Pentaploidization Enriches the Genetic Diversity of Wheat by Enhancing the Recombination of AB Genomes.

ABSTRACT: Allohexaploidization and continuous introgression play a key role in the origin and evolution of bread wheat. The genetic bottleneck of bread wheat resulting from limited germplasms involved in the origin and modern breeding may be compensated by gene flow from tetraploid wheat through introgressive hybridization. The inter-ploidy hybridization between hexaploid and tetraploid wheat generates pentaploid hybrids first, which absorbed genetic variations both from hexaploid and tetraploid wheat and have great potential for re-evolution and improvement in bread wheat. Therefore, understanding the effects of the pentaploid hybrid is of apparent significance in our understanding of the historic introgression and in informing breeding. In the current study, two sets of F₂ populations o

SUBMITTER: Yang F 

PROVIDER: S-EPMC9281561 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature