TY - JOUR T1 - Allelic Polymorphism Identified and Analysis on the Fifth Exon of Chinese Indigenous Donkey GH Gene by PCR-SSCP AU - Zhu, Wenjin AU - Su, Yongmei AU - Liu, Yanfang AU - Guan, Xuemin AU - Ni, Jing AU - Wu, Jianhua JO - Journal of Animal and Veterinary Advances VL - 11 IS - 20 SP - 3713 EP - 3716 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.3713.3716 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.3713.3716 KW - Donkey KW -GH gene KW -exon3 KW -polymorphism KW -PCR-SSCP AB - Growth of animal is largely regulated by Growth Hormone (GH). In this study the objective was to investigate variations in the fifth exon of GH gene and their polymorphism in 5 Chinese indigenous donkeys by PCR-SSCP and DNA Sequencing Methods. The results showed that there was a transversion at nucleotide position 1802 of GH gene in the 5th exon named as GH-exon5-G1802C which led to a conservative Lysine to Asparagine substitution at amino acid position 205. In detail, two different alleles, A and B were identified and three genotypes were observed, AA, AB and BB with the frequency distribution of allele B from 0.5962-0.7344 in analyzed populations. The genetic diversity analysis revealed that all PIC values were between 0.3140 and 0.3656, implying that this locus within GH gene possessed moderate genetic diversity in 5 Chinese indigenous donkeys. The χ2-test showed that GZ donkey was significant deviation, DZ donkey was no significant deviation from Hardy-Weinberg equilibrium, GL, JN and XJ donkey was not in agreement Hardy-Weinberg equilibrium. The results confirmed that there were polymorphisms in the exon 5 of GH gene. ER -