Unraveling the evolutionary history of a major Afrotherian clade of placental mammals: A total evide

来源 :The 6rd International Symposium of Integrative Zoolog(ISIZ)( | 被引量 : 0次 | 上传用户:kylinbird1
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Golden moles(family Chrysochloridae)belong to an ancient Afrotheria clade of placental mammals and represent one of Africas most enigmatic,elusive and endangered mammals.Ten of the 21 described species are threatened(IUCN 2014),yet morphological,cytogenetic and molecular delineations of several taxa and their evolutionary relationships remain unclear.A sound taxonomy forms an essential baseline for effective conservation planning and in this context,parsimony and model-based maximum likelihood and Bayesian methods and diverse data treatments were used to infer a well-resolved phylogeny for the Chrysochloridae from molecular(five genes)and multistate morphological and cytogenetic(32)characters.We present a revised taxonomic classification for the Chrysochloridae,as the inferred relationships revealed highly divergent lineages within a number of genera and species as well as contradicting evolutionary trends in certain morphological characters suggesting convergent evolution and homoplasy.The conservation implications of the phylogeny and some novel insights into intra-specific relationships of the highly threatened and range-restricted Neamblysomus julianae and the widespread Amblysomus hottentotus are discussed.Due to the novelty of this mammalian family and the insights it can offer into the radiation of an old but range-restricted clade across the African continent,Bayesian relaxed-clock molecular dating was used to tentatively place their diversification within a temporal and biogeographic framework.
其他文献
  落水洞沟沟水处理工程具有典型的西部山区泥石流沟沟水处理工程的特点。借鉴锦屏二级水电站模萨沟渣场沟水处理工程、海拉沟渣场沟水处理工程成功经验,确定设计理念为多道
UO2芯块外表质量对芯块堆内的安全运行影响很大。在陶瓷UO2芯块制造中可能会出现各种外表缺陷,一般通过控制制造工艺确保芯块外表符合技术要求。本文针对IDR(The Integrated Dr
  自从岩爆发生以来,工程实践中一直在寻求对岩爆风险预测,虽然现在岩爆预警技术取得了长足的进步,但鉴于问题的复杂性,目前仍然无法对岩爆进行准确的预报,能够实现的是对岩爆风
目前在聚合物材料领域中,无论是基础研究或是工业开发都十分活跃的聚合物/层状硅酸盐(Polymer/LayeredSilicate,PLS)纳米复合材料,与传统复合材料相比,不仅结构和形态独特,而且具
  着眼于当前地下洞室发展现状,针对信息施工的关键难题——信息反馈难以满足时效性要求,提出了基于围岩各主要影响因素数值试验结果量化规律的洞室围岩应力场快速分析的思路
会议
  Given two theorems Φ and Ψ,a proof theoretic approach to compare their strength is to see whether we can find a deduction from Φ to Ψ or vice versa.In m
会议
本论文参考已报导的戴尔根霉脂肪酶基因序列设计了一对特异性引物,为了便于定向克隆,在上下游引物两端分别引入了SnaBⅠ和NotⅠ酶切位点。用PCR方法从戴尔根霉(Rhizopusdelemar
  溧阳抽水蓄能电站工程地质条件十分复杂,地下水丰富。针对本工程特点通过对支护设计方案、施工开挖程序、厂区超前排水措施、厂房顶拱预固结灌浆措施、利用监测数据分析动
冬虫夏草是我国传统的、珍贵的中草药。目前,野生冬虫夏草产量急剧下降,而价格飞涨。为改变现状,人工培育冬虫夏草成为研究热点。了解冬虫夏草菌种的遗传多样性以及开展原生质体融合(Protoplast fusion)育种,将为实现上述目标提供研究基础和前提。本文应用不同的分离方法以及分离不同部位的组织获得了数十株冬虫夏草无性型中国被毛孢菌株,研究其原生质体制备的最佳工艺;同时,采用ISSR分子技术和交配型
  立洲水电站DR2危岩体位于坝址区右岸陡壁,所在位置地形陡峭、分布高程较高,且其处理对正在施工的大坝有很大的影响,交通布置困难、物资运输困难,处理难度很大,本文简要叙述了