详细信息
毛白杨纤维素合酶基因(PtoCesAl)的克隆及其在烟草中的遗传转化 被引量:3
Isolation and Transformation in Nicotiana tabacum of a Cellulose Synthase Gene ( PtoCesAl ) from Populus tomentosa
文献类型:期刊文献
中文题名:毛白杨纤维素合酶基因(PtoCesAl)的克隆及其在烟草中的遗传转化
英文题名:Isolation and Transformation in Nicotiana tabacum of a Cellulose Synthase Gene ( PtoCesAl ) from Populus tomentosa
作者:李春秀[1] 齐力旺[1] 史胜青[1] 汪阳东[1] 王建华[1] 张守攻[1]
第一作者:李春秀
机构:[1]中国林业科学研究院林业研究所细胞生物学实验室
年份:2007
卷号:43
期号:3
起止页码:39-45
中文期刊名:林业科学
外文期刊名:Scientia Silvae Sinicae
收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:国家高技术研究发展计划("863"计划)资助项目(2003AA244060与2003AA244020)。
语种:中文
中文关键词:毛白杨;纤维素合酶基因;遗传转化
外文关键词:Populus tomentosa ; PtoCesAl ; transformation
分类号:S718.46;Q943.2
摘要:克隆毛白杨纤维素合酶基因(PtoCesAl),全长为3215bp,与欧洲颤杨的PtrCesAl基因的同源性为97%,具有开放的阅读框,编码区在52~2988碱基之间,为2937bp。构建PtoCesAl基因的全长正义植物表达载体为pBIPAl,经酶切和PCR鉴定确认载体构建正确。通过农杆菌介导的方法将pBIPAl表达载体转入烟草中,转基因植株的纤维细胞壁厚度和木质部厚度都有不同程度的下降,形态表征为植株明显变矮,叶片变小。
A cellulose synthase gene( PtoCesAl ), isolated from Populus tomentosa, was 3 215 bp long with an opening reading frame of 2 937 bp extending from nucleotides 52 - 2 988. Comprison of the nucleotide sequence of PtoCesAl with PtrcesAl from Populus tomentosa showed 97% identity. The full length PtoCesAl cDNA was subeloned into pBI121 and identified by digestion, then transformed into Nicotiana tabacum by leaf disc. The transgenic plants with PtoCesAl had small leaves, and "dwarf" phenotype, consistent with a loss of xylem and fiber cell wall thickness
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