele, W.A., Obert, D.E., Babiker, E., Beattie, A.D., Bjørnstad, Å., Bonman, J.M., Carson, M.L., Chao, S., Gnanesh, B.N., Griffiths, I., Harrison, S.A., Howarth, C.J., Hu, G., Ibrahim, A., Islamovic, E., Jackson, E.W., Jannink, J., Kolb, F.L., Mcmullen, M.S., Mitchell Fetch, J., Murphy, J.P., Ohm, H.W., Rines, H.W., Rossnagel, B.G., Schlueter, J.A., Sorrells, M.E., Wight, C.P., Yan, W., Tinker, N.A. 2016. Population Genomics Related to Adaptation in Elite Oat Germplasm. The Plant Genome 0103 10.3835/plantgenome2015.10.0103

2015

Montilla-Bascón, G., Rispail, N., Sánchez-Martín, J., Rubiales, D., Mur, L.A..J., Langdon, T., Howarth, C.J., Prats, E. 2015. Genome-wide association study for crown rust (Puccinia coronata f. sp. avenae) and powdery mildew (Blumeria graminis f. sp. avenae) resistance in an oat (Avena sativa) collection of commercial varieties and landraces. Frontiers in Plant Science 6 103 10.3389/fpls.2015.00103

2014

Boyle, R.D., Corke, F., Howarth, C.J. 2014. Image based estimation of oat panicle development using local patterns. Functional Plant Biology 42 (5) pp. 433-443. 10.1071/FP14056 Other

2013

Marshall, A.H., Cowan, A.A., Edwards, S.., Griffiths, I.M., Howarth, C.J., Langdon, T., White, E. 2013. Crops that feed the world 9. Oats- a cereal crop for human and livestock feed with industrial applications. Food Security 5 (1) pp. 13-33. 10.1007/s12571-012-0232-x

Yadav, R.S., Sehgal, D., Howarth, C.J., Skøt, L., Srivastava, R.K., Vadez, V., Kholova, J., Hash, C.T., Yadav, R., Yadav, N., Singh, R., Taunk, J., Sharma, P. 2013. Developing and Using Genetic and Genomic Resources in Pearl Millet for Enhanced Traits Dissection and Breeding. Plant and Animal Genome XXI, San Diego, California, United States of America, 12/01/2013 - 16/01/2013. Other

Montilla-Bascón, G., Sánchez-Martín, J., Rispail, N., Rubiales, D., Mur, L., Langdon, T., Griffiths, I., Howarth, C., Prats, E. 2013. Genetic Diversity and Population Structure Among Oat Cultivars and Landraces. Plant Molecular Biology Reporter 31 (6) pp. 1305-1314. 10.1007/s11105-013-0598-8

Oliver, R.E., Tinker, N.A., Lazo, G.R., Chao, S., Jellen, E.N., Carson, M.L., Rines, H.W., Obert, D.E., Lutz, J.D., Shackelford, I., Korol, A.B., Wight, C.P., Gardner, K.M., Hattori, J., Beattie, A.D., Bjørnstad, Å., Bonman, J.M., Jannink, J., Sorrells, M.E., Brown-Guedira, G.L., Mitchell Fetch, J.W., Harrison, S.A., Howarth, C.J., Ibrahim, A., Kolb, F.L., Mcmullen, M.S., Murphy, J.P., Ohm, H.W., Rossnagel, B.G., Yan, W., Miclaus, K.J., Hiller, J., Maughan, P.J., Redman Hulse, R.R., Anderson, J.M., Islamovic, E., Jackson, E.W., 2013. SNP Discovery and Chromosome Anchoring Provide the First Physically-Anchored Hexaploid Oat Map and Reveal Synteny with Model Species. PLoS One 8 (3) e58068 10.1371/journal.pone.0058068

Yadav, R.S., Howarth, C.J., Hash, C.T., Witcombe, J.R., Khairwal, I.S. 2013. Successful Marker-Assisted Selectionfor Disease Resistance and drought Tolerance in Pearl Millet in India. In J. Ruane, J. Dargie, C. Mba, P. Boettcher, H. Makkar, D. Bartley, A. Sonnino (eds), Biotechnologies at Work for Smallholders: Case Studies from Developing Countries in Crops, Livestock and Fish. Food and Agriculture Organization, Rome pp. 18-26.

