猪乳头性状生理学和遗传学研究进展

doi:10.16288/j.yczz.18-336

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Hereditas(Beijing) ›› 2019, Vol. 41 ›› Issue (5): 384-390.doi: 10.16288/j.yczz.18-336

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Physiology and genetics research progress of teat traits in pigs

Lisheng Zhou,Weimin Zhao,Feng Tu,Yunhe Wu,Shouwen Ren,Xiaomin Fang()

Jiangsu Germplasm Resources Protection and Utilization Platform, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China

Received:2018-12-12 Revised:2019-04-22 Online:2019-05-20 Published:2019-05-11
Contact: Fang Xiaomin E-mail:363927739@qq.com
Supported by:
National Pig Industrial Technology System Nanjing Experimental Station(CARS-35);Jiangsu Agricultural Major New Breed Creation Project(PZCZ201733);Special Scientific Research Fund of Jiangsu Academy of Agricultural Sciences(ZX(18)7006);Jiangsu Post-doctoral research Funding(2018K059B)

Abstract

Abstract:

The pig teat traits are important indices of genetic improvement in pig breeding, which belong to reproductive traits and can directly affect the sows lactation rate and piglet survival rate. Understanding the genetic mechanism underlying the variation of teat traits is of immense value for the improvement of pig reproductive performance. However, the genetic mechanism underlying teat traits (including teat number, type, location distribution, and fluctuating asymmetry) remains elusive. In this review, we summarize the studies on physiology and genetics of teat traits in pigs, including the development process of the mammary gland, the QTL mapping, and candidate gene researches. This review aims to provide a new perspective for the identification of causal mutations and major genes affecting the teat traits and revealing the complex genetic mechanism of the differences in teat number, type and location distribution during embryonic development in pigs.

Key words: pig, teat traits, genetic research

Lisheng Zhou, Weimin Zhao, Feng Tu, Yunhe Wu, Shouwen Ren, Xiaomin Fang. Physiology and genetics research progress of teat traits in pigs[J]. Hereditas(Beijing), 2019, 41(5): 384-390.

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