生物
索引
PRNP公司
遗传学
等位基因
基因座(遗传学)
牛海绵状脑病
连锁不平衡
等位基因频率
INDEL突变
繁殖
基因
单倍型
基因型
单核苷酸多态性
朊蛋白
疾病
医学
病理
作者
Eden Yitna Teferedegn,Hüseyin Can,Sedef Erkunt Alak,Cemal Ün
标识
DOI:10.1080/10495398.2022.2058007
摘要
Susceptibility to classical bovine spongiform encephalopathy (BSE) has been linked to 23 bp indel in promoter and 12 bp indel in the first intron of cattle prion protein gene. This study aimed to investigate 23/12 bp indel polymorphisms in the polymorphisms in cattle prion protein (PRNP) gene to reveal the risk of BSE in Ethiopian cattle. Also, frequency of each polymorphism was compared to the other Bos taurus and Bos indicus breeds. According to results, the insertion variant was detected at a low frequency in all of the study populations at both loci. The 23 bp insertion allele in Fogera breed was relatively lower than Borona and Arsi and the same allele at the same locus in Afar breed was higher than the rest of the breeds (0.16). Due to high linkage disequilibrium (LD) of the deletion allele in Bos taurus, the frequencies of deletion allele at 23 bp (0.84) and 12 bp (0.86) loci in Afar breed were relatively closer than the rest of the breeds. In addition, DD/DD was found as the highly frequent diplotype in all of the breeds. The low frequency of insertion alleles at 23 and 12 bp indel sites demonstrate that Ethiopian cattle have a genetically high risk for BSE.
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