RRC ID |
30360
|
著者 |
Kamikawa R, Yabuki A, Nakayama T, Ishida K, Hashimoto T, Inagaki Y.
|
タイトル |
Cercozoa comprises both EF-1α-containing and EFL-containing members.
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ジャーナル |
Eur J Protistol
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Abstract |
Elongation factor 1α (EF-1α) and elongation factor-like protein (EFL) are considered to be functionally equivalent proteins involved in peptide synthesis. Eukaryotes can be fundamentally divided into 'EF-1α-containing' and 'EFL-containing' types. Recently, EF-1α and EFL genes have been surveyed across the diversity of eukaryotes to explore the origin and evolution of EFL genes. Although the phylum Cercozoa is a diverse group, gene data for either EFL or EF-1α are absent from all cercozoans except chlorarachniophytes which were previously defined as EFL-containing members. Our survey revealed that two members of the cercozoan subphylum Filosa (Thaumatomastix sp. and strain YPF610) are EFL-containing members. Importantly, we identified EF-1α genes from two members of Filosa (Paracercomonas marina and Paulinella chromatophora) and a member of the other subphylum Endomyxa (Filoreta japonica). All cercozoan EFL homologues could not be recovered as a monophyletic group in maximum-likelihood and Bayesian analyses, suggesting that lateral gene transfer was involved in the EFL evolution in this protist assemblage. In contrast, EF-1α analysis successfully recovered a monophyly of three homologues sampled from the two cercozoan subphyla. Based on the results, we postulate that cercozoan EF-1α genes have been vertically inherited, and the current EFL-containing species may have secondarily lost their EF-1α genes.
|
巻・号 |
47(1)
|
ページ |
24-8
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公開日 |
2011-1-1
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DOI |
10.1016/j.ejop.2010.08.002
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PII |
S0932-4739(10)00051-9
|
PMID |
21071191
|
MeSH |
Cercozoa / genetics*
Evolution, Molecular
Gene Deletion
Gene Transfer, Horizontal
Peptide Elongation Factors / genetics*
Phylogeny*
Protozoan Proteins / genetics*
Sequence Homology, Amino Acid
|
IF |
2.395
|
引用数 |
10
|
WOS 分野
|
MICROBIOLOGY
|
リソース情報 |
藻類 |
NIES-2378 |