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广西广义山蚂蝗属部分种类的核型及染色体数目报道
高成芝; 邹畸丽;
1.广西中医药研究所;2.广西植物研究所
摘要:
本文分析了广义山蚂蝗属6种1变种的核型,并报道了9种1亚种的染色体数目。假地豆Desmodiumheterocarpon(L.)DC.,伏毛假地豆D.heterocorpo。(L.)DC.var.strigosumvanMeeuwen,单叶假地豆D.rubrum(Lour.)DC..金钱草D.styracifolium(Osbeck.)Merr.及假木豆Dendrolobiumtriangulare(Retz.)Schindl.的核型均为K(2n)=22=22m,属1A类型.但它们的染色体相对长度变化范围有一定的差异,假木豆的较大,假地豆的较小。舞草Codoriocalyxmotorius(Houtt.)Ohashi和圆叶舞草C.gyroides(Roxb.exLink.)Hassk.的核型为K(2n)=22=22m,有的细胞可见随体染色体,属1B类型.根据核型资料比较.作者发现狭义的舞草属比狭义的山蚂螟属和假木豆属较为进化。本文还报道大叶山蚂蝗DesmodiumlaxiflorumDC,波叶山蚂蝗D.sequaxWall.绒毛山蚂蝗D.velutinum(Willd.)DC,异叶山绿豆D.heteroph?
关键词:  广义山蚂蝗属(山蚂蝗属  假木豆属  舞草属  排钱草属  葫芦茶属)  核型  数目  
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