2018年9月27日
Inference of the ancestral vertebrate phenotype through vestiges of the whole-genome duplications.
Briefings in functional genomics
- ,
- 巻
- 17
- 号
- 5
- 開始ページ
- 352
- 終了ページ
- 361
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1093/bfgp/ely008
Inferring the phenotype of the last common ancestor of living vertebrates is a challenging problem because of several unresolvable factors. They include the lack of reliable out-groups of living vertebrates, poor information about less fossilizable organs and specialized traits of phylogenetically important species, such as lampreys and hagfishes (e.g. secondary loss of vertebrae in adult hagfishes). These factors undermine the reliability of ancestral reconstruction by traditional character mapping approaches based on maximum parsimony. In this article, we formulate an approach to hypothesizing ancestral vertebrate phenotypes using information from the phylogenetic and functional properties of genes duplicated by genome expansions in early vertebrate evolution. We named the conjecture as 'chronological reconstruction of ohnolog functions (CHROF)'. This CHROF conjecture raises the possibility that the last common ancestor of living vertebrates may have had more complex traits than currently thought.
- リンク情報
- ID情報
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- DOI : 10.1093/bfgp/ely008
- ISSN : 2041-2649
- PubMed ID : 29566222
- PubMed Central 記事ID : PMC6158797