Avian phenotypic convergence is subject to low genetic constraints based on genomic evidence.

ABSTRACT:

Background

Phenotypic convergence between distinct species provides an opportunity to examine the predictability of genetic evolution. Unrelated species sharing genetic underpinnings for phenotypic convergence suggests strong genetic constraints, and thus high predictability of evolution. However, there is no clear big picture of the genomic constraints on convergent evolution. Genome-based phylogenies have confirmed many cases of phenotypic convergence in birds, making them a good system for examining genetic constraints in phenotypic convergence. In this study, we used hierarchical genomic approaches to estimate genetic constraints in three convergent avian traits: nocturnality, raptorial behavior and foot-propelled diving.

Results

Phylogeny-based hypothesis tests and posi

SUBMITTER: Chen YC 

PROVIDER: S-EPMC7648321 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature