4Wei,X.; Zhang,J.; Li,J.; et al.Astragalus mongholicus and Polygonum multiflorum's protective function against cyclophosphamide inhibitory effect on thymus.Am.J.Chinese Med,2004,32:669-680.
5Aaron Liston,Variation in the Chloroplast Genes rpoCI and rpoC2 of the Genus Astragalus (Fabaceae):Evidence from Restriction Site Mapping of a PCR-Amplified Fragment.Am J Bot,1992,79(8):953-961.
6Cheng KT,Su BC,Chen CT,et al.RAPD analysis of Astragalus medicines marketed in Tai Wan.Am J Chin Med,2000,28:273-278.
7Wojciechowski M F,Sanderson M J,Baldwin,B G,et al.Monophyly of aneuploid astragalus (Fabaceae):Evidence from nuclear ribosomal DNA internal transcribed spacer sequences.Am J Bot,1993,80:711.
8Ma XQ,Duan JA,Zhu DY,et al.Species identification of Radix Astragali (Huangqi) by DNA sequence of its 5SRNA spacer domain.Phytochemistry,2000,54:363-368.
9Tina T.X.Dong,Xiao Q.Ma,Claries Clarke,et al.Phytogeny of Astragalus in China:molecular evidence from the DNA sequences of SS rRNA spacer,ITS,and 18S rRNA.Journal of Agricultural and Food Chemistry,2003,51(23):6709-6714.
10Maddison,D.R.,Schulz,K.S.,Maddison,W.P.The Tree of Life Web Project.Zootaxa,2007,1668:19-40.
