The invention relates to cotton GhAS1 gene, GhAS1 protein, recombinant vector, recombinant bacteria and their applications, and belongs to the field of genetic engineering technology. The full-length cDNA of GhAS1 gene in cotton by RACE, and it is found that it has 67% similarity to the Arabidopsis AtAS1 gene; protein sequence and the gene encoding, the conserved DNA binding domain and calcium binding domain with AtAS1 of Arabidopsis and Antirrhinum, corn and wheat PHAN RS2 WRS2 has a high degree of homology. GhAS1 gene was transformed into Arabidopsis mutant AS1 101 transgenic plants, transgenic plants were found on the cotton GhAS1 gene can restore the phenotype of the Atas1 mutant defects, can promote transgenic plant trichome development, and has improved the function of plant resistance to salt stress.
【技术实现步骤摘要】
棉花GhAS1基因、GhAS1蛋白、重组载体、重组菌及其应用
本专利技术涉及棉花GhAS1基因、GhAS1蛋白、重组载体、重组菌及其应用,属于基因工程
技术介绍
棉花是最主要的纤维作物之一,在我国国民经济中占有重要的地位。随着耕地面积不断减少,粮棉争地矛盾加剧,棉花的种植区域逐渐靠近土壤贫瘠,甚至盐碱化地区。因此,提高棉花品种的抗盐胁迫能力具有重要的生产应用价值。拟南芥ASYMMETRICLEAVES1(AT2G37630)和AtAS2(AT1G65620)基因参与了叶片的极性建成过程。与正常的野生型拟南芥相比,as1和as2突变体有许多的表型缺陷:两者的叶片都向下卷曲,并且长有附属结构叶瓣(leaflobe);叶柄和叶片较短,没有明显的主叶脉,叶脉的分枝数目较少且不对称;用突变体叶片在不含激素的培养基进行组织培养时,愈伤分化出根的频率比野生型叶片低,但是分化出茎的频率比后者要高;叶片近轴面极性分化的程度降低,荚果的形态也不正常。由此可知,AtAS1和AtAS2基因不仅影响叶片中侧轴方向的极性分化,还参与了近远轴的极性建立和整个叶脉系统的发育。AtAS1 ...
【技术保护点】
棉花GhAS1基因,其特征在于:其核苷酸序列如SEQ ID NO.1中479‑1549位所示。
【技术特征摘要】
1.棉花GhAS1基因,其特征在于:其核苷酸序列如SEQIDNO.1中479-1549位所示。2.如权利要求1所述的GhAS1基因表达的GhAS1蛋白,其特征在于:其氨基酸序列如SEQIDNO.2所示。3.包含如权利要求1所述的棉花GhAS1基因的重组载体。4.包含如权利要求3所述的重组载体的...
【专利技术属性】
技术研发人员:王中,王姗姗,杨军,李锋,武明珠,谢小东,罗朝鹏,
申请(专利权)人:中国烟草总公司郑州烟草研究院,
类型:发明
国别省市:河南,41
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