检索结果-南通市图书馆

Genetic variation amongst biotypes of Dactylopius tomentosus

Insect Science 2015年第3期22卷 360-374页

作者： c.therine w. mathenge Markus Riegler G. Andrew.c. Beattie Robert N. Spooner-Hart Paul Holford School of Science and Health University of Western Sydney (Hawkesbury Campus) Haw.esbury Institute for the Environment University of Western Sydney Locked Bag 1797 Penrith NSW 2751 Australia

The tomentose cochineal scale insect, Dactylopius tomentosus （Lamarck）（Hemiptera： Dactylopiidae）, is an important biological control agent against invasive species of cylindropuntia （caryophyllales： cactaceae）. Recent studies have demonstrated that this scale is composed of host-affiliated biotypes w.th differential host specificity and fitness on particular host species. w. investigated genetic variation and phylogenetic rela-tionships among D. tomentosus biotypes and provenances to examine the possibility that genetic diversity may be related to their host-use pattern, and w.ether their phylogenetic relationships w.uld give insights into taxonomic relatedness of their host plants. Nucleotide sequence comparison w.s accomplished using sequences of the mitochondrial cytochrome c oxidase I （cOI） gene. Sequences of individuals from the same host plant w.thin a region w.re identical and characterized by a unique haplotype. Individuals belonging to the same biotype but from different regions had similar haplotypes. How.ver, haplotypes w.re not shared betw.en different biotypes. Phylogenetic analysis grouped the monophyletic D. tomentosus into 3 w.ll-resolved clades of biotypes. The phylogenetic relationships and clustering of biotypes corresponded w.th know. taxonomic relatedness of their hosts. Tw. biotypes, Fulgida and Mamillata, tested positive for w.lbachia （α-Proteobacteria）, a common endosymbiont of insects. The w.lbachia sequences w.re serendipitously detected by using insect-specific cOI DNA barcoding primers and are most similar to w.lbachia Supergroup F strains. This study is the first molecular characterization of cochineal biotypes that, together w.th w.lbachia sequences, contribute to the better identification of the biotypes of cochineal insects and to the biological control of cacti using host-specific biotypes of the scale.

关键词： biotypes cylindropuntia spp. Dactylopiidae Hemiptera tomentose cochineal scale w.lbachia spp.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：