摘要
用银染技术对中国４个地方黄牛品种（蒙古牛、秦川牛、岭南牛和西镇牛）４０头的Ａｇ－ＮＯＲ，作了比较研究。结果表明，蒙古牛、秦川牛和岭南牛每细胞Ａｇ－ＮＯＲ，数变化范围为３～１０个，西镇牛为２～１０个，平均分别为５．８１８±０．５１３，５．４７３±０．３１６，５．３７７±０．２７９和５．１７８±０．３５４．Ａｇ－ＮＯＲ，表现了细胞、个体和品种间的多态性。
Ag-NOR_s of four native cattle breeds(Mongolian,Qinchuan , Lingnan andXizhen cattle)in China with total number of 40 cattles were studied comparatively by sil-ver staining technique. The results showed that the Ag-NOR_s number of each cell ofMongolian,Qinchuan and Lingnan breeds varied from 3～10,and Xizhen breed from 2～10. The average Ag-NOR_s number of Mongolian , Qinchuan , Lingnan and Xizhen breedswere 5. 818±0. 513,5. 473±0. 316,5. 377±0. 279 and 5. 178±0. 354 respectively.Therewas Ag-NOR_s polymorphism among cells,individuals and breeds.
出处
《西北农业大学学报》
CSCD
1994年第4期18-22,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
关键词
多态性
黄牛
AG-NOR
品种
nucleolus organizer region(NOR_s),polymorphism ,cattle
