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Articles by Huang Xi-Xia
Total Records ( 2 ) for Huang Xi-Xia
  Liu Wu-Jun , Fang Guang-Xin , Fang Yi , Tian Ke-Chuan , Huang Xi-Xia , Yao Xin-Kui , Wang Mou , Yu Hui , Huang Yong-Zhen , Xin Jing-Jing , Xin Ya-Ping , Yu Shi-Gang and Chen Hong
  Searching for effects of candidate gene polymorphisms on cashmere production traits is an important goal for goat industry. Genetic variations in IGF-1 may alter protein function. This study investigated the association between polymorphisms in insulin-like growth factor-1 (IGF-1) and cashmere traits data with two Xinjiang local goat breeds. The results showed IGF-1-P1 locus has polymorphisms. The polymorphism locus of IGF-1-P1 by PCR-RFLP and DNA sequencing methods in 530 individuals from two Xinjiang local goat breeds in China. The frequencies of genotype AA in two goat breeds (Xinjiang goat, Nanjiang cashmere goat) were 0.487 and 0.277. Genotype BB was 0.274 and 0.486. Genotype AB was 0.239 and 0.236. The polymorphisms of the IGF-1 gene were associated with cashmere yield, fiber diameter, body weight in cashmere goat. However, concern on cashmere production traits among three genotypes were shown not significantly (p>0.05).
  Liu Wu-Jun , Wang Qiong , Huang Xi-Xia , Yu Shi-Gang and Tian Ke-Chuan
  Keratin Intermediate-Filament (KIF) proteins form the main structural elements of a wool fibre. In this study, PCR-RFLP and DNA sequencing methods were used to detect polymorphisms of KIF-1 gene in 786 samples of 3 Xinjiang local goat breeds (Xinjiang, Nanjiang Cashmere and Bogeda Cashmere goat). The results showed that KIF-1-P3 locus has polymorphisms. The frequencies of genotype AA were 0.675, 0.577 and 0.766, genotype AB were 0.296, 0.400 and 0.234, genotype BB were 0.030, 0.023 and 0.000 for Xinjiang, Nanjiang Cashmere and Bogeda Cashmere goat breeds, respectively. The genotypic distributions were in disagreement with Hardy-Weinberg equilibrium in Nanjiang Cashmere goat breed. In addition, the mutation was detected at KIF-1-P3 locus by DNA sequencing method, a novel of SNP was revealed in exon 3 (Genebank M23912: c.3212 C>T) and it belongs to synonymous mutation. However, there is no significant difference in Xinjiang goat breed between polymorphisms of the KIF-1 gene and cashmere production traits (fineness, thickness, yield and body weight after combing). Moreover, analysis of variance indicated that various genotypes in the 3 Xinjiang goat breeds were highly significant (p<0.01).
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