烟粉虱复合种内共生菌多样性及其生物学意义

›› 2006, Vol. 49 ›› Issue (4): 687-694.

烟粉虱复合种内共生菌多样性及其生物学意义

褚栋, 刘国霞, 陶云荔，张友军^*

中国农业科学院蔬菜花卉研究所，北京 100081

出版日期:2006-09-28 发布日期:2006-08-20
通讯作者: 张友军

Diversity of endosymbionts in Bemisia tabaci (Gennadius) complex and their biological implications

CHU Dong, LIU Guo-Xia, TAO Yun-Li, ZHANG You-Jun

Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China）

Online:2006-09-28 Published:2006-08-20
Contact: ZHANG You-Jun

摘要/Abstract

摘要： 烟粉虱复合种Bemisia tabaci（Gennadius） complex内共生菌的种类可分为5类：变形菌门（Proteobacteria）γ变形菌纲的初级内共生菌Candidatus Portiera aleyrodidarum和次级内共生菌，变形菌门α变形菌纲Wolbachia属细菌，衣原体门（Chlamydiae）衣原体纲细菌CandidatusFritschea bemisiae以及拟杆菌门（Bacteroidetes）类噬胞细菌（Cytophaga-like-organism， CLO）。系统发育分析表明，烟粉虱初级内共生菌分为2支，一些初级内共生菌和宿主系统发育并不严格一致；次级内共生菌分为3支，一些次级内共生菌可能存在水平传播或多次侵入的现象。上述5类内共生菌在烟粉虱不同生物型/地理种群内的分布存在差异。B型烟粉虱可能具有独特的初级、次级内共生菌，并且不含有或很少含有Wolbachia属细菌、衣原体纲细菌Candidatus Fritschea bemisiae以及类噬胞细菌（CLO）。最后探讨了不同内共生菌对烟粉虱宿主的生物学意义及其研究方向。

关键词: 烟粉虱复合种, 内共生菌, 多样性, 分布

Abstract: There are about 5 kinds of endosymbionts in Bemisia tabaci (Gennadius) complex including primary endosymbionts, secondary endosymbionts, Wolbachia, Candidatus Fritschea bemisiae and Cytophaga-like-organism. Phylogenetic analysis showed that primary endosymbionts in B. tabaci complex could be divided into two clades based on the 16S rDNA sequences. The phylogeny of primary endosymbionts in B. tabaci was not strictly congruent with that of their host B. tabaci. Secondary endosymbionts in B. tabaci complex could be divided into three clades based on the 16S rDNA sequences, and horizontal transmission and/or multiple infections might have occurred in these secondary endosymbionts. The distribution of the endosymbionts in B. tabaci biotypes was different, and some peculiar primary and secondary endosymbionts were found in B. tabaci Biotype B. Wolbachia, Candidatus Fritschea bemisiae and Cytophaga-like-organism were not found or scarcely found in B. tabaci Biotype B. Finally the biological implications of different endosymbionts for B. tabaci and future research directions are discussed.

Key words: Bemisia tabaci complex, endosymbionts, diversity, distribution

褚栋, 刘国霞, 陶云荔，张友军^*. 烟粉虱复合种内共生菌多样性及其生物学意义[J]. , 2006, 49(4): 687-694.

CHU Dong, LIU Guo-Xia, TAO Yun-Li, ZHANG You-Jun. Diversity of endosymbionts in Bemisia tabaci (Gennadius) complex and their biological implications[J]. , 2006, 49(4): 687-694.

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