四种豆科牧草的染色体核型分析

KARYOTYPE ANALYSIS OF CHROMOSOME OF FOUR SPECIES LEGUMINOUS HERBAGE

运用常规的根尖细胞压片法，对４种豆科牧草的染色体数目、核型进行了研究。建立的核型公式如下：伊犁苜蓿为２ｎ＝３２＝２８ｍ＋４Ｓｍ，黄花苜蓿为２ｎ＝３２＝３２ｍ，扭果苜蓿为２ｎ＝３２＝８ｍ＋４Ｓｍ，百脉根为２ｎ＝１２＝１０ｍ＋２Ｓｍ。

Using the method of pressing root tip cells, the chromosomal numbers and karyotype of four leguminous grasses were studied. The karyotype formula was:Medicago subdicycla is 2n=32=28m+4Sm, M.falcata is 2n=32=32m,M.schishkinii is 2n=32=28m+4Sm,Lotus corniculatus is 2n=12=10m+4Sm.