Neidio i’r brif dudalen lywio Neidio i chwilio Neidio i’r prif gynnwys
  • Aberystwyth University
    Edward Llwyd Building
    Penglais
    Aberystwyth

    Teyrnas Unedig Prydain Fawr a Gogledd Iwerddon

20002025

Allbwn ymchwil fesul blwyddyn

Proffil personol

Proffil

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. 
 

Diddordebau ymchwil

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.

Arbenigedd sy’n gysylltiedig â NDC y CU

Yn 2015, cytunodd gwladwriaethau sy’n aelodau'r Cenhedloedd Unedig ar 17 o Nodau Datblygu Cynaliadwy (NDC) byd-eang i ddod â thlodi i ben, diogelu’r blaned a sicrhau ffyniant i bawb. Mae gwaith y person hwn yn cyfrannu at y NDC canlynol:

  1. NDC 2 - Dim Newyn
    NDC 2 Dim Newyn
  2. NDC 3 - Iechyd a Llesiant Da
    NDC 3 Iechyd a Llesiant Da
  3. NDC 13 - Gweithredu ar y Newid yn yr Hinsawdd
    NDC 13 Gweithredu ar y Newid yn yr Hinsawdd
  4. NDC 16 - Heddwch, Cyfiawnder a Sefydliadau Cadarn
    NDC 16 Heddwch, Cyfiawnder a Sefydliadau Cadarn

Ôl bys

Ewch i ganol y pynciau ymchwil lle mae Tim Langdon ar waith. Mae’r labelau pwnc hyn yn dod o waith y person hwn. Gyda’i gilydd maen nhw’n ffurfio ôl bys unigryw.
  • 1 Proffiliau Tebyg

Cydweithrediadau a’r prif feysydd ymchwil yn ystod y pum mlynedd ddiwethaf

Cydweithrediad allanol yn ddiweddar ar lefel gwlad/tiriogaeth. Plymiwch i mewn i'r manylion drwy glicio ar y dotiau neu
  • 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 eraill, 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 Hyd 2025, Yn: Nature. 649, 8095, t. 131-139 31 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    11 Dyfyniadau (Scopus)
    4 Wedi eu Llwytho i Lawr (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 eraill, 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 Hyd 2025, Yn: Nature Communications. 16, 1, 14 t., 9486.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    4 Dyfyniadau (Scopus)
    2 Wedi eu Llwytho i Lawr (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 Ion 2024, Yn: Crop and Pasture Science. 75, 1, 8 t., CP23247.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    12 Dyfyniadau (Scopus)
    38 Wedi eu Llwytho i Lawr (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 Rhag 2022, Yn: Euphytica. 218, 1, 9 t., 3.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

    9 Dyfyniadau (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 Hyd 2021, Yn: Foods. 10, 10, 14 t., 2356.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    38 Dyfyniadau(SciVal)
    163 Wedi eu Llwytho i Lawr (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 Gorff 2021, Yn: Theoretical and Applied Genetics. 134, 7, t. 2063-2077 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

    Mynediad agored
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    27 Dyfyniadau (Scopus)
    244 Wedi eu Llwytho i Lawr (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 eraill, 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 Mai 2021, Yn: Nature Communications. 12, 1, 13 t., 2563.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    79 Dyfyniadau (Scopus)
    437 Wedi eu Llwytho i Lawr (Pure)
  • Genomic Approaches for Climate Resilience Breeding in Oats

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

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

    8 Dyfyniadau (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 Mai 2019, Yn: Plant Disease. 103, 5, t. 832-840 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

    Mynediad agored
    11 Dyfyniadau (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 Tach 2019, Yn: BMC Biology. 17, 1, 92.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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    64 Dyfyniadau (Scopus)
    247 Wedi eu Llwytho i Lawr (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 Ion 2019, Yn: New Phytologist. 221, 3, t. 1544-1555 12 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

    Mynediad agored
    Ffeil
    28 Dyfyniadau (Scopus)
    290 Wedi eu Llwytho i Lawr (Pure)