FSHβ subunit gene is associated with major gene controlling litter size in commercial pig breeds |
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| Authors: | ZHAO YaofengLI Ning XIAO Lu CAO GengshengCHEN YizhenZHANG ShunCHEN YongfuWU ChangxinZHANG JianshengSUN Shiquan XU Xueqing |
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| Institution: | (1) State Key Laboratories for Agrobiotechnology, China Agricultural University, 100094 Beijing, China;(2) Changshu Livestock Breeding Experimental Farm, 215500 Changshu, China |
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| Abstract: | An insertion fragment in porcine FSHβ subunit gene was cloned by PCR. Sequencing data show that the insertion is a retroposon
of 292 bp siting in intron I at the site between + 809 and +810 base. Based on these results, a PCR programme was created
to genotype animal individuals in different pig breeds at FSW locus and polymorphism of FSHP gene was analyzed. With the combination
of genotype and litter size of sows, it was demonstrated that FSHβ locus is closely associated with major gene controlling
litter size in commercial pig breeds, such as Yorkshire, Landrace, Durco. Averagely the AA sows give more 1.5 piglets than
BB sows do per litter. |
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| Keywords: | FSHβ subunit gene litter size major gene candidate gene approach |
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