›› 2015, Vol. 42 ›› Issue (2): 370-374.doi: 10.16431/j.cnki.1671-7236.2015.02.021

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Study on Expression and Localization of Kiss-1 Gene in Different Developmental Stages of Wuzhishan Pig Testis

XUN Wen-juan, CAO Ting, ZHOU Han-lin, HOU Guan-he, SHI Li-guang   

  1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
  • Received:2014-07-15 Online:2015-02-20 Published:2015-02-13

Abstract: The research aimed to study the expression of Kiss-1 in different developmental stages of Wuzhishan pig testis.The expression of Kiss-1 mRNA in 30,60,80 and 120 day-old Wuzhishan pig testis were studied using Real-time PCR.Cellular localization of Kiss-1 in testis was examined by immunohistochemistry.The results showed that the expression of Kiss-1 mRNA was increased with the age before puberty (P<0.05),and reached the highest level in 80-day-old testis (P<0.05),then decreased at 120 days of age (P<0.05).There was a positive expression of Kiss-1 in interstitial tissue,spermiogonium,primary spermatocyte,second spermatocyte,and round spermatid of adult Wuzhishan pig testis.However,the Kiss-1 immunopositive production was not found in sperm.The results confirmed that Kiss-1 gene played important role in spermatogenesis of Wuzhishan pig.

Key words: Kiss-1; Wuzhishan pig; testis; Real-time PCR; immunohistochemistry

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