Avoiding lodging in wheat through the development of genetic resources and the genetic dissection of lodging proof traits
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ArticleLanguage: English Publication details: Mexico : CIMMYT, 2016.Subject(s):
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Proceedings of the 2nd International TRIGO Wheat Yield Potential p. 77-82Summary: A model of the lodging process has been successfully adapted for use on spring wheat by evaluating lodging-associated traits in field experiments in northwestern Mexico using spring wheat cultivars from the CIMMYT Mexico Core Germplasm (CIMCOG) panel. In order to elucidate the genetic control of these traits, we evaluated a winter wheat Avalon x spring wheat Cadenza doubled haploid population grown under UK conditions. Both spring and winter wheat data suggested that increased structural stem and root biomass will be necessary for improving lodging resistance. This will incur trade-offs with grain yield, primarily because of the overlapping development of lodging traits with grain yield formation. Genetic ranges for spring and winter wheat indicated that the most challenging dimension to achieve would be root plate spread, and new diverse germplasm must be identified to achieve this. Quantitative trait loci (QTL) related to lodging traits were identified in the Avalon x Cadenza genotypes; fine mapping and validation of these QTL will be paramount in accelerating selection for lodging resistance while also improving genetic yield potential.
| Item type | Current library | Collection | Call number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|
| Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | Available |
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A model of the lodging process has been successfully adapted for use on spring wheat by evaluating lodging-associated traits in field experiments in northwestern Mexico using spring wheat cultivars from the CIMMYT Mexico Core Germplasm (CIMCOG) panel. In order to elucidate the genetic control of these traits, we evaluated a winter wheat Avalon x spring wheat Cadenza doubled haploid population grown under UK conditions. Both spring and winter wheat data suggested that increased structural stem and root biomass will be necessary for improving lodging resistance. This will incur trade-offs with grain yield, primarily because of the overlapping development of lodging traits with grain yield formation. Genetic ranges for spring and winter wheat indicated that the most challenging dimension to achieve would be root plate spread, and new diverse germplasm must be identified to achieve this. Quantitative trait loci (QTL) related to lodging traits were identified in the Avalon x Cadenza genotypes; fine mapping and validation of these QTL will be paramount in accelerating selection for lodging resistance while also improving genetic yield potential.
Wheat CRP FP3 - Global partnership to accelerate genetic gain in farmers field
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