Person:
Payne, T.S.

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Payne
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T.S.
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Payne, T.S.

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Now showing 1 - 10 of 10
  • Visualising the pattern of long-term genotype performance by leveraging a genomic prediction model
    (Wiley, 2022) Arief, V.N.; Delacy, I.H.; Payne, T.S.; Basford, K.E.
    Publication
  • Harnessing translational research in wheat for climate resilience
    (Oxford University Press, 2021) Reynolds, M.P.; Lewis, J.; Ammar, K.; Basnet, B.R.; Crespo Herrera, L.A.; Crossa, J.; Dhugga, K.; Dreisigacker, S.; Juliana, P.; Karwat, H.; Kishii, M.; Krause, M.; Langridge, P.; Lashkari, A.; Mondal, S.; Payne, T.S.; Pequeno, D.N.L.; Pinto Espinosa, F.; Sansaloni, C.; Schulthess, U.; Singh, R.P.; Sonder, K.; Sukumaran, S.; Wei Xiong; Braun, H.J.
    Publication
  • Elucidating the genetics of grain yield and stress-resilience in bread wheat using a large-scale genome-wide association mapping study with 55,568 lines
    (Nature Publishing Group, 2021) Juliana, P.; Singh, R.P.; Poland, J.; Shrestha, S.; Huerta-Espino, J.; Velu, G.; Mondal, S.; Crespo Herrera, L.A.; Kumar, U.; Joshi, A.K.; Payne, T.S.; Bhati, P.; Tomar, V.; Consolacion, F.; Campos, J.
    Publication
  • Diversity analysis of 80,000 wheat accessions reveals consequences and opportunities of selection footprints
    (Nature Publishing Group, 2020) Sansaloni, C.; Franco, J.; Santos, B.; Percival-Alwyn, L.; Singh, S.; Petroli, C.; Campos, J.; Dreher, K.; Payne, T.S.; Marshall, D.S.; Kilian, B.; Milne, I.; Raubach, S.; Shaw, P.D.; Stephen, G.; Carling, J.; Saint Pierre, C.; Burgueño, J.; Crossa, J.; Huihui Li; Guzman, C.; Kehel, Z.; Amri, A.; Kilian, A.; Wenzl, P.; Uauy, C.; Banziger, M.; Caccamo, M.; Pixley, K.V.
    Publication
  • Genetic contribution of synthetic hexaploid wheat to CIMMYT’s spring bread wheat breeding germplasm
    (Nature Publishing Group, 2019) Rosyara, U.; Kishii, M.; Payne, T.S.; Sansaloni, C.; Singh, R.P.; Braun, H.J.; Dreisigacker, S.
    Synthetic hexaploid (SH) wheat (AABBD’D’) is developed by artificially generating a fertile hybrid between tetraploid durum wheat (Triticum turgidum, AABB) and diploid wild goat grass (Aegilops tauschii, D’D’). Over three decades, the International Maize and Wheat Improvement Center (CIMMYT) has developed and utilized SH wheat to bridge gene transfer from Ae. tauschii and durum wheat to hexaploid bread wheat. This is a unique example of success utilizing wild relatives in mainstream breeding at large scale worldwide. Our study aimed to determine the genetic contribution of SH wheat to CIMMYT’s global spring bread wheat breeding program. We estimated the theoretical and empirical contribution of D’ to synthetic derivative lines using the ancestral pedigree and marker information using over 1,600 advanced lines and their parents. The average marker-estimated D’ contribution was 17.5% with difference in genome segments suggesting application of differential selection pressure. The pedigree-based contribution was correlated with marker-based estimates without providing chromosome segment specific variation. Results from international yield trials showed that 20% of the lines were synthetic derived with an average D’ contribution of 15.6%. Our results underline the importance of SH wheat in maintaining and enhancing genetic diversity and genetic gain over years and is important for development of a more targeted introgression strategy. The study provides retrospective view into development and utilization of SH in the CIMMYT Global Wheat Program.
    Publication
  • International Winter Wheat Improvement Program: history, activities, impact and future
    (Higher Education Press, 2019) Morgounov, A.; Ozdemir, F.; Keser, M.; Akin, B.; Payne, T.S.; Braun, H.J.
    International Winter Wheat Improvement Program (IWWIP) was established in 1986 between the Government of Turkey and CIMMYT with three main objectives: (1) develop winter/facultative germplasm for Central and West Asia, (2) facilitate global winter wheat germplasm exchange, and (3) training wheat scientists. ICARDA joined the program in 1991 making it a three-way partnership that continues to work effectively. The germplasm developed by IWWIP as well as the winter wheat cultivars and lines received from global cooperators are assembled into international nurseries. These nurseries are offered annually to public and private entities (IWWIP website) and distributed to more than 100 cooperators in all continents. IWWIP impact has primarily been in new winter wheat cultivars combining broad adaptation, high yield potential, drought tolerance and disease resistance. A total of 93 IWWIP cultivars have been released in 11 countries occupying annually an estimated 2.5–3.0 Mha. IWWIP cooperation with researchers in Turkey, Central and West Asia and several US universities has resulted in a number of publications reviewed in this paper. Important IWWIP impacts include national inventories of wheat landraces in Turkey, Tajikistan and Uzbekistan, their collection, characterization, evaluation and utilization.
