文献类型: 外文期刊
作者: Zhou Rong 1 ; Yang Ya-lan 2 ; Liu Ying 2 ; Chen Qi-mei 3 ; Chen Jie 1 ; Li Kui 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Anim Sci & Technol, Dept Anim Genet Breeding & Reprod, Nanjing 210095, Jiangsu, Peoples R China
2.Chinese Acad Agr Sci, Inst Anim Sci, Minist Agr, Key Lab Farm Anim Genet Resources & Germplasm Inn, Beijing 100193, Peoples R China
3.Shandong Lansi Seeds Ind Co Ltd, Rizhao 276800, Peoples R China
关键词: CYP19A1;pig;reproduction;birth weight;single nucleotide polymorphism
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2017 年 16 卷 7 期
页码:
收录情况: SCI
摘要: Porcine reproductive traits are characterized by low heritability, making improvement by traditional selective breeding rather difficult. Molecular breeding offers powerful approaches to overcome previous limitations and is expected to generate economic benefits via progress in pig breeding. Cytochrome P450 family 19 subfamily A polypeptide 1 (CYP19A1) gene is a key enzyme of estradiol biosynthesis that plays an important role in the establishment of gestation and maintenance of pregnancy. In this study, the sequence and structure characteristics of the porcine CYP19A1 gene was analyzed and expression patterns of CYP19A1 in different tissues of adult female pigs were detected. Fourteen single-nucleotide polymorphisms (SNPs) in the exons and introns of porcine CYP19A1 were identified and genotyped using the Sequenom MassARRAY platform, after which the allele frequency of each SNP was analyzed. The association between CYP19A1 SNPs and litter size and piglet birth weight was assessed in a crossbred pig population (n=375). The expression pattern of CYP19A1 revealed that it was highly expressed in the ovary, spleen, and uterus and lowly expressed in the other tissues. Moreover, one SNP, rs341891833, was significantly associated with piglet birth weight during the multiparity period (P<0.01). We concluded that CYP19A1 could be used as a candidate molecular marker in breeding aimed at rapid improvement of the reproductive characteristics of pigs.
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