Unraveling the evolutionary complexity of <i>Lycoris</i>: Insights into chromosomal variation, genome size, and phylogenetic relationships.

ABSTRACT: Hybridization and polyploidy are key drivers of species diversity and genome variation in Lycoris, but their cytological and evolutionary consequences remain poorly understood. Here, we investigated chromosome numbers and genome sizes in 64 accessions representing the morphological diversity across the genus. Chromosome numbers ranged from 12 to 33, with seven accessions newly identified, including L. chunxiaoensis (2n = 33), two putative L. guangxiensis (2n = 19), and five natural hybrids (2n = 16, 18, 29, 33). Genome sizes varied from 18.03 Gb (L. wulingensis) to 32.62 Gb (L. caldwellii). Although no significant correlation was found between genome size and chromosome number across all accessions, a strong correlation within ploidy-

SUBMITTER: Shu X 

PROVIDER: S-EPMC12800772 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature