首页|甘蓝型油菜湿害相关基因BnLDH-1的克隆和表达分析

甘蓝型油菜湿害相关基因BnLDH-1的克隆和表达分析

扫码查看
采用RACE技术从中双9号中克隆了甘蓝型油菜BnLDH-1基因全长cDNA序列和基因组序列。 BnLDH-1基因的DNA序列为1432 bp,包含1个内含子;cDNA序列全长1319 bp,含有1个1053 bp的ORF,其编码蛋白含350个氨基酸。经预测发现,BnLDH-1蛋白存在LDH-1保守结构域。 qRT-PCR结果表明,湿害诱导BnLDH-1表达,但在不同耐湿性甘蓝型油菜品种中, BnLDH-1的诱导表达水平不同。相关分析表明,湿害胁迫后48 h的BnLDH-1表达量与12份测试的甘蓝型油菜材料的耐湿指数呈显著负相关,其相关系数为0.73。
Cloning and Expressional Characterization of Wet Damage Related Gene BnLDH-1 from Brassica napus L
The BnLDH-1 gene cDNA and genomic sequences were cloned by the RACE from Zhongshuang No. 9. The genomic sequence of BnLDH-1 was 1 432 bp and contained one intron. The 1 319 bp BnLDH-1 cDNA had a 1 053 bp ORF which encoded a polypeptide of 350 amino acids. The predicted results in-dicated that the BnLDH-1 protein contained conserved LDH-1 domain. qRT-PCR results indicated that BnLDH-1 transcription levels were induced by waterlogging, and the BnLDH-1 transcription level had sig-nificant difference among the Brassica napus L. with different waterlogging tolerance after waterlogging treatment. Correlation analysis indicated that BnLDH-1 transcription levels were significantly negatively correlated with waterlogging tolerance indices of 12 Brassica napus L. at 48 h after waterlogging treat-ment, and the correlation coefficient was 0. 73.

Brassica napus L.cloningexpressionlactate dehydrogenasewaterlogging tolerance

吴金海、周玉堂、谢伶俐、张学昆、许本波

展开 >

长江大学 生命科学学院,湖北 荆州434025

孝感市农业科学院,湖北 孝感432000

中国农业科学院 油料作物研究所,湖北 武汉432600

甘蓝型油菜 克隆 表达 乳酸脱氢酶 耐湿

国家高技术研究发展计划(863计划)项目

2011AA10A104

2016

河南农业科学
河南省农业科学院

河南农业科学

CSTPCDCSCD北大核心
影响因子:0.787
ISSN:1004-3268
年,卷(期):2016.45(3)
  • 2