A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae).
A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae).
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DOI：
10.1186/1471-2148-14-72
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发表时间：
2014-04-02
影响因子：
3.4
通讯作者：
Masters JC
中科院分区：
文献类型：
--
作者：
Pozzi L;Disotell TR;Masters JC
丛林幼崽是所有灵长类动物中形态最神秘的一种，它们的多样性和关系是灵长类动物学中最长期存在的问题。由于缺乏适当的分子数据和化石的匮乏，我们对Galagid进化史的了解一直受到限制。大多数系统发育研究对许多支系产生了相互矛盾的结果，甚至属间的关系仍然不确定。为了阐明银河猴的进化史，我们通过对27个独立的基因座进行测序，组装了迄今为止最大的银河猴分子数据集。我们使用串联的最大似然法和贝叶斯分析来推断系统发育关系，也使用基于合并的物种树方法来解释由于不完全的谱系排序而导致的基因树的异质性。Euoticus属被确定为其他Galagidae的姊妹分类单元，Galagoids属未被恢复为单系分类，这表明需要为桑给巴尔复合体命名一个新的属名。尽管在这项研究中收集了大量的遗传数据，但Lorisidae科的单系支持仍然很差，可能是因为Lorisidae/Galagidae分裂和非洲和亚洲Lorisid分支的起源之间的节间较短。一个主要的结果是，在始新世-渐新世界线之后不久，所有现存星系的最新共同祖先的起源相对较老。使用多位点方法，我们的结果表明，冠加拉科起源较早，在始新世-渐新世界线之后不久，使Euoticus成为现存灵长类中最古老的谱系之一。这一结果还表明，在始新世晚期，一个或多个树干辐射分叉，并与冠群成员一起持续了数百万年。
Bushbabies (Galagidae) are among the most morphologically cryptic of all primates and their diversity and relationships are some of the most longstanding problems in primatology. Our knowledge of galagid evolutionary history has been limited by a lack of appropriate molecular data and a paucity of fossils. Most phylogenetic studies have produced conflicting results for many clades, and even the relationships among genera remain uncertain. To clarify galagid evolutionary history, we assembled the largest molecular dataset for galagos to date by sequencing 27 independent loci. We inferred phylogenetic relationships using concatenated maximum-likelihood and Bayesian analyses, and also coalescent-based species tree methods to account for gene tree heterogeneity due to incomplete lineage sorting. The genus Euoticus was identified as sister taxon to the rest of the galagids and the genus Galagoides was not recovered as monophyletic, suggesting that a new generic name for the Zanzibar complex is required. Despite the amount of genetic data collected in this study, the monophyly of the family Lorisidae remained poorly supported, probably due to the short internode between the Lorisidae/Galagidae split and the origin of the African and Asian lorisid clades. One major result was the relatively old origin for the most recent common ancestor of all living galagids soon after the Eocene-Oligocene boundary. Using a multilocus approach, our results suggest an early origin for the crown Galagidae, soon after the Eocene-Oligocene boundary, making Euoticus one of the oldest lineages within extant Primates. This result also implies that one – or possibly more – stem radiations diverged in the Late Eocene and persisted for several million years alongside members of the crown group.
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影响因子：
10.7
作者：
Castresana, J
通讯作者：
Castresana, J
影响因子：
1.7
作者：
Ambrose, L
通讯作者：
Ambrose, L
影响因子：
9.8
作者：
Drummond AJ;Ho SY;Phillips MJ;Rambaut A
通讯作者：
Rambaut A
DOI：
10.1073/pnas.0607004104
发表时间：
2007-04-03
影响因子：
11.1
作者：
Edwards, Scott V.;Liu, Liang;Pearl, Dennis K.
通讯作者：
Pearl, Dennis K.
影响因子：
10.7
作者：
Drummond, Alexei J.;Suchard, Marc A.;Rambaut, Andrew
通讯作者：
Rambaut, Andrew