2012

Doonan, J., Howarth, C., Camargo-Rodriguez, A., Allison, G., Swain, G., Gay, A., Draper, J. 2012. EPPN: High throughput plant phenotyping facilities at Aberystwyth. EPPN Workshop, Warsaw, Poland, 11/05/2012 - 12/05/2012.

Singh, R., Sehgal, D., Yadav, R.C., Howarth, C., Srivastava, R.K., Steele, K., Yadav, N.R., Vadez, V., Hash, C., Yadav, R. 2012. Exploring synteny of candidate genes underpinning a major pearl millet drought tolerance QTL across sorghum, rice and the perennial ryegrass (Lolium perenne L.). UK Plant Science Conference, Norwich, United Kingdom of Great Britain and Northern Ireland, 18/04/2012 - 19/04/2012.

Howarth, C.J. 2012. Genetic analysis of β-glucan content in diploid and hexaploid oat. 9th International Oat Conference. 9th International Oat Conference, Beijing, China, 18/06/2012 - 23/06/2012.

Howarth, C.J., Pearson, K., Cowan, A.A., Griffiths, I.M. 2012. QTL associated with powdery mildew resistance in Avena sativa. Ninth International Oat Conference.

Yadav, R., Sehgal, D., Srivastava, R.K., Sharma, P.C., Howarth, C., Hash, C. 2012. Using genetic and genomic resources in breeding improved pearl millet cultivars that are resistant to biotic and abiotic stresses and have improved nutritional quality. Crop Genomics and Crop Improvement Conference, Norwich, United Kingdom of Great Britain and Northern Ireland, 05/12/2012 - 06/12/2012.

2011

Howarth, C.J., Gay, A.P., Draper, J., Powell, W. 2011. Development of high throughput plant phenotyping facilities at Aberystwyth. Phenomics Workshop. Plant and Animal Genome XIX Conference , San Diego, United States of America, 09/01/2011 - 13/01/2011.

Marshall, A.H., Cowan, A.A., Howarth, C.J., Langdon, T. 2011. Harnessing new technologies for sustainable oat production and utilisation. HGCA Research and Development Annual Project Report 2011, RD-2008-3566 Home-Grown Cereals Authority Other

2010

Yadav, R.S., Sehgal, D., Ramu, P., Kholova, J., Kakkera, A., Sharma, P.C., Vadez, V., Howarth, C.J., Hash, C.T. 2010. Genetics and genomics resources for enhancing conventional breeding in pearl millet. 2nd National Workshop on Marker-Assisted Selection for Crop Improvement, Patancheru, India, 27/10/2010 - 29/10/2010.

Griffiths, I., Jenkins, G., Cowan, A., Howarth, C. 2010. Nitrogen use efficiency in winter oats (Avena sativa). Monogram Network Workshop, Kings Centre, Norwich, Norwich, United Kingdom of Great Britain and Northern Ireland, 01/03/2010 - 04/03/2010.

2009

Mohan, S.M., Madhusudhana, R., Mathur, K., Howarth, C.J., Srinivas, G., Satish, K., Reddy, R.N., Seetharama, N. 2009. Co-localization of quantitative trait loci for foliar disease resistance in sorghum. Plant Breeding Zeitschrift für Pflanzenzüchtung 128 (5) pp. 532-535. 10.1111/j.1439-0523.2008.01610.x Cadair Other

Griffiths, I.M., Jenkins, G., Cowan, A.A., Howarth, C.J. 2009. Dissecting the yield components in oats. 2009 Plant Science Wales, Cardiff, United Kingdom of Great Britain and Northern Ireland, 22/01/2009 - 23/01/2009.

