中药黄芪原植物的分子遗传学研究及其分类地位探讨

A taxonomic study on the original plant of Radix Astragali

摘要:
中药黄芪原植物膜荚黄芪Astragalus membranaceus (Fisch.) Bge、蒙古黄芪A. membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao.和淡紫花黄芪A. pallidipurpureus stat. nov的分类学地位至今仍然存在一定的争议。通过分子生物学实验对三者的叶绿体trnH-psbA序列进行了比较研究, 结果表明, 三者在DNA分子水平上存在差异。结合形态特征考察, 建议将淡紫花黄芪作为独立的种处理。

Abstract:
There are dispute about the status of taxonomy among Astragalus membranaceus (Fisch.) Bge, A. membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao. and A. pallidipurpureus stat. nov. The varieties and taxa of the complex are still in need of revision. With molecular biology study used trnH-psbA intergenic region, the taxonomic revision of Radix Astragali has been made. A.pallidipurpureus stat. nov is suggested as a new species.