Ghost introgression facilitates genomic divergence of a sympatric cryptic lineage in Cycas revoluta

ABSTRACT: Abstract A cryptic lineage is a genetically diverged but morphologically unrecognized variant of a known species. Clarifying cryptic lineage evolution is essential for quantifying species diversity. In sympatric cryptic lineage divergence compared with allopatric divergence, the forces of divergent selection and mating patterns override geographical isolation. Introgression, by supplying preadapted or neutral standing genetic variations, can promote sympatric cryptic lineage divergence via selection. However, most studies concentrated on extant species introgression, ignoring the genetic legacy of introgression from extinct or unsampled lineages (“ghost introgression”). Cycads are an ideal plant for studying the influence of ghost introgression because of their common interspecific gene fl

SUBMITTER: Chang J 

PROVIDER: S-EPMC10439367 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature