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Expression and Polymorphism of FSHR Gene in Sheep with Different Fecundity

Expression and Polymorphism of FSHR Gene in Sheep with Different Fecundity

Xiaoyun He1, Yongfu La2, Jinxin Wang1, Ran Di1, Qiuyue Liu1, Xiangyu Wang1, Wenping Hu1 and Mingxing Chu1*

1Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
2College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
Xiaoyun He and Yongfu La contributed equally to this article.

*      Corresponding author:


Follicle-stimulating hormone (FSH) is the pituitary hormone that regulates gonadal function by Hypothalamic-Pituitary-Gonadal Axis (HPGA) in vertebrates. FSHR has the function of transmitting follicle-stimulating growth biological information in animal breeding activities. In this study, we analyzed the structure of FSHR gene’s promoter, expression regulation and the correlation between polymorphism with fecundity. The results show that it is highly possible that the promoter of FSHR gene is in the region of 2045-2295bp and 2038-2288bp, TATA box was also found there. The expression differences were found in oviduct during every stage of estrous cycle (P<0.05) between Small Tail Han (STH) sheep and Tan (T) sheep. There were significant differences in genotype distribution between STH sheep and T sheep at T1235C and AG2357-2358 CT sites (P<0.01). The results of haplotypes analysis indicated that H2, H7 were preponderant haplotype in high prolificacy sheep breed. The litter size of TT genotype was significantly higher than that in CC genotype at T1235C loci in STH sheep (P<0.05). The current study provides evidence in sheep for genetic markers that might be used in breeding program. 

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Pakistan Journal of Zoology


Vol. 54, Iss. 6, Pages 2501-3000


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