Tinker, N.A., Kilian, A., Wight, C.P., Heller-Uszynska, K., Wenzl, P., Rines, H.W., Bjørnstad, A., Howarth, C.J., Jannink, J., Anderson, J.M., Rossnagel, B.G., Stuthman, D.D., Sorrells, M.E., Jackson, E.W., Tuvesson, S., Kolb, F.L., Olsson, O., Federizzi, L.C., Carson, M.L., Ohm, H.W., Molnar, S.J., Scoles, G.J., Eckstein, P.E., Bonman, J.M., Ceplitis, A., Langdon, T. 2009. New DArT markers for oat provide enhanced map coverage and global germplasm characterization. BMC Genomics 10 (1) 39 pp. 39. 10.1186/1471-2164-10-39 Cadair Other

Marshall, A.H., Howarth, C.J., Cowan, A.A., Langdon, T., Valentine, J., McDevitt, J.E. 2009. The incorporation of important traits underlying sustainable development of the oat crop through combining 'conventional' phenotypic selection with molecular marker technologies (OatLINK). HGCA Final Report on project RD-2004-2957 Prifysgol Aberystwyth | Aberystwyth University Other Other

2008

Stewart, D., McDougall, G.J., Valentine, J., Cowan, A.A., Howarth, C.J. 2008. A review of the health benefits of oats. Final Report SEERAD Commission No SCR/917/06 Scottish Executive Environment and Rural Affairs Department

Witcombe, J.R., Hollington, P.A., Howarth, C.J., Reader, S., Steele, K.A. 2008. Breeding for abiotic stresses for sustainable agriculture. Philosophical Transactions B: Biological Sciences 363 (1492) pp. 703-716. 10.1098/rstb.2007.2179 Cadair

Srinivas, G., Satish, K., Murali mohan, S., Nagaraja Reddy, R., Madhusudhana, R., Balakrishna, D., Venkatesh Bhat, B., Howarth, C.J., Seetharama, N. 2008. Development of genic-microsatellite markers for sorghum staygreen QTL using a comparative genomic approach with rice. TAG Theoretical and Applied Genetics 117 (2) pp. 283-296. 10.1007/s00122-008-0773-8 Other

Howarth, C.J., Griffiths, I.M., Cowan, A.A., Langdon, T., Marshall, A.H. 2008. Development of markers associated with traits of agronomic importance in winter oats. Oat Workshop. Plant and Animal Genome XIX Conference , San Diego, United States of America, 09/01/2011 - 13/01/2011.

Griffiths, I.M., Jenkins, G., Cowan, A.A., Howarth, C.J. 2008. Dissecting the components of yield in oats.

Griffith, I.M., Jenkins, G., Cowan, A.A., Howarth, C.J. 2008. Dissecting the components of yield in winter oats: genetic diversity of 16 oat lines. International Conference on Molecular Mapping and Marker Assisted Selection, Vienna, Austria, 03/02/2008 - 06/02/2008.

Kapila, R.K., Yadav, R.S., Plaha, P., Rai, K.N., Yadav, O.P., Hash, C.T., Howarth, C.J. 2008. Genetic diversity among pearl millet maintainers using microsatellite markers. Plant Breeding Zeitschrift für Pflanzenzüchtung 127 (1) pp. 33-37. 10.1111/j.1439-0523.2007.01433.x Cadair

Howarth, C.J. 2008. Genetic improvement of growth and survival at high temperature. In M. Ashraf, P. Harris (eds), Abiotic Stresses: Plant Resistance through breeding and molecular appraoches. Taylor & Francis pp. 277-300. Cadair

Howarth, C.J., Cowan, A.A., Griffiths, I.M., Langdon, T. 2008. Identification of markers associated with traits of agronomic importance in winter oats. 8th International Oat Conference, 'Healthy Foods, Healthy Lives', Radisson Plaza Hotel, Minneapolis, United States of America, 28/06/2008 - 02/07/2008.

Howarth, C.J., Cowan, A.A., Leggett, J.M., Langdon, T. 2008. Introgression of traits from wild ancestors into cultivated oat. Plant and Animal Genome XVI Conference, San Diego, United States of America, 12/01/2008 - 16/01/2008. pp. W47.

Wnetrzak, J., Evans, A.L.W., Howarth, C.J., Langdon, T., Hasterok, R. 2008. Molecular and cytogenetic study of mobile elements as genome-specific sequences in Avena species. 2008 Plant Science Wales, Cardiff, United Kingdom of Great Britain and Northern Ireland, 01/01/2008 - 01/01/2008.