    Publication
  • Strategic crossing of biomass and harvest index—source and sink—achieves genetic gains in wheat
    (Springer, 2017) Reynolds, M.P.; Pask, A.; Hoppitt, W.J.E.; Sonder, K.; Sukumaran, S.; Molero, G.; Saint Pierre, C.; Payne, T.S.; Singh, R.P.; Braun, H.J.; González, F.G.; Terrile, I.I.; Barma, N.C.D.; Abdul Hakim, M.; He Zhonghu; Zheru Fan; Novoselovic, D.; Maghraby, M.; Gad, K.I.M.; Galal, E.G.; Hagras, A.; Mohamed M. Mohamed; Morad, A.F.A.; Kumar, U.; Singh, G.P.; Naik, R.; Kalappanavar, I.K.; Biradar, S.; Prasad, S.V.S.; Chatrath, R.; Sharma, I.; Panchabhai, K.; Sohu, V.S.; Gurvinder Singh Mavi; Mishra, V.K.; Balasubramaniam, A.; Jalal Kamali, M.R.; Khodarahmi, M.; Dastfal, M.; Tabib Ghaffary, S.M.; Jafarby, J.; Nikzad, A.R.; Moghaddam, H.A.; Hassan Ghojogh; Mehraban, A.; Solís Moya, E.; Camacho Casas, M.A.; Figueroa, P.; Ireta Moreno, J.; Alvarado Padilla, J.I.; Borbón Gracia, A.; Torres, A.; Quiche, YN.; Upadhyay, S.R.; Pandey, D.; Imtiaz, M.; Rehman, M.U.; Hussain, M.; Ud-din, R.; Qamar, M.; Muhammad Kundi; Mujahid, M.Y.; Ahmad, G.; Khan, A.J.; Mehboob Ali Sial; Mustatea, P.; Well, E. von; Ncala, M.; Groot, S. de; Hussein, A.H.A.; Tahir, I.S.A.; Idris, A.A.M.; Elamein, H.M.M.; Yann Manes; Joshi, A.K.
    To accelerate genetic gains in breeding, physiological trait (PT) characterization of candidate parents can help make more strategic crosses, increasing the probability of accumulating favorable alleles compared to crossing relatively uncharacterized lines. In this study, crosses were designed to complement “source” with “sink” traits, where at least one parent was selected for favorable expression of biomass and/or radiation use efficiency—source—and the other for sink-related traits like harvest-index, kernel weight and grains per spike. Female parents were selected from among genetic resources—including landraces and products of wide-crossing (i.e. synthetic wheat)—that had been evaluated in Mexico at high yield potential or under heat stress, while elite lines were used as males. Progeny of crosses were advanced to the F4 generation within Mexico, and F4-derived F5 and F6 generations were yield tested to populate four international nurseries, targeted to high yield environments (2nd and 3rd WYCYT) for yield potential, and heat stressed environments (2nd and 4th SATYN) for climate resilience, respectively. Each nursery was grown as multi-location yield trials. Genetic gains were achieved in both temperate and hot environments, with most new PT-derived lines expressing superior yield and biomass compared to local checks at almost all international sites. Furthermore, the tendency across all four nurseries indicated either the superiority of the best new PT lines compared with the CIMMYT elite checks, or the superiority of all new PT lines as a group compared with all checks, and in some cases, both. Results support—in a realistic breeding context—the hypothesis that yield and radiation use efficiency can be increased by improving source:sink balance, and validate the feasibility of incorporating exotic germplasm into mainstream breeding efforts to accelerate genetic gains for yield potential and climate resilience.
    Publication
  • Impacts of International Wheat Improvement Research: 1994-2014
    (CIMMYT, 2016) Lantican, M.A.; Braun, H.J.; Payne, T.S.; Singh, R.G.; Sonder, K.; Baum, M.; Van Ginkel, M.; Erenstein, O.
    This study documents for 1994-2014 the global use of improved wheat germplasm and the economic benefits from international collaboration in wheat improvement research funded by CGIAR and involving national agricultural research systems, CGIAR organizations, and advanced research institutes. Conducted by the CGIAR Research Program on Wheat (WHEAT), this is the fourth in a series of global wheat impact assessments (Byerlee and Moya 1993; Heisey et al. 2002; Lantican et al. 2005) initiated by the International Maize and Wheat Improvement Center (CIMMYT). It updates data and earlier analyses from the most recent, previous study, covering 1988-2002 (Lantican et al. 2005).
    Publication
  • Wheat bibliography from Southern Africa: breeding, pathology and production research and extension literature
    (CIMMYT, 1997) Payne, T.S.
    The impetus for this bibliography came as a guide to the Steering Committee of the Maize and Wheat Improvement Research Network for SADC (MWIRNET) to the published wheat research conducted in southern Africa. This type of information was initially critical to allow objective consideration of the relevance ofresearch proposals submitted to MWIRNET for funding support. It is hoped that this bibliography will now serve a broader audience of administrators, researchers, extension specialists and farmers by giving them increased access to the large pool of information concerning wheat in southern Africa. The bibliography lists citations of publications printed primarily in English. It is arranged in three sections; a country-topic index, and alphabetic author lists of literature-at-Iarge, and research whose conduct or publication was supported by CIMMYT. The bibliography was compiled from various electronic and printed sources. and by scouring annual reports and workshop proceedings. Problems associated with assembling lists of this sort include the necessary abridgment of the corpus literature, the necessity to set a publication deadline thus resulting in failure to include contemporary citations, and duplications. omissions, typographical and citation errors, and arbitrary indexing procedures. Inaccuracy in the reporting of these citations is sincerely regretted.
    Publication
  • The ninth regional wheat workshop for Eastern, Central and Southern Africa
    (CIDA Eastern Africa Cereals Program, 1996) Tanner, D.G.; Payne, T.S.; Abdalla, O.S.
    This paper presents an overview of issues related to the current status of wheat research, production and consumption in eleven countries of Eastern, Central and Southern Africa. It also illustrates national trends since the last report of this kind was p
    Publication