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Animal Science Papers and Reports

Polymorphisms in exons of the IGFBP-1 gene and their associations with body weight in the Jinghai Yellow chicken

Xiuhua Zhao
College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Abstract :
Thie study aimed at comparing polymorphisms in exons of the
gene encoding insulin-
like growth factor binding protein-1 among three chicken breeds and analysing the associations
between its genotypes and body weight traits in the Jinghai Yellow chicken. Three mutations
(A2276T, T2359C and T5550C) and one insertion/deletion (the inserted/deleted AAT after position
5692bp) were detected in three chicken breeds. The general linear model analysis showed that the
Jinghai Yellow chickens with BB and AB genotypes at the position 2276 (A2276T transversion) had
significantly higher body weight than those of AA genotype (P<0.05 or P<0.01) at week 4, 8, and 16
of age. Moreover, BB genotype had significantly higher body weight at week 12 of age than those of
AB genotype (P<0.01). The B allele had a positive effect on body weight traits.
Keywords :
inghai Yellow chicken / IGFBP-1 gene / polymorphism / body weight traits

Date Deposited : 02 Apr 2015 09:42

Last Modified : 02 Apr 2015 09:42

Official URL:

Volume 31, Number 1, - 2013

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