摘要
FSHR基因 5’端 (包括侧翼序列和第一外显子 )的限制性内切酶TaqⅠ的PCR -RFLP标记研究发现 ,在秦川牛中双胎母牛的A基因频率 (0 5 5 0 0 )和AA基因型频率 (0 5 0 0 0 )分别高于单胎母牛的A基因频率 (0 35 0 0 )和AA基因型频率 (0 30 0 0 ) ;在黑白花奶牛中双胎母牛的B基因频率 (0 5 937)和BB基因型频率 (0 6 875 )均高于单胎母牛的B基因频率 (0 5 4 16 )和BB基因型频率 (0 4 16 7) ,也就是FSHR基因的 5’端的PCR -RFLP标记在一个品种内单胎母牛和双胎母牛之间有一定趋势 ,但两个品种的趋势不同。
PCR-RFLP in FSHR gene 5' flanking region with exon 1 digested by restriction endonuclease TaqⅠdemonstrated that the frequencies of allele A (0.5500) and genotype AA (0.5000) in twinning cows were higher than that of allele A (0.3500) and genotype AA (0.3000) in monovular cows for Qinchuan cattle, while The frequencies of allele B (0.5937) and genotype BB(0.6875) in twinning cows were higher than that of allele B (0.5416) and genotype BB (0.4167) in monovular cows for Holstein cattle.
出处
《中国农学通报》
CSCD
2003年第4期7-10,共4页
Chinese Agricultural Science Bulletin
基金
国家 8 6 3计划项目 (2 0 0 1AA2 430 5 2 )
西北农林科技大学专项基金项目
中华农业科教基金(99-0 3-A -5 )
