Title |
Gain and loss of elongation factor genes in green algae
|
---|---|
Published in |
BMC Ecology and Evolution, February 2009
|
DOI | 10.1186/1471-2148-9-39 |
Pubmed ID | |
Authors |
Ellen Cocquyt, Heroen Verbruggen, Frederik Leliaert, Frederick W Zechman, Koen Sabbe, Olivier De Clerck |
Abstract |
Two key genes of the translational apparatus, elongation factor-1 alpha (EF-1alpha) and elongation factor-like (EFL) have an almost mutually exclusive distribution in eukaryotes. In the green plant lineage, the Chlorophyta encode EFL except Acetabularia where EF-1alpha is found, and the Streptophyta possess EF-1alpha except Mesostigma, which has EFL. These results raise questions about evolutionary patterns of gain and loss of EF-1alpha and EFL. A previous study launched the hypothesis that EF-1alpha was the primitive state and that EFL was gained once in the ancestor of the green plants, followed by differential loss of EF-1alpha or EFL in the principal clades of the Viridiplantae. In order to gain more insight in the distribution of EF-1alpha and EFL in green plants and test this hypothesis we screened the presence of the genes in a large sample of green algae and analyzed their gain-loss dynamics in a maximum likelihood framework using continuous-time Markov models. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Estonia | 3 | 5% |
Germany | 2 | 3% |
United States | 2 | 3% |
Peru | 1 | 2% |
Australia | 1 | 2% |
Unknown | 54 | 86% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 17 | 27% |
Researcher | 13 | 21% |
Student > Bachelor | 8 | 13% |
Student > Master | 5 | 8% |
Professor > Associate Professor | 4 | 6% |
Other | 11 | 17% |
Unknown | 5 | 8% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 50 | 79% |
Biochemistry, Genetics and Molecular Biology | 4 | 6% |
Environmental Science | 2 | 3% |
Earth and Planetary Sciences | 1 | 2% |
Unknown | 6 | 10% |