Association Between PCR-SSCP of Bone Morphogenetic Protein 15 Gene and Prolificacy in Jining Grey Goats
- 10 October 2007
- journal article
- research article
- Published by Informa UK Limited in Animal Biotechnology
- Vol. 18 (4), 263-274
- https://doi.org/10.1080/10495390701331114
Abstract
The Jining Grey is a prolific local goat breed in P.R. China. Bone morphogenetic protein 15 (BMP15) gene that controls high fecundity of Inverdale, Hanna, Lacaune, Belclare, Cambridge, and Small Tailed Han ewes was studied as a candidate gene for the prolificacy of Jining Grey goats. According to the sequence of ovine BMP15 gene, six pairs of primers were designed to detect single nucleotide polymorphisms in exon 1 and exon 2 of the BMP15 gene in both high fecundity breed (Jining Grey goats) and low fecundity breeds (Boer, Liaoning Cashmere, and Inner Mongolia Cashmere goats) by single strand conformation polymorphism (SSCP). Two pairs of primers (F1/R1 and F2/R2) were used to amplify the exon 1. Four pairs of primers (F3/R3, F4/R4, F5/R5, and F6/R6) were used to amplify the exon 2. Only the products amplified by primer F5/R5 displayed polymorphism. Results indicated that two genotypes (AA and AB) were detected in prolific Jining Grey goats and only one genotype (AA) was detected in low fecundity goat breeds. In Jining Grey goats frequencies of genotypes AA and AB were 0.10 and 0.90, respectively. Sequencing revealed two point mutations (G963A and G1050C) of BMP15 gene in the AB genotype in comparison to the AA genotype. In Jining Grey goats the heterozygous AB does had 1.13 (p < 0.01) kids more than the homozygous AA does. These results preliminarily showed that the BMP15 gene is either a major gene that influences the prolificacy of Jining Grey goats or a molecular genetic marker in close linkage with such a gene.Keywords
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