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Comparative mitogenomics, phylogeny and evolutionary history of Leptogorgia (Gorgoniidae)
- Source :
- Molecular Phylogenetics and Evolution, Molecular Phylogenetics and Evolution, Elsevier, 2017, 115, pp.181-189. 〈10.1016/j.ympev.2017.08.001〉, Molecular Phylogenetics And Evolution (1055-7903) (Academic Press Inc Elsevier Science), 2017-10, Vol. 115, P. 181-189, Molecular Phylogenetics and Evolution, Elsevier, 2017, 115, pp.181-189. ⟨10.1016/j.ympev.2017.08.001⟩, Molecular Phylogenetics and Evolution, 2017, 115, pp.181-189. ⟨10.1016/j.ympev.2017.08.001⟩
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- International audience; Molecular analyses of the ecologically important gorgonian octocoral genus Leptogorgia are scant and mostly deal with few species from restricted geographical regions. Here we explore the phylogenetic relationships and the evolutionary history of Leptogorgia using the complete mitochondrial genomes of six Leptogorgia species from different localities in the Atlantic, Mediterranean and eastern Pacific as well as four other genera of Gorgoniidae and Plexauridae. Our mitogenomic analyses showed high inter-specific diversity, variable nucleotide substitution rates and, for some species, novel genomic features such as ORFs of unknown function. The phylogenetic analyses using complete mitogenomes and an extended mtMutS dataset recovered Leptogorgia as polyphyletic, and the species considered in the analyses were split into two defined groups corresponding to different geographic regions, namely the eastern Pacific and the Atlantic-Mediterranean. Our phylogenetic analysis based on mtMutS also showed a clear separation between the eastern Atlantic and South African Leptogorgia, suggesting the need of a taxonomic revision for these forms. A time-calibrated phylogeny showed that the separation of eastern Pacific and western Atlantic species started ca. 20 Mya and suggested a recent divergence for eastern Pacific species and for L. sarmentosa-L. capverdensis. Our results also revealed high inter-specific diversity among eastern Atlantic and South African species, highlighting a potential role of the geographical diversification processes and geological events occurring during the last 30 Ma in the Atlantic on the evolutionary history of these organisms.
- Subjects :
- 0301 basic medicine
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Leptogorgia
Molecular phylogeny
[ SDE ] Environmental Sciences
Evolutionary history
03 medical and health sciences
Genus
Phylogenetics
Gorgonians
Polyphyly
Genetics
[ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment
Animals
14. Life underwater
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment
Molecular Biology
Phylogeny
Ecology, Evolution, Behavior and Systematics
Gorgoniidae
Plexauridae
Octocorals
biology
Phylogenetic tree
Ecology
Genetic Variation
[ SDU.STU ] Sciences of the Universe [physics]/Earth Sciences
DNA
Sequence Analysis, DNA
Mitochondrial Proton-Translocating ATPases
Anthozoa
biology.organism_classification
Biological Evolution
Mitochondria
Mitogenome
030104 developmental biology
RNA, Ribosomal
Evolutionary biology
[SDE]Environmental Sciences
Molecular phylogenetics
Subjects
Details
- Language :
- English
- ISSN :
- 10557903 and 10959513
- Database :
- OpenAIRE
- Journal :
- Molecular Phylogenetics and Evolution, Molecular Phylogenetics and Evolution, Elsevier, 2017, 115, pp.181-189. 〈10.1016/j.ympev.2017.08.001〉, Molecular Phylogenetics And Evolution (1055-7903) (Academic Press Inc Elsevier Science), 2017-10, Vol. 115, P. 181-189, Molecular Phylogenetics and Evolution, Elsevier, 2017, 115, pp.181-189. ⟨10.1016/j.ympev.2017.08.001⟩, Molecular Phylogenetics and Evolution, 2017, 115, pp.181-189. ⟨10.1016/j.ympev.2017.08.001⟩
- Accession number :
- edsair.doi.dedup.....e9d4f009ae39cdc740b7089a8f87cc6d