Comparison of genetic structure of multiple Betula species across China reveals ploidy variation, latitudinal diversity patterns and interspecific hybridization and admixture.

Abstract excerpt

BACKGROUND AND AIMS: Hybridization and introgression play crucial roles in evolution and adaptation. Although the influence of ploidy differences on interspecific hybridization has been documented, most studies have focused on single pairs of hybridizing species, thereby limiting our understanding of broader patterns of interspecific gene flow. Here, we investigate hybridization among six partially sympatric...

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