The influence of genetic architecture on responses to selection under drought in rice.

ABSTRACT: Accurately predicting responses to selection is a major goal in biology and important for successful crop breeding in changing environments. However, evolutionary responses to selection can be constrained by such factors as genetic and cross-environment correlations, linkage, and pleiotropy, and our understanding of the extent and impact of such constraints is still developing. Here, we conducted a field experiment to investigate potential constraints to selection for drought resistance in rice (Oryza sativa) using phenotypic selection analysis and quantitative genetics. We found that traits related to drought response were heritable, and some were under selection, including selection for earlier flowering, which could allow drought escape. However, patterns of selection generally w

SUBMITTER: Calic I 

PROVIDER: S-EPMC9624088 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature