九子母属Dobinea Buch.-Ham.ex D.Don是一个东亚特有属,包含贡山九子母D.vulgaris Buch.-Ham.ex D.Don和羊角天麻D.delavayi(Baill.)Baill.两种,主要分布于中国西南地区。有关九子母属的系统位置长期存在争议,不同的学者曾将其归入漆树科Anacardiaceae、无患子科Sapindaceae和九子母科Podoaceae。本文基于rbcL和ITS探讨了其系统位置,结果表明,九子母属的两个种自成单系,并且是漆树科的成员。
Dobinea Buch.-Ham. ex D. Don, a genus with two species endemic to east Asia, has been placed in three different families, the Podoaceae, tribe Acerineae of the Sapindaceae, and tribe Dobineeae of the Anacardiaceae. In this paper, phylogenetic relationships of the genus were examined based on DNA sequences of the chloroplast rbcL gene and the ITS region of nuclear ribosomal DNA. Our data support the monophyly of Dobinea and its placement in the Anacardiaceae.