Genomic introgression underlies environmental adaptation in three species of Chinese wingnuts, <i>Pterocarya</i>.

ABSTRACT: Intraspecific genetic variance and gene flow can support the adaptive evolution of species challenged by climate shifts or novel environmental conditions. Less well understood is how genome organization and gene flow interact in closely related species during evolutionary divergence and differentiation. Here we conducted genomic footprint analyses to determine how three species of Pterocarya (P . stenoptera, P. hupehensis, and P. macroptera), which are sympatric but occupy different elevational niches, adapted to the heterogeneous environment of the Qinling-Daba Mountains, China. We identified candidate genes for environmental adaptation (i.e., PIEZO1, WRKY39, VDAC3, CBL1, and RAF), and also identifi

SUBMITTER: Geng 耿方东 F 

PROVIDER: S-EPMC12146873 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature