瓜实蝇热激蛋白基因hsp70的克隆及序列分析

【目的】克隆分析瓜实蝇热激蛋白hsp70基因序列特征,为进一步研究瓜实蝇的热适应性机制及制定综合防治策略奠定基础。【方法】根据NCBI数据库中已报道的昆虫hsp70gNN保守序列,设计合成扩增瓜实蝇hsp70基因部分片段的简并引物,并利用RACE.PCR扩增其全长序列。【结果】克隆获得瓜实蝇hsp70基INcDNA全长序列(获取号:KMll2021)2271bp,含1911bp的开放阅读框,编码636个氨基酸,具有真核生物hsp70基因家族的3个明显基序标签,同时在C-末端具有EEVD基序,推测其属于胞质型热激蛋白。BLAST分析结果表明该序列与双翅目实蝇科昆虫hsp70基因高度相似,最高相似...

Full description

Saved in:
Bibliographic Details
Published in南方农业学报 Vol. 46; no. 5; pp. 800 - 805
Main Author 姜建军 王凤英 黄立飞 陈红松 李磊 杨朗
Format Journal Article
LanguageChinese
Published 广西农业科学院植物保护研究所/广西作物病虫害生物学重点实验室,南宁,530007%中国热带农业科学院环境与植物保护研究所,海口,571101 2015
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:【目的】克隆分析瓜实蝇热激蛋白hsp70基因序列特征,为进一步研究瓜实蝇的热适应性机制及制定综合防治策略奠定基础。【方法】根据NCBI数据库中已报道的昆虫hsp70gNN保守序列,设计合成扩增瓜实蝇hsp70基因部分片段的简并引物,并利用RACE.PCR扩增其全长序列。【结果】克隆获得瓜实蝇hsp70基INcDNA全长序列(获取号:KMll2021)2271bp,含1911bp的开放阅读框,编码636个氨基酸,具有真核生物hsp70基因家族的3个明显基序标签,同时在C-末端具有EEVD基序,推测其属于胞质型热激蛋白。BLAST分析结果表明该序列与双翅目实蝇科昆虫hsp70基因高度相似,最高相似度达91%。氨基酸序列系统发育分析结果显示,瓜实蝇与双翅目实蝇科昆虫聚类为一个分支,证实hsp70基因的高度保守。【结论】瓜实蝇hsp70基因具有真核生物hsp70基因家族的特征,序列表现为高度的保守性,可作为今后研究瓜实蝇抗逆性机制的一个参数指标。
Bibliography:45-1381/S
B. cucurbitae Coquillett; heat shock protein hsp70 gene ; RACE-PCR; sequence analysis
[Objective ]The present experiment was conducted to clone and analyze heat shock protein 70 gene (hsp70 gene) from Bactrocera cucurbitae Coquillett to lay the foundation for further study on heat adaptability mechanism of B.cu- curbitae and making comprehensive prevention and control strategy. [Methods]Based on the amino acid sequence of insect hsp70 from NCBI, the degenerate primers were designed to amplify full-length fragment of hspTO gene from B.cucurbitae by using RACE-PCR method. [Results]The result showed that, the obtained full-length fragment of hsp70 gene eNDA (accession number: KMl12021) was 2271 bp in length, which contained a open reading frame of 1911 bp encoding 636 amino acids with three sequence signatures of bsp70 gene family and EEVD motif in C-terminal region. Therefore, the hsp70 gene of B. cucurbitae was proven to belong to cytoplasmic heat shock protein. The BLAST analysis showed that the obtai
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2015.5.800