Population genomics indicate three different modes of divergence and speciation with gene flow in the green-winged teal duck complex.

ABSTRACT: The processes leading to divergence and speciation can differ broadly among taxa with different life histories. We examine these processes in a small clade of ducks with historically uncertain relationships and species limits. The green-winged teal (Anas crecca) complex is a Holarctic species of dabbling duck currently categorized as three subspecies (Anas crecca crecca, A. c. nimia, and A. c. carolinensis) with a close relative, the yellow-billed teal (Anas flavirostris) from South America. A. c. crecca and A. c. carolinensis are seasonal migrants, while the other taxa are sedentary. We examined divergence and speciation patterns in this group, determining their phylogenetic relationships and the presence and levels of gene flow among lineages using both mitochondrial and genome-wide nucl

SUBMITTER: Spaulding F 

PROVIDER: S-EPMC10092703 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature