猪乳头数性状遗传育种的研究进展  

Research Progress on Genetic Breeding of Teat Number Traits in Pigs

作　　者：王露露 邢凯 杨森 许璇 赵欢 李航 赵希桐 王楚端[1] WANG Lulu;XING Kai;YANG Sen;XU Xuan;ZHAO Huan;LI Hang;ZHAO Xitong;WANG Chuduan(College of Animal Science and Technology,China Agricultural University,Beijing 100193,China;College of Animal Science and Technology,Beijing University of Agriculture,Beijing 102206,China;Pig Research Institute,Beijing Shunxin Agricultural Co.Ltd.,Beijing 101300,China)

机构地区：[1]中国农业大学动物科学技术学院,北京100193 [2]北京农学院动物科学技术学院,北京102206 [3]北京顺鑫农业股份有限公司养猪研究院,北京101300

出　　处：《中国畜牧杂志》2023年第8期7-12,共6页Chinese Journal of Animal Science

摘　　要：在猪生产中,需要保证母猪足够的猪乳头数以满足仔猪营养需要。乳头数是一个受微效多基因控制的具有品种特性的数量性状,影响仔猪的断奶成活率、断奶窝重及窝均匀度,解析其遗传机制对于选育优良种猪具有重要意义。近年来有许多研究一直关注于猪乳头数性状的改良,相关的分子标记和候选基因被相继报道。本文主要对猪乳头数与数量性状之间的联系、影响乳头数的因素以及QTL定位和GWAS鉴别候选基因等方面的研究进展进行综述,为后续乳头数的选育提供理论基础。It is necessary to ensure that the sow has sufficient teat number to meet the nutritional needs of the piglets in pig production.Teat number is a breed-specific quantitative trait controlled by micro-effective multiple genes,which affects the weaning survival rate,weaning litter weight and litter uniformity of piglets,and the analysis of its genetic mechanism is of great importance for the selection of excellent breeding pigs.In recent years,many studies have been focused on the improvement of pig teat number traits,and related molecular markers and candidate genes have been reported one after another.This paper mainly discusses the linkage between teat number and quantitative traits,factors affecting teat number,and the progress of QTL localization and GWAS identification of candidate genes,which provide a theoretical basis for subsequent selection and breeding of teat number.

关 键 词：乳头数 功能性乳头数 QTL GWAS 猪 

分 类 号：S828.2[农业科学—畜牧学]