Hedysarum L. (Fabaceae: Hedysareae) Is Not Monophyletic – Evidence from Phylogenetic Analyses Based on Five Nuclear and Five Plastid Sequences

• DOI: 10.1371/journal.pone.0170596
• Publication Date: 2017-01-25T19:11:25Z
• Authors: Pei-Liang Liu; Jun Wen; Lei Duan; Emine Arslan; Kuddisi Ertuğrul; Zhao-Yang Chang
• Keywords: Monophyly

The legume family (Fabaceae) exhibits a high level of species diversity and evolutionary success worldwide. Previous phylogenetic studies the genus Hedysarum L. (Fabaceae: Hedysareae) showed that nuclear plastid topologies might be incongruent, systematic position sect. Stracheya clade was uncertain. In this study, relationships were investigated based on ITS, ETS, PGDH, SQD1, TRPT psbA-trnH, trnC-petN, trnL-trnF, trnS-trnG, petN-psbM sequences. Both data support two major lineages in Hedysarum: s.s. Sartoria clade. tree, is biphyletic with sister to Corethrodendron + Eversmannia Greuteria Onobrychis (the CEGO clade), whereas Taverniera DC. monophyletic Taverniera. incongruent between trees may best explained by chloroplast capture hypothesis via introgression. resolved as H. both trees, our analyses merging into Hedysarum. Based new evidence from multiple sequences, not monophyletic, its generic delimitation needs reconsidered.