Marshall, A.H., Cowan, A.A., Howarth, C.J., McDevitt, J.E., Langdon, T., Valentine, J. 2008. OATLINK Report. Annual OATLINK Report for DEFRA SAL LINK Department for Environment, Food and Rural Affairs

Howarth, C.J., Cowan, A.A., Leggett, J.M., Langdon, T. 2008. The use of genetic mapping to access and understand valuable traits in wild relatives of the cultivated oat. 5th UK Cereal Genetics & Genomics Workshop, The Annual Small Grain Cereals Workshop, Rothamsted, , 16/04/2008 - 18/04/2008.

Howarth, C., Cowan, A., Leggett, J.M., Langdon, T. 2008. The use of genetic mapping to access valuable traits in wild oats. 8th International Oat Conference, 'Healthy Foods, Healthy Lives', Radisson Plaza Hotel, Minneapolis, United States of America, 28/06/2008 - 02/07/2008.

2007

Howarth, C., Yadav, R., Cavan, G.P., Skot, K., Bidinger, R., Hash, C. 2007. Genetic analysis of the response to high temperature and drought in pearl millet. Plant and Animal Genome XV Conference, San Diego, California, United States of America, 13/01/2007 - 17/01/2007. pp. P15.

Kumar, P.S., Hash, C., Bidinger, F.R., Senthilvel, S., Howarth, C., Yadav, R. 2007. Independent validation of pearl millet Lg2 terminal drought tolerance QTL. Plant and Animal Genome XV Conference, San Diego, California, United States of America, 13/01/2007 - 17/01/2007. pp. P377.

Bidinger, F.R., Nepolean, T., Hash, C.T., Yadav, R.S., Howarth, C.J. 2007. Quantitative trait loci for grain yield in pearl millet under variable postflowering moisture conditions. Crop Science 47 (3) pp. 969-980. 10.2135/cropsci2006.07.0465 Cadair Other

Hash, C., Rizvi, S.M.H., Kumar, P.S., Bidinger, F.R., Serraj, R., Vadez, V., Nepolean, T., Senthilvel, S., Sharma, A., Kolesnikova-Allen, M.A., Yadav, O.P., Yadav, R., Howarth, C. 2007. Replicated success in marker-assisted backcrossing of a major drought tolerance QTL in pearl millet. Plant and Animal Genome XV Conference, San Diego, California, United States of America, 13/01/2007 - 17/01/2007. pp. P372.

Donnison, I.S., Thomas, H., Armstead, I.P., Ougham, H.J., Howarth, C.J., Galyuon, I.K.A. 2007. The genetic control of senescence revealed by mapping quantitative trait loci. In S. Gan (ed), Annual Plant Reviews: Senescence Processes in Plants. Wiley pp. 171-201. Cadair Other

2006

Howarth, C., Langdon, T., Cowan, A., Valentine, J. 2006. Development of markers for oil and other traits of agronomic importance in oats. 3rd UK Cereal Genetics and Genomics Workshop, Norwich, United Kingdom of Great Britain and Northern Ireland, 06/04/2006 - 07/04/2006.

Howarth, C., Yadav, R., Skot, K., Bidinger, F.R., Masood, H.R., Sharma, A., Breese, W.A., Witcombe, J.R., Hash, C. 2006. Successful marker-assisted breeding to improve pearl millet from lab to farmers' field. 3rd UK Cereal Genetics and Genomics Workshop, Norwich, United Kingdom of Great Britain and Northern Ireland, 06/04/2006 - 07/04/2006.

Hash, C.T., Sharma, A., Kolesnikova-Allen, M.A., Singh, S.D., Thakur, R.P., Bhasker Raj, A.G., Ratnaji Rao, M.N.V., Nijhawan, D.C., Beniwal, C.R., Sagar, P., Yadav, H.P., Yadav, Y.P., Srikant, S., Bhatnagar, S.K., Khairwal, I.S., Howarth, C.J., Cavan, G.P., Gale, M.D., Liu, C., Devos, K.M., Breese, W.A., Witcombe, J.R. 2006. Teamwork delivers biotechnology products to Indian small-holder crop-livestock producers: Pearl millet hybrid “HHB 67 Improved” enters seed delivery pipeline. SAT Agricultural Research 2 (1) Other

2005

Bidinger, F.R., Serraj, R., Rizvi, S.M.H., Howarth, C.J., Yadav, R.S., Hash, C.T. 2005. Field evaluation of drought tolerance QTL effects on phenotype and adaptation in pearl millet [Pennisetum glaucum (L.) R. Br.] topcross hybrids. Field Crops Research 94 (1) pp. 14-32. 10.1016/j.fcr.2004.11.006 Cadair

Howarth, C. 2005. Genetic diversity in Avena species and in spring and winter cultivated oats. Genetic Diversity, Cambridge, United Kingdom of Great Britain and Northern Ireland, 01/12/2005 - 02/12/2005.

