Separating phases of allopolyploid evolution with resynthesized and natural Capsella bursa-pastoris.

ABSTRACT: Allopolyploidization is a frequent evolutionary transition in plants that combines whole-genome duplication (WGD) and interspecific hybridization. The genome of an allopolyploid species results from initial interactions between parental genomes and long-term evolution. Distinguishing the contributions of these two phases is essential to understanding the evolutionary trajectory of allopolyploid species. Here, we compared phenotypic and transcriptomic changes in natural and resynthesized Capsella allotetraploids with their diploid parental species. We focused on phenotypic traits associated with the selfing syndrome and on transcription-level phenomena such as expression-level dominance (ELD), transgressive expression (TRE), and homoeolog expression bias (HEB). We found that selfing

SUBMITTER: Duan T 

PROVIDER: S-EPMC10945474 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature