Phylogeny and taxonomy of the polyploid species that contain St genome (Triticeae; Poaceae) based on four nuclear DNA and three chloroplast genes.

ABSTRACT:

Background

The genus Pseudoroegneria (Nevski) Á.Löve contributes the St genome for more than 60% of perennial Triticeae species. However, the strong dominant character of the St genome makes it challenging to distinguish each species and/or even genus based on single or combined morphological traits. Moreover, the phylogeny and taxonomy of the St-genome containing polyploid genera remain controversial.

Results

In this study, we used nuclear and chloroplast DNA-based phylogenetic analyses to reveal the systematic relationships between the St-genome containing polyploid species. The maximum likelihood (ML) tree based on nuclear ribosomal internal transcribed spacer region (nrITS) and three single-copy nuclear genes data (Acc1 + Pgk1 + DMC1) showed that polyploid species with t

SUBMITTER: Pan X 

PROVIDER: S-EPMC11817382 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature