WU Zhen-Fang , LIU De-Wu , WANG Qing-Lai , ZENG Hai-Yu , CHEN Yao-Shen , ZHANG Hao
{"title":"Study on the Association Between Estrogen Receptor Gene (ESR) and Reproduction Traits in Landrace Pigs","authors":"WU Zhen-Fang , LIU De-Wu , WANG Qing-Lai , ZENG Hai-Yu , CHEN Yao-Shen , ZHANG Hao","doi":"10.1016/S0379-4172(06)60103-0","DOIUrl":null,"url":null,"abstract":"<div><p>To study the potential use of estrogen receptor gene (<em>ESR</em>) as a genetic marker to improve the reproductive traits of pigs, the genotypes of the <em>ESR</em> PCR product digested by <em>Pvu</em> II were determined in 2 239 litters from 612 Landrace sows. The data of the first, second, and later parities were separately evaluated. Although the frequency of the <em>B</em> allele was much lower than that of the <em>A</em> allele, likelihood ratio test showed that the gene frequencies were in Hardy-Weinberg equilibrium. The effects of <em>ESR</em> of different parities were not equal. In summary, the sows with the <em>BB</em> genotype showed better performance for total number of piglets born (TNB) and number of piglets born alive (NBA), but had a lower average piglet weight at birth (AWB). It was concluded that <em>ESR</em> could be used as a marker for the selection of litter size in the Landrace population.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 711-716"},"PeriodicalIF":0.0000,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60103-0","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Genetica Sinica","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0379417206601030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
To study the potential use of estrogen receptor gene (ESR) as a genetic marker to improve the reproductive traits of pigs, the genotypes of the ESR PCR product digested by Pvu II were determined in 2 239 litters from 612 Landrace sows. The data of the first, second, and later parities were separately evaluated. Although the frequency of the B allele was much lower than that of the A allele, likelihood ratio test showed that the gene frequencies were in Hardy-Weinberg equilibrium. The effects of ESR of different parities were not equal. In summary, the sows with the BB genotype showed better performance for total number of piglets born (TNB) and number of piglets born alive (NBA), but had a lower average piglet weight at birth (AWB). It was concluded that ESR could be used as a marker for the selection of litter size in the Landrace population.
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