New insights into the molecular phylogeny and biogeographical history of <i>Allium</i> subgenus <i>Melanocrommyum</i> (Amaryllidaceae) based on plastome and nuclear sequences.

ABSTRACT: Subgenus Melanocrommyum is the second largest subgenus of Allium, with a wide distribution ranging from the Canary Islands to northwestern India. This study investigates the phylogeny, biogeographic patterns, and morphological character evolution of the subgenus using 117 accessions representing 107 taxa across the 19 currently recognized sections within Allium subgenus Melanocrommyum. Although the subgenus is monophyletic, significant incongruence exists between morphological and molecular data. Our plastome-based phylogenetic analysis identified five distinct lineages (A-E), corresponding to the geographic distributions of the species. However, plastome lineages (A-E) and ITS clusters (A-G) were incongruent. Biogeographic and molecular dating analyses suggest

SUBMITTER: Ergashov I 

PROVIDER: S-EPMC12302642 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature