...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Parasitology >HIGH LINEAGE DIVERSITY AND HOST SHARING OF MALARIAL PARASITES IN A LOCAL AVIAN ASSEMBLAGE
【24h】

HIGH LINEAGE DIVERSITY AND HOST SHARING OF MALARIAL PARASITES IN A LOCAL AVIAN ASSEMBLAGE

机译：本地鸟类组合中疟疾寄生虫的高谱系多样性和寄主共享

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

Bird populations often have high prevalences of the haemosporidians Haemoproteus spp. and Plasmodium spp., but the extent of host sharing and host switching among these parasite lineages and their avian hosts is not well known. While sampling within a small geographic region in which host individuals are likely to have been exposed to the same potential parasite lineages, we surveyed highly variable mitochondrial DNA from haemosporidians isolated from 14 host taxa representing 4 avian families (Hirundinidae, Parulidae, Emberizidae, and Fringillidae). Analyses of cytochrome b sequences from 83 independent infections identified 29 unique haplotypes, representing 2 well-differentiated Haemoproteus spp. lineages and 6 differentiated Plasmodium spp. lineages. A phylogenetic reconstruction of relationships among these lineages provided evidence against host specificity at the species and family levels, as all haemosporidian lineages recovered from 2 or more host individuals (2 Haemoproteus and 3 Plasmodium lineages) were found in at least 2 host families. We detected a similar high level of host sharing; the 3 most intensively sampled host species each harbored 4 highly differentiated haemosporidian lineages. These results indicate that some Haemoproteus spp. and Plasmodium spp. lineages exhibit a low degree of host specificity, a phenomenon with implications for ecological and evolutionary interactions among these parasites and their hosts.
机译：鸟类种群中的血孢子菌Haemoproteus spp的患病率很高。和疟原虫属，但这些寄生虫谱系及其禽类宿主之间宿主共享和宿主切换的程度尚不清楚。在一个较小的地理区域内采样，在该区域中，寄主个体可能已经暴露于相同的潜在寄生虫谱系，我们调查了从代表4个禽类家族的14个寄主分类单元（Hirundinidae，Parulidae，Emberizidae和Fringillidae）的血孢子虫中高度可变的线粒体DNA。 ）。对来自83个独立感染的细胞色素b序列的分析确定了29种独特的单倍型，代表了2种高度分化的血红蛋白菌。谱系和6个分化的疟原虫属。血统。这些谱系之间的亲缘关系的系统发育重建提供了在物种和家族水平上反对宿主特异性的证据，因为在至少2个宿主家族中发现了从2个或更多宿主个体（2个变形蛋白和3个疟原虫谱系）中回收的所有血孢菌谱系。我们检测到了类似的高水平主机共享。 3个采样最密集的寄​​主物种各藏有4个高度分化的血孢子虫谱系。这些结果表明一些血生变形杆菌属。和疟原虫属。宗族表现出较低的寄主特异性，这种现象对这些寄生虫及其寄主之间的生态和进化相互作用具有影响。

著录项

  • 来源
    《Journal of Parasitology》 |2005年第4期|p.00000768-00000774|共7页
  • 作者

    M. M. Szymanski and I. J. Lovette*;

  • 作者单位

    Laboratory of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York 14850. ijl2@cornell.edu*To whom correspondence should be addressed;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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