企鹅珍珠贝Sox9基因的克隆及表达分析Molecular Cloning and Expression Analysis of Sox9 Gene from Pteria penguin
许开航,王梅芳,余祥勇,于非非,林丹丹,郑煜东,李启辉,万绮娟,陈荣娴
摘要(Abstract):
【目的】更好地了解企鹅珍珠贝性别转换机制。【方法】RACE-PCR技术克隆企鹅珍珠贝Sox9基因cDNA的全长序列,分析其理化性质和进化地位;荧光定量PCR技术分析Sox9基因在各组织及不同时期性腺中的表达特征。【结果与结论】Sox9基因cDNA序列全长2 267 bp,其中开放阅读框(ORF)为1 410 bp,编码469个氨基酸。氨基酸序列比对显示企鹅珍珠贝Sox9基因与黑蝶真珠蛤(Pinctada margaritifera)和马氏珠母贝(Pinctada fucata)有高度同源性(>81%)。Sox9在企鹅珍珠贝各组织中均有表达,在足中表达量最高(P<0.05),精巢中其次;Sox9在成熟期精巢检测到最大表达量(P<0.05),在发育早期精巢、退化期精巢和成熟期卵巢中表达量较低,其中发育早期卵巢表达量最低(P<0.05)。
关键词(KeyWords): 企鹅珍珠贝;Sox9;PCR;基因克隆
基金项目(Foundation): 广东省科技发展专项(2016A020210115);; 广东省渔港建设和渔业发展专项(B201601-Z08,Z2014005);; 广东海洋大学博士科研启动项目(E15041);广东海洋大学创新强校重点课题(GDOU2016050248)
作者(Author): 许开航,王梅芳,余祥勇,于非非,林丹丹,郑煜东,李启辉,万绮娟,陈荣娴
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