首页> 美国卫生研究院文献>ZooKeys >Molecular evidence for cryptic species in the common slug eating snake Duberrialutrixlutrix (Squamata Lamprophiidae) from South Africa
【2h】

Molecular evidence for cryptic species in the common slug eating snake Duberrialutrixlutrix (Squamata Lamprophiidae) from South Africa

机译:来自南非的食用蛇Duberrialutrixlutrix(SquamataLamprophiidae)的普通中隐性物种的分子证据

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

We examined the impact of climatic fluctuations on the phylogeographic structure of the common slug eating snake (Duberrialutrixlutrix) throughout its distribution in South Africa. The evolutionary history within the taxon was examined using partial DNA sequence data for two mitochondrial genes (ND4 + cyt b) in combination with a nuclear locus (SPTBN1). Phylogenetic relationships were investigated for both the combined mtDNA and total evidence DNA sequence data. In addition, population and demographic analyses together with divergence time estimations were conducted on the combined mtDNA data. Topologies derived from the combined mtDNA analyses and the total evidence analyses were congruent and retrieved five statistically well-supported clades, suggesting that Duberrial.lutrix represents a species complex. The five clades were generally allopatric, separated by altitudinal barriers and characterised by the absence of shared mtDNA haplotypes suggesting long term isolation. Divergence time estimations indicate that the diversification within the D.l.lutrix species complex occurred during the Plio/Pleistocene as a result of climatic fluctuations and habitat shifts for the species. A taxonomic revision of the D.l.lutrix species complex may be required to delineate possible species boundaries.
机译:我们研究了气候波动对其在南非分布的普通食蛇(Duberrialutrixlutrix)的系统地理结构的影响。使用两个线粒体基因(ND4 + cyt b)与核基因座(SPTBN1)的部分DNA序列数据检查了分类单元内的进化历史。研究了组合mtDNA和总证据DNA序列数据的系统发生关系。此外,对组合的mtDNA数据进行了人口和人口统计分析,以及发散时间估计。从组合的mtDNA分析和总证据分析中得出的拓扑结构是一致的,并检索了五个统计上得到良好支持的进化枝,这表明Duberrial.lutrix代表了一个物种复合体。这五个进化枝通常是同种异体的,由高度障碍隔开,其特征是缺乏共享的mtDNA单倍型,表明长期隔离。估计发散时间表明,由于气候波动和栖息地的变化,D.l。lutrix物种复合体内的多样性发生在上新世/上新世期间。 D。 l。 lutrix 物种复合体来描述可能的物种边界。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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