国家自然科学基金
National Natural Science Foundation of China
沙冬青(Ammopiptanthus mongolicus)是中国西北荒漠区唯一的常绿阔叶灌木,具有很强的抗寒抗旱特性。利用PCR方法从蒙古沙冬青中克隆到转录因子AmDREB2C的cDNA和基因组DNA的全长编码区,二者均由1191bp组成,无内含子序列,编码由396个氨基酸残基组成的蛋白,其中含1个AP2结构域和1个核定位信号。表达分析显示,AmDREB2C的转录受低温和干旱胁迫的诱导。此外,将该基因编码区cDNA成功构建到植物表达载体上,为后续研究其功能奠定了基础。
Ammopiptanthus mongolicus, the only evergreen broad-leaf shrub in the northwest desert of China, shows very strong resistance to cold and drought stresses. The complete coding region cDNA and genomic DNA fragments of the transcription factor AmDREB2C were cloned by PCR approach from A. mongolicus. Both the fragments contain 1191 base pairs, therefore AmDREB2C is intronless. The predicted AmDREB2C protein is composed of 396 amino acid residues, with a conserved AP2 domain and a nuclear localization signal. Expression analysis revealed that the transcription of AmDREB2C was induced by cold and drought stresses. Moreover, the cDNA fragment for AmDREB2C was successfully constructed into plant expression vector, laying a foundation for further functional analysis of this gene.
郭婷,王茅雁,董博,等.蒙古沙冬青AmDREB2C 基因的克隆及表达分析[J].植物遗传资源学报,2015,16(2):344-348.
复制