Gene expression bias between the subgenomes of allopolyploid hybrids is an emergent property of the kinetics of expression.

ABSTRACT: Hybridization coupled to polyploidy, or allopolyploidy, has dramatically shaped the evolution of flowering plants, teleost fishes, and other lineages. Studies of recently formed allopolyploid plants have shown that the two subgenomes that merged to form that new allopolyploid do not generally express their genes equally. Instead, one of the two subgenomes expresses its paralogs more highly on average. Meanwhile, older allopolyploidy events tend to show biases in duplicate losses, with one of the two subgenomes retaining more genes than the other. Since reduced expression is a pathway to duplicate loss, understanding the origins of expression biases may help explain the origins of biased losses. Because we expect gene expression levels to experience stabilizing selection, our conceptual fra

SUBMITTER: An H 

PROVIDER: S-EPMC10817154 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature