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  • Aberystwyth University
    Edward Llwyd Building
    Penglais
    Aberystwyth

    United Kingdom of Great Britain and Northern Ireland

20002025

Research activity per year

Personal profile

Profile

I am working within the oat group at IBERS. Varieties from our winter and spring breeding programmes provide the bulk of the UK oat crop. My research aims to provide genetic and genomic resources which will improve variety performance. 
 

Research interests

Oats have a reputation as a 'healthy' crop, based on beneficial dietary effects (satiety, cholesterol lowering, gluten-free) and on relatively low input and intervention requirements in the field. Some of these properties may reflect oats' late domestication, having apparently spread from Turkey to Central Europe as a weed of cereal fields and only then having been deliberately cultivated as a crop in its own right. By avoiding human selection for yield and food value, oats may have carried a greater genetic diversity and resilience through to the present day than cereals cultivated from the outset. Our research uses genetic and genomic resources to understand the origin of today's oat crop, and attempts to identify lost genetic variation that may be recovered and used to improve modern varieties. A century ago, oats were the largest crop by area in much of Europe and North America, and very large collections of cultivars and wild relatives were made across the world. We are assembling the genome sequence of red oat, Avena byzantina, in collaboration with Dr Martin Mascher (IPK, Gatersleben) and using this as a reference to understand the significance of genotypic diversity in material from historic and recent collections (GCRF and BBSRC projects, Adriana Ravagnani, Aled Evans and Arthur Morris) . 

Oats lag behind other cereals in the development of efficient tissue culture methods. With support from Senova and Saaten Union, and in collaboration with Sue Dalton we have been improving doubled haploid production (Tom Cooper, BBSRC CASE student) and transformation protocols (Agnieszka Glądała-Kostarz).

Oats are a minor crop in almost all the countries where they are grown, but their research logistics are as challenging as for related major crops such as wheat and barley. Progress is greatly helped by international collaboration, and we have close links with partners in Europe, North and South America, West, East and Central Asia, North Africa and Australia. We are currently hosting visitors from Canada (Aida Kebede, OECD fellow) and Brazil (Vianei Rother, CAPES fellow). Previous research visitors have come from Poland, Spain, Turkey, Kazakhstan and Japan. We welcome enquiries about visits or collaboration.

BBSRC strategic funding to the institute has allowed development of a wide range of genetic and genomic resources, including an Avena A-genome zipper (with Rob Vickerstaff), a 650 line hexaploid spring oat Nested Association Mapping population (with Irene Griffiths) and mutant hexaploid winter oat populations (with Sandy Cowan). Development, maintenance and analysis of these resources has been carried out by Simon Betts, Sara Lewis, Maciej Biasaga, Sam Gill and Caron Evans.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  1. SDG 2 - Zero Hunger
    SDG 2 Zero Hunger
  2. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being
  3. SDG 13 - Climate Action
    SDG 13 Climate Action
  4. SDG 16 - Peace, Justice and Strong Institutions
    SDG 16 Peace, Justice and Strong Institutions

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Collaborations and top research areas from the last five years

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  • A pangenome and pantranscriptome of hexaploid oat

    Avni, R., Kamal, N., Bitz, L., Jellen, E. N., Bekele, W. A., Angessa, T. T., Auvinen, P., Bitz, O., Boyle, B., Canales, F. J., Carlson, C. H., Chapman, B., Chawla, H. S., Chen, Y., Copetti, D., Correia de Lemos, S., Dang, V., Eichten, S. R., Klos, K. E. & Fenn, A. M. & 55 others, Fiebig, A., Fu, Y. B., Gundlach, H., Gupta, R., Haberer, G., He, T., Herrmann, M. H., Himmelbach, A., Howarth, C. J., Hu, H., Isidro y Sánchez, J., Itaya, A., Jannink, J. L., Jia, Y., Kaur, R., Knauft, M., Langdon, T., Lux, T., Marmon, S., Marosi, V., Mayer, K. F. X., Michel, S., Nandety, R. S., Nilsen, K. T., Paczos-Grzęda, E., Pasha, A., Prats, E., Provart, N. J., Ravagnani, A., Reid, R. W., Schlueter, J. A., Schulman, A. H., Sen, T. Z., Singh, J., Singh, M., Sirijovski, N., Stein, N., Studer, B., Viitala, S., Vronces, S., Walkowiak, S., Wang, P., Waters, A. J., Wight, C. P., Yan, W., Yao, E., Zhang, X. Q., Zhou, G., Zhou, Z., Tinker, N. A., Fiedler, J. D., Li, C., Maughan, P. J., Spannagl, M. & Mascher, M., 29 Oct 2025, In: Nature. 649, 8095, p. 131-139 31 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    11 Citations (Scopus)
    4 Downloads (Pure)
  • Global genomic population structure of wild and cultivated oat reveals signatures of chromosome rearrangements

    Bekele, W. A., Avni, R., L. Birkett, C., Itaya, A., Wight, C. P., Bellavance, J., Brodführer, S., Francisco J. Canales, Carlson, C. H., Fiebig, A., Li, Y., Michel, S., Nandety, R. S., Waring, D. J., Arbelaez, J. D., D. Beattie, A., Caffe, M., Blanco, I. A. D., Jason D. Fiedler & Gupta, R. & 28 others, Gutierrez, L., Harris, J. C., A. Harrison, S., Matthias H. Herrmann, Yung-Fen Huang, Sanchez, J. I. Y., Michael S. McMullen, Fetch, J. M., Kirby T. Nilsen, P. Parkin, I., YuanYing Peng, Kevin P. Smith, Sutton, T., Weikai Yan, Zwer, P., Diederichsen, A., Klos, K. E., Fu, Y.-B., Howarth, C. J., Jannink, J.-L., Jellen, E. N., Langdon, T., Maughan, P. J., Paczos-Grzeda, E., Prats, E., Taner Z. Sen, Martin Mascher & Nicholas A. Tinker, 29 Oct 2025, In: Nature Communications. 16, 1, 14 p., 9486.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    4 Citations (Scopus)
    2 Downloads (Pure)
  • A uniform gene and chromosome nomenclature system for oat (Avena spp.)

