Dental Data Perform Relatively Poorly in Reconstructing Mammal Phylogenies: Morphological Partitions Evaluated with Molecular Benchmarks.
Dental Data Perform Relatively Poorly in Reconstructing Mammal Phylogenies: Morphological Partitions Evaluated with Molecular Benchmarks.
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DOI：
10.1093/sysbio/syw116
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发表时间：
2017-09-01
影响因子：
6.5
通讯作者：
Williams T
中科院分区：
文献类型：
--
作者：
Sansom RS;Wills MA;Williams T
系统发育树是重建进化历史和检验进化假说的基础。它们是从分子和形态学数据中推断出来的，然而形态学的相对价值在这种情况下受到质疑，因为人们认为同源性、发育联系和性状的非独立性。然而，化石数据仅限于保存完好的形态的不完整子集，不同的区域被视为等效的。通过对40个数据集的meta分析，我们发现哺乳动物的牙齿和骨骼特征传达了明显不同的系统发育信号，而骨骼特征与分子树的相容性更强。此外，应用简化的古生物滤波器（只保留牙齿数据）比随机特征消融导致更大的系统发育信号损失。尽管哺乳动物化石记录主要由牙齿组成，但由于牙齿数据与骨学和分子数据不一致，因此通常发现牙齿数据单独用于系统发育重建不太可靠。这些发现强调了对形态学数据中同质性分布进行严格的荟萃分析的必要性。这些测试，以及由此带来的对系统发育分析的改进，有望提高所有依赖精确树的宏观进化研究的质量。[相似;哺乳动物;形态;骨学;发展史;牙齿
Phylogenetic trees underpin reconstructions of evolutionary history and tests of evolutionary hypotheses. They are inferred from both molecular and morphological data, yet the relative value of morphology has been questioned in this context due to perceived homoplasy, developmental linkage, and nonindependence of characters. Nevertheless, fossil data are limited to incomplete subsets of preserved morphology, and different regions are treated as equivalent. Through meta-analysis of 40 data sets, we show here that the dental and osteological characters of mammals convey significantly different phylogenetic signals, and that osteological characters are significantly more compatible with molecular trees. Furthermore, the application of simplified paleontological filters (retaining only dental data) results in significantly greater loss of phylogenetic signal than random character ablation. Although the mammal fossil record is largely comprised of teeth, dental data alone are generally found to be less reliable for phylogenetic reconstruction given their incongruence with osteological and molecular data. These findings highlight the need for rigorous meta-analyses of distributions of homoplasy in morphological data. These tests, and consequent refinements to phylogenetic analyses that they permit, promise to improve the quality of all macroevolutionary studies that hinge on accurate trees. [Homoplasy; Mammalia; morphology; osteology; phylogeny; teeth
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影响因子：
56.9
作者：
Asher, RJ;Meng, J;Novacek, MJ
通讯作者：
Novacek, MJ
DOI：
10.1111/j.1096-0031.1995.tb00096.x
发表时间：
1995-12-01
期刊：
CLADISTICS-THE INTERNATIONAL JOURNAL OF THE WILLI HENNIG SOCIETY
影响因子：
--
作者：
Farris, JS;Kallersjo, M
通讯作者：
Kallersjo, M
影响因子：
2.8
作者：
Churchill, Morgan;Boessenecker, Robert W.;Clementz, Mark T.
通讯作者：
Clementz, Mark T.
影响因子：
2.6
作者：
Billet, Guillaume
通讯作者：
Billet, Guillaume
影响因子：
4.1
作者：
Dolphin, K;Belshaw, R;Quicke, DLJ
通讯作者：
Quicke, DLJ