棉花学报   Cotton Science      2005,17(5):259-263

 

棉花纤维特异表达基因 GhF1 的分离及鉴定
孙 杰1,2,李艳军2,李园莉1,汪若海3
(1. 中国科学院微生物研究所,北京 100080;2. 新疆石河子大学农学院,
新疆兵团绿洲生态农业重点实验室,新疆石河子 832000;3. 中国农业科学院棉花研究所,
农业部棉花遗传改良重点开放实验室,河南 安阳 455000) 

摘要:采用mRNA荧光差异显示结合cDNA末端快速扩增技术,克隆了一个棉纤维特异表达基因的全长cDNA,命名为GhF1,该cDNA全长622 bp,含有一个编码66个氨基酸蛋白的开放阅读框。Southern杂交分析表明该基因在陆地棉(Gossypium hirsutum L.)中含有两个拷贝。Northern杂交分析表明该基因在棉花纤维细胞特异表达,在纤维发育过程中,GhF1转录产物的累积主要发生在纤维细胞发育的早期阶段。尽管未发现该基因与已知基因有任何同源性,但其分布的组织特异性和表达的发育阶段性暗示该基因在纤维伸长中起作用。
关键词:棉花;纤维特异基因;Northern杂交
中图分类号:S562.035.3        文献标识码:A
文章编号:1002-7807(2005)05-0259-05    [全文,2234KB]

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