Howarth, C. 2005. Genetic diversity in spring and winter oat varieties from the 1920s to the present day. 2005 Society for Experimental Botany, Annual Main Meeting, Barcelona, Spain, 11/07/2005 - 15/07/2005. pp. S267.

Yadav, R.S., Bidinger, F.R., Hash, C.T., Cavan, G.P., Serraj, R., Howarth, C.J. 2005. Improving pearl millet drought tolerance. International Sorghum and Millet Newsletter 42 pp. 15-17. Cadair

Howarth, C.J., Leggett, J.M., Langdon, T., Valentine, J. 2005. Phylogeny of ACCase in Avena. pp. 3-5. Cadair

Howarth, C., Cowan, A.A., Leggett, J.M., Valentine, J. 2005. Using molecular mapping to access and understand valuable traits in wild relatives of oats. Report of a Cereals Network, First Meeting, Armenia, Armenia, 03/07/2003 - 05/07/2003. pp. 100. Cadair Other

2004

Howarth, C., Langdon, T., Cowan, A., Leggett, M., Valentine, J. 2004. Development and use of markers for oil in oats. pp. 53. Other

Yadav, R.S., Hash, C.T., Bidinger, F.R., Devos, K.M., Howarth, C.J. 2004. Genomic regions associated with grain yield and aspects of post-flowering drought tolerance in pearl millet across stress environments and tester background. Euphytica 136 (3) pp. 265-277. 10.1023/B:EUPH.0000032711.34599.3a Cadair

2003

Hash, C.T., Yadav, R.S., Sharma, A., Bidinger, F.R., Devos, K.M., Gale, M.D., Howarth, C.J., Chandra, S., Cavan, G.P., Serraj, R., Kumar, P.S., Breese, W.A., Witcombe, J.R. 2003. Impact of pearl millet molecular marker research. Research Highlight Plant Science Programme Annual Report to DFID 2002 Department for International Development Cadair

Yadav, R.S., Bidinger, F.R., Hash, C.T., Yadav, Y.P., Yadav, O.P., Bhatnagar, S.K., Howarth, C.J. 2003. Mapping and characterisation of QTLxE interactions of grain and stover yield determining traits in pearl millet. TAG Theoretical and Applied Genetics 106 (3) pp. 512-520. 10.1007/s00122-002-1081-3 Cadair Other

Valentine, J., Cowan, A.A., Howarth, C.J., Langdon, T. 2003. One hundred years of progress in cereal breeding from Mendel to molecular selection - Oats. In C. Mare, P. Faccioli, A. Stanca (eds), From biodiversity to genomics: breeding strategies for small grain cereals in the third Millennium . EUCARPIA Cereal Section Meeting, Salsomaggiore, Italy, 21/11/2002 - 25/11/2002. Istituto Sperimentale per la Cerealicoltura pp. 79-82. Cadair

Breese, W.A., Hash, C.T., Devos, K.M., Howarth, C.J. 2003. Pearl millet genomics - an overview with respect to breeding for resistance to downy mildew. In J. Leslie (ed), Sorghum and Millets Diseases. World Agriculture University of Iowa Press pp. 243-246. 10.1002/9780470384923.ch41

Breese, W.A., Hash, C.T., Devos, K.M., Howarth, C.J. 2003. Pearl millet genomics and breeding for resistance to downy mildew. In J. Leslie (ed), Sorghum and Millet Diseases (World Agriculture). 1st edn, Wiley pp. 243-256. Cadair Other

2002

Yadav, R.S., Hash, C.T., Bidinger, F.R., Cavan, G.P., Howarth, C.J. 2002. Quantitative trait loci associated with traits determining grain and stover yield in pearl millet under terminal drought stress conditions. TAG Theoretical and Applied Genetics 104 (1) pp. 67-83. 10.1007/s001220200008 Cadair Other