Reassessing the phylogenetic relationships of <i>Pseudosorghum</i> and Saccharinae (Poaceae) using plastome and nuclear ribosomal sequences.

ABSTRACT: The sugarcane subtribe Saccharinae (Andropogoneae, Poaceae) was established in 1846, but its delimitation has long been debated. Moreover, the relationships among the genera of Saccharinae remain unclear, and there is no consensus on whether Pseudosorghum, a small genus in tropical Asia with only two species, should be included. Here, we performed phylogenomic analyses using whole plastomes (69 of them newly sequenced) from 132 individuals, representing 65 species in 19 related genera. We also built trees with nuclear ribosomal DNA sequences. Our results justify the inclusion of Pseudosorghum, likely also the Eulalia Clade III, in Saccharinae. Furthermore, both morphological and molecular analyses support merging the two Pseudosorghum species. The backbone relat

SUBMITTER: Chen K 

PROVIDER: S-EPMC12146866 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature