Testing for Universal Common Ancestry
نویسندگان
چکیده
منابع مشابه
Testing for universal common ancestry.
Page: 838 838–842 Syst. Biol. 63(5):838–842, 2014 © The Author(s) 2014. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provid...
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— While there is no doubt among evolutionary biologists that all living species, or merely all living species within a particular group (e.g., animals), share descent from a common ancestor, formal statistical methods for evaluating common ancestry from aligned DNA sequence data have received criticism. One primary criticism is that prior methods take sequence similarity as evidence for common ...
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Douglas Theobald recently developed an interesting test putatively capable of quantifying the evidence for a Universal Common Ancestry uniting the three domains of life (Eukarya, Archaea and Bacteria) against hypotheses of Independent Origins for some of these domains. We review here his model, in particular in relation to the treatment of Horizontal Gene Transfer (HGT) and to the quality of se...
متن کاملTesting the hypothesis of common ancestry.
The hypothesis that all life on earth traces back to a single common ancestor is a fundamental postulate in modern evolutionary theory. Yet, despite its widespread acceptance in biology, there has been comparatively little attention to formally testing this "hypothesis of common ancestry". We review and critically examine some arguments that have been proposed in support of this hypothesis. We ...
متن کاملTitle: Statistical Evidence for Common Ancestry: Testing for Signal in Silent Sites
1. The common ancestry of life is supported by an enormous body of evidence and is universally accepted within the scientific community. However, some potential sources of data that can be used to test the thesis of common ancestry have not yet been formally analyzed. 2. We developed a new test of common ancestry based on nucleotide sequences at amino acid invariant sites in aligned homologous ...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2014
ISSN: 1076-836X,1063-5157
DOI: 10.1093/sysbio/syu041