›› 2010, Vol. 37 ›› Issue (2): 104-107.

• 遗传繁育 • 上一篇    下一篇

石歧杂鸡催乳素基因外显子2的SNP检测与产蛋就巢性状的关联分析

曹顶国,李福伟,雷秋霞,韩海霞,周艳,李桂明,黄保华,逯岩   

  1. (山东省农业科学院家禽研究所 山东省家禽育种工程技术中心, 济南 250023)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-02-20 发布日期:2010-02-20

SNP Detection of Exon 2 of PRL Gene and its Associationswith Egg-laying and Broodiness Traits in Shiqiza Chicken

CAO Ding-guo,LI Fu-wei,LEI Qiu-xia,HAN Hai-xia,ZHOU Yan,
LI Gui-ming,HUANG Bao-hua, LU Yan
  

  1. (Institute of Poultry,Shandong Academy of Agricultural Sciences,Jinan 250023,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-20 Published:2010-02-20

摘要: 摘要:利用PCR-SSCP技术对石歧杂鸡的催乳素(prolactin,PRL)基因外显子2进行SNP检测和测序分析,并对该基因与石歧杂鸡产蛋、就巢性状的相关性进行了研究。结果表明,PRL基因外显子2存在多态性位点,该位点由于在3838位点发生C→T的碱基突变,产生了AA、AB和BB 3种基因型,并导致氨基酸的改变,由亮氨酸变为苯丙氨酸。基因型AA和等位基因A的频率最高;BB基因型个体首次就巢时间显著晚于AA和AB基因型(P<0.01);BB基因型的就巢次数显著多于AA和AB基因型(P<0.05);3种基因型与产蛋性状相关性不显著。

关键词: 关键词PRL基因; PCR-SSCP; 石歧杂鸡; 就巢性状

Abstract: Abstract: Exon 2 of prolactin gene were detected by PCR-SSCP and the DNA fragments were sequenced.The correlation analysis between the polymorphism of the exon 2 and egg-laying and broodiness traits were carried out respectively.The results indicated that there were two polymorphic sites in exon 2.A C/T mutation at the position of the 3838 bp was found,which resulted in 3 genotypes(AA,AB and BB).Furthermore,an amino acid changed from Leucine to Phenylalanine. The frequencies of genotype AA and allele A were the highest.The least square analysis showed that the first broodiness day of BB type chickens was later than AA and AB type chickens (P<0.01), the times of broody of BB chickens were more than AA and AB type(P<0.05). But there was no significant difference in egg production among the 3 genotypes.

Key words: Key words: prolactin gene; PCR-SSCP; Shiqiza; broodiness traits