...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Genetica >Comparative population structure of Chinese sumac aphid Schlechtendalia chinensis and its primary host-plant Rhus chinensis
【24h】

Comparative population structure of Chinese sumac aphid Schlechtendalia chinensis and its primary host-plant Rhus chinensis

机译：中国漆树蚜虫Schlechtendalia chinensis及其主要寄主植物Rhus chinensis的比较种群结构

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Most of our current understanding of comparative population structure has been come from studies of parasite–host systems, whereas the genetic comparison of gallnut-aphids and their host-plants remain poorly documented. Here, we examined the population genetic structure of the Chinese sumac aphid Schlechtendalia chinensis and its unique primary host-plant Rhus chinensis in a mountainous province in western China using inter-simple sequence repeat (ISSR) markers. Despite being sampled from a mountainous geographic range, analysis of molecular variance (AMOVA) showed that the majority of genetic variation occurred among individuals within populations of both the aphid and its host. The aphid populations were found to be structured similarly to their primary host populations (F ST values were 0.239 for the aphid and 0.209 for its host), suggesting that there are similar patterns of gene flow between the populations of the aphid and between populations of its host-plant. The genetic distances (F ST/1 − F ST) between the aphid populations and between its host-plant populations were uncorrelated, indicating that sites with genetically similar host-plant populations may not always have genetically similar aphid populations. The lack of relationships between genetic and geographical distance matrices suggested that isolation by distance (IBD) played a negligible role at this level. This may be mainly attributed to the founder effect, genetic drift and the relative small spatial scale between populations.
机译：我们目前对比较种群结构的大多数了解来自对寄生虫-宿主系统的研究，而对花生-蚜虫及其宿主植物的遗传比较仍然文献不足。在这里，我们使用ISR标记研究了中国西部山区的中国漆树蚜虫Schlechtendalia chinensis及其独特的主要寄主植物Rhus chinensis的种群遗传结构。尽管是从山区地理区域取样的，但分子变异分析（AMOVA）表明，大多数遗传变异发生在蚜虫及其寄主种群内的个体之间。发现蚜虫种群的结构与其主要寄主种群相似（蚜虫的F ST 值分别为0.239和寄主0.209），这表明该种群之间的基因流模式相似。蚜虫及其寄主植物的种群之间。蚜虫种群之间及其寄主植物种群之间的遗传距离（F ST / 1-F ST ）是不相关的，这表明具有遗传相似寄主植物种群的位点并非总是具有遗传相似的蚜虫种群。遗传距离矩阵与地理距离矩阵之间缺乏联系，表明按距离隔离（IBD）在此级别上的作用微不足道。这可能主要归因于创始人效应，遗传漂移和种群之间相对较小的空间尺度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号