数字农科院2.0

水稻褐飞虱内生共生细菌Arsenophonus的鉴定和系统分析

文献类型: 中文期刊

作者: 王渭霞 ; 罗举 ; 赖凤香 ; 傅强 *

作者机构:

关键词: 褐飞虱;共生菌;杀雄菌属;16S rDNA;系统发育

期刊名称:昆虫学报

ISSN: 0454-6296

年卷期: 2010 年 53 卷 06 期

页码: 49-56

收录情况: 北大核心(2020版) ; CSCD(2020-2021年度) ; 农林核心(2020版) ; 科技核心(2020版)

摘要: 利用16SrDNA通用引物扩增了水稻褐飞虱Nilaparvata lugens(Stal)体内共生细菌的序列,经克隆、测序和NCBI数据库比对,发现褐飞虱体内存在杀雄菌属Arsenophonus类共生细菌,系统发育上与粉虱科和木虱科体内的Arsenophonus属亲源关系较近。在褐飞虱体内该共生细菌具有两种长度不同的16SrDNA序列,分别为1504bp和547bp,其中后者为前者中间缺失了957bp,其余序列相同。通过重新设计两对引物进行扩增,进一步确认不同褐飞虱地理种群及寄主种群均存在两种片段。Arsenophonus特异的23SrDNA引物的扩增结果表明,Arsenophonus存在于所有检测的褐飞虱种群中,但不存在于水稻寄主中。荧光定量PCR检测发现3个褐飞虱室内寄主种群Arsenophonus属共生细菌含量不同,其中TN1种群明显高于Mudgo种群和ASD7种群。此为水稻褐飞虱体内存在Arsenophonus属共生细菌的首次报道。

分类号: S435.112.3`Q968.1

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