Allotetraploid Origin and Putative Ancient Introgression in <i>Plantago hakusanensis</i> (Plantaginaceae).

ABSTRACT: Plantago hakusanensis (2n = 4x = 24) is an endangered endemic species that occurs in subalpine zones in Japan. To clarify the unresolved phylogenetic position of P. hakusanensis within subgenus Plantago, we constructed a phylogenetic tree based on the nuclear-encoded single-copy gene sucrose-proton symporter 1 (SUC1) using 60 previously reported alleles from 24 taxa in subgenus Plantago. We found that P. hakusanensis was closely related to Plantago asiatica var. densiuscula. The phylogenetic relationships between P. hakusanensis and P. asiatica var. densiuscula were further examined by analyses of the SUC1 nuclear regions and the internal transcribed spacer (ITS) of rDNA, genome-wide single-nu

SUBMITTER: Ishikawa N 

PROVIDER: S-EPMC11917114 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature