論文 - 詳細
| RRC ID | 39744 |
|---|---|
| 著者 | Munakata H, Nakada T, Nakahigashi K, Nozaki H, Tomita M. |
| タイトル | Phylogenetic Position and Molecular Chronology of a Colonial Green Flagellate, Stephanosphaera pluvialis (Volvocales, Chlorophyceae), among Unicellular Algae. |
| ジャーナル | J Eukaryot Microbiol |
| Abstract |
The genus Balticola comprises a group of unicellular green flagellate algae and is composed of four species formerly classified in the genus Haematococcus. Balticola is closely related to a colonial green flagellate, Stephanosphaera pluvialis. Although the phylogeny among these genera was previously investigated based on two nuclear gene sequences, the phylogenetic sister of S. pluvialis has yet to be determined. In the present study, the species diversity of Balticola and Stephanosphaera was investigated using 18S rRNA gene sequences, and phylogenetic analyses of combined nuclear and chloroplast gene sequences were performed to understand the evolutionary origin of coloniality in Stephanosphaera. The divergence times of four colonial volvocalean flagellates from their respective unicellular sisters were also estimated. Six Balticola genotypes and a single Stephanosphaera genotype were recognized, and one Balticola genotype was resolved as the sister of S. pluvialis, showing that Balticola is a nonmonophyletic genus. The divergence time of Stephanosphaera from its nearest Balticola relative was estimated to be 4-63 million years ago, and these genera represent the most recently diverged pair of unicellular and colonial flagellates among the Volvocales. |
| 巻・号 | 63(3) |
| ページ | 340-8 |
| 公開日 | 2016-5-1 |
| DOI | 10.1111/jeu.12283 |
| PMID | 26595722 |
| MeSH | DNA, Chloroplast / genetics DNA, Ribosomal / genetics Evolution, Molecular Genetic Variation Genotype Phylogeny Ribulose-Bisphosphate Carboxylase / genetics Volvocida / classification* Volvocida / genetics* |
| IF | 2.143 |
| 引用数 | 7 |
| WOS 分野 | MICROBIOLOGY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 各媒体での言及数の合計 | 0 |
| リソース情報 | |
| 藻類 | NIES-123 NIES-144 NIES-421 NIES-428 NIES-432 NIES-439 NIES-446 NIES-567 NIES-569 NIES-571 NIES-656 NIES-861 NIES-968 NIES-1048 NIES-2293 NIES-2564 NIES-887 |