ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (2): 320-326.doi: 10.11843/j.issn.0366-6964.2014.02.022

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Expression Analysis of Genes Related to Sexual Differentiation during the Early Development of Chicken-Quail Hybrid Embryos

LIU Xian-xia,FENG Xin-lu,ZHAO Zong-sheng*,LI Da-quan*,GAO Shu   

  1. (College of Animal Science and Technology,Shihezi University,Shihezi 832003, China)
  • Received:2013-08-22 Online:2014-02-23 Published:2014-02-23

Abstract:

This study aimed to detect expression of genes related to early embryonic development and sexual differentiation in the chicken-quail hybrids.First,the whole embryos were collected during the hybrid early embryonic development at different times(72,78,84,90,96,102,108,114,120,144,168 and 192 h).Then,based on the identification of early hybrid embryo sexes,Real-time PCR method was used to detect the expressions of sex differentiation associated genes (-HSDP-450c17,P-450arom and ER) during the embryonic development of male and female hybrids at different times.The results showed that in chicken-quail hybrid embryos,both of -HSD and ER genes expression in females were generally significantly higher than that in males.The lowest expression of -HSD occured at 72 h in male,while the highest expression occurred at 96 h in female and male embryos.Within 90 h,the gene expression level of the male and female hybrid embryos P-450c17 was higher,peaking at 78 h,and there were significantly differences(P<0.01) in females and males at each time point within 90 h.P-450arom hybrid embryo gene expression could be detected in females,but the expression of the males could not be detected.There were two peaks,respectively,at 72 and 108 h expression of ER gene in early hybrid embryonic development.

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