...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Parasitology >Co-phylogeography and morphological evolution of sika deer lice (Damalinia sika) with their hosts (Cervus nippon)
【24h】

Co-phylogeography and morphological evolution of sika deer lice (Damalinia sika) with their hosts (Cervus nippon)

机译：梅花鹿虱（Damalinia sika）与其寄主（Cervus nippon）的共同系统学和形态演变

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

Lice are obligate parasites of mammals and birds and have become an important model for studies of host-parasite co-evolution and co-phylogenetics. Population genetic and phylogeographic studies represent an important bridge between microevolution and co-phylogenetic patterns. We examine co-phylogeographic patterns in sika deer and their parasitic lice. Co-phylogeographic patterns in deer and lice were evaluated using homologous regions of mitochondrial COI sequences. The phylogeographic breaks recovered for deer populations matched those of previous studies. Comparisons of the phylogeographic tree topology for deer lice with that of their hosts revealed a significant level of congruence. However, comparisons of genetic distances between deer and lice suggested that one of the estimated co-divergence events is more likely a recent host switch. Taking into account genetic divergence, there is not strong evidence for complete phylogeographic co-divergence between deer and their parasitic lice. However, mitochondrial phylogenies only track genetic structure of female lineages, and the incongruence between deer and louse phylogeography may be explained by louse migration mediated by male deer. Morphological analysis of head shape variation based on an elliptic Fourier descriptor showed that overall morphological variation contained phylogenetic signal, suggesting that in general morphology of these lice evolves congruent to population history.
机译：虱子是哺乳动物和鸟类的专性寄生虫，已成为研究宿主-寄生虫共同进化和共系统发生学的重要模型。种群遗传学和系统地理学研究代表了微进化和共进化模式之间的重要桥梁。我们研究了梅花鹿及其寄生虱的共系谱模式。使用线粒体COI序列的同源区域评估了鹿和虱子的同系谱模式。鹿群恢复的系统断裂与以前的研究相符。鹿虱的系统树形拓扑与其寄主的拓扑结构相比，显示出显着的一致性。然而，对鹿和虱子之间遗传距离的比较表明，估计的共同趋异事件之一更有可能是最近的宿主转换。考虑到遗传差异，没有强有力的证据证明鹿与它们的寄生虱之间在系统地理学上完全一致。然而，线粒体系统发育只追踪雌性谱系的遗传结构，而鹿与虱子系谱之间的不一致可能是由雄性鹿介导的虱子迁移所解释的。基于椭圆傅立叶描述子的头部形状变异的形态学分析表明，总体形态变异包含系统发育信号，这表明这些虱子的总体形态演变与种群历史一致。

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