Aneuploidy promotes intraspecific diversification of the endemic East Asian herb Lycoris aurea complex.

ABSTRACT: Polyploidy has received considerable interest in the past, but aneuploidy and partial rearrangements may also influence genomic divergence. In this study, we reported a comprehensive cytogeographic, morphological and genetic analysis of Lycoris aurea complex throughout its range and attempted to explore the association between aneuploidy and species diversification. The karyotypes of this complex presented aneuploidy variations mainly divided into four cytotypes: I (2n = 10m + 2T), II (2n = 8m + 6T), III (2n = 7m + 8T), and IV (2n = 6m + 10T). Cytotype distributions were highly structured geographically. Two main cytotypes, II and IV, are geographically allopatric. The populations with cytotype II are mainly distributed in central China and the southern i

SUBMITTER: Wang J 

PROVIDER: S-EPMC9558133 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature