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梅花PmCBFa基因的克隆与序列分析 被引量:1

Cloning and sequence analysis of PmCBFa gene from Prunus mume
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摘要 为了找到梅花抗寒关键基因,进一步了解梅花的抗寒分子机理,在分析了NCBI核苷酸数据库中已公布的CBF/DREB1同源基因序列基础上,通过基因同源克隆结合RACE技术,在‘雪梅’花蕾cDNA文库以及‘雪梅’gDNA中均成功扩增得到梅花的1个CBF/DREB1类基因,命名为PmCBFa。该基因CDS区全长845bp,编码231个氨基酸。经核苷酸序列分析、预测编码氨基酸序列比对分析以及编码蛋白系统进化树分析表明,该基因编码的蛋白具有CBF/DREB1类转录因子保守的AP2结构域及其两翼结构序列,且与桃的DREB1同源蛋白同源性最高。该研究结果为后续PmCBFa基因在梅花抗寒分子机理的研究中提供了理论依据,为梅花抗寒育种开辟了新的途径。 为了找到梅花抗寒关键基因,进一步了解梅花的抗寒分子机理,在分析了NCBI核苷酸数据库中已公布的CBF/DREB1同源基因序列基础上,通过基因同源克隆结合RACE技术,在‘雪梅’花蕾cDNA文库以及‘雪梅’gDNA中均成功扩增得到梅花的1个CBF/DREB1类基因,命名为PmCBFa。该基因CDS区全长845bp,编码231个氨基酸。经核苷酸序列分析、预测编码氨基酸序列比对分析以及编码蛋白系统进化树分析表明,该基因编码的蛋白具有CBF/DREB1类转录因子保守的AP2结构域及其两翼结构序列,且与桃的DREB1同源蛋白同源性最高。该研究结果为后续PmCBFa基因在梅花抗寒分子机理的研究中提供了理论依据,为梅花抗寒育种开辟了新的途径。
出处 《北京林业大学学报》 CAS CSCD 北大核心 2012年第S1期35-39,共5页 Journal of Beijing Forestry University
基金 国家自然科学基金项目(31070624)
关键词 梅花 CBF/DREB1 基因克隆 序列分析 Prunus mume CBF/DREB1 gene cloning sequence analysis
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参考文献13

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