    Jellen, E. N., Wight, C. P., Spannagl, M., Blake, V. C., Chong, J., Herrmann, M. H., Howarth, C. J., Huang, Y. F., Juqing, J., Katsiotis, A., Langdon, T., Li, C., Park, R., Tinker, N. A. & Sen, T. Z., 02 Jan 2024, In: Crop and Pasture Science. 75, 1, 8 p., CP23247.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    12 Citations (Scopus)
    38 Downloads (Pure)
  • New insights into the genomic structure of the oats (Avena L., Poaceae): intragenomic polymorphism of ITS1 sequences of rare endemic species Avena bruhnsiana Gruner and its relationship to other species with C-genomes

    Gnutikov, A. A., Nosov, N. N., Loskutov, I. G., Machs, E. M., Blinova, E. V., Probatova, N. S., Langdon, T. & Rodionov, A. V., 08 Dec 2022, In: Euphytica. 218, 1, 9 p., 3.

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)
  • Genotype and environment affect the grain quality and yield of winter oats (Avena sativa L.)

    Howarth, C., Martinez-Martin, M. P., Cowan, A., Griffiths, I., Sanderson, R., Lister, S., Langdon, T., Clarke, S., Fradgley, N. & Marshall, A., 03 Oct 2021, In: Foods. 10, 10, 14 p., 2356.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    38 Citations (SciVal)
    163 Downloads (Pure)
  • Population genomics of Mediterranean oat (A. sativa) reveals high genetic diversity and three loci for heading date

    Canales, F. J., Montilla-Bascón, G., Bekele, W. A., Howarth, C., Langdon, T., Rispail, N., Tinker, N. A. & Prats, E., 01 Jul 2021, In: Theoretical and Applied Genetics. 134, 7, p. 2063-2077 15 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    27 Citations (Scopus)
    244 Downloads (Pure)
  • Subtelomeric assembly of a multi-gene pathway for antimicrobial defense compounds in cereals

    Li, Y., Leveau, A., Zhao, Q., Feng, Q., Lu, H., Miao, J., Xue, Z., Martin, A. C., Wegel, E., Wang, J., Orme, A., Rey, M. D., Karafiátová, M., Vrána, J., Steuernagel, B., Joynson, R., Owen, C., Reed, J., Louveau, T. & Stephenson, M. J. & 24 others, Zhang, L., Huang, X., Huang, T., Fan, D., Zhou, C., Tian, Q., Li, W., Lu, Y., Chen, J., Zhao, Y., Lu, Y., Zhu, C., Liu, Z., Polturak, G., Casson, R., Hill, L., Moore, G., Melton, R., Hall, N., Wulff, B. B. H., Doležel, J., Langdon, T., Han, B. & Osbourn, A., 07 May 2021, In: Nature Communications. 12, 1, 13 p., 2563.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    79 Citations (Scopus)
    438 Downloads (Pure)
  • Genomic Approaches for Climate Resilience Breeding in Oats

    Isidro-Sánchez, J., Prats, E., Howarth, C., Langdon, T. & Montilla-bascón, G., 29 Feb 2020, Genomic Designing of Climate-Smart Cereal Crops. Kole, C. (ed.). Springer Nature, p. 133-169 37 p.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    8 Citations (Scopus)
  • Detached leaf assays for resistance to crown rust reveal diversity within populations of Avena sterilis

    Paczos-Grzęda, E., Sowa, S., Boczkowska, M. & Langdon, T., 08 May 2019, In: Plant Disease. 103, 5, p. 832-840 9 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    11 Citations (Scopus)
  • Genomic insights from the first chromosome-scale assemblies of oat (Avena spp.) diploid species

    Maughan, P. J., Lee, R., Walstead, R., Vickerstaff, R. J., Fogarty, M. C., Brouwer, C. R., Reid, R. R., Jay, J. J., Bekele, W. A., Jackson, E. W., Tinker, N. A., Langdon, T., Schlueter, J. A. & Jellen, E. N., 22 Nov 2019, In: BMC Biology. 17, 1, 92.

    Research output: Contribution to journalArticlepeer-review

    Open Access
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    65 Citations (Scopus)
    247 Downloads (Pure)
  • Towards take-all control: A C-‐21β oxidase required for acylation of triterpene defence compounds in oat

    Leveau, A., Reed, J., Qiao, X., Stephenson, M., Mugford, S. T., Melton, R., Rant, J. C., Vickerstaff, R., Langdon, T. & Osbourn, A., 15 Jan 2019, In: New Phytologist. 221, 3, p. 1544-1555 12 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    File
    28 Citations (Scopus)
    291 Downloads (Pure)