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Genomics of Root and Stay-Green Traits to Improve Wheat Adaptation to Late Season Drought

Christopher, J., Richard, C., Chenu, K., Christopher, M., Paccapello, V., Borrell, A. K. and Hickey, L. (2020) Genomics of Root and Stay-Green Traits to Improve Wheat Adaptation to Late Season Drought. In: Plant and Animal Genome XXVIII Conference 2020, January 11-15, 2020, San Diego, USA.

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Article Link(s): https://pag.confex.com/pag/xxviii/meetingapp.cgi/P...

Abstract

In many wheat cropping regions, water limitation is the primary production constraint. This situation is predicted to be more frequent with future climate change. The stay-green phenotype allows crops to remain green and photosynthesize for longer than standard phenotypes after anthesis which can improve yields under late season drought. Root systems with more roots at depth can contribute by increasing access to deep soil moisture late in the season.
To study the genetics of root and stay-green traits in wheat, a multi reference parent nested association mapping (NAM) population was developed. Using the “speed breeding” system of rapid generation advance, over 1500 recombinant inbred lines were generated in approximately 18 months. A novel whole-genome NAM method (WG-NAM) was developed for genome-wide association mapping to identify markers associated with the target traits.

Item Type:Conference or Workshop Item (Paper)
Business groups:Crop and Food Science
Subjects:Science > Botany > Genetics
Agriculture > Agriculture (General) > Agriculture and the environment
Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Plant culture > Field crops > Wheat
Deposited On:23 Sep 2021 05:37
Last Modified:23 Sep 2021 05:50

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