Phylogeny of Opsanus spp. (Batrachoididae) inferred from multiple mitochondrial-DNA sequences

Autor:	S. K. Sarver, D. W. Freshwater, Patrick J. Walsh, C. Khyn-Hansen
Rok vydání:	2000
Předmět:	Mitochondrial DNA Ecology Phylogenetic tree biology Cytochrome b Lineage (evolution) Allopatric speciation Aquatic Science biology.organism_classification Divergent evolution Opsanus Phylogenetics Evolutionary biology Ecology Evolution Behavior and Systematics
Zdroj:	Marine Biology. 136:961-968
ISSN:	1432-1793 0025-3162
DOI:	10.1007/s002270000315
Popis:	Species of the toadfish genus Opsanus are increasingly used as experimental organisms in biomedicine and evolutionary/ecological physiology. Despite their importance, little is known of the phylogenetic relationships among Opsanus species. DNA sequence data for portions of the mitochondrial 12S rRNA, cytochrome oxidase I and cytochrome b genes were generated and analyzed from the four recognized Opsanus species and three outgroup taxa. Results of these analyses indicate an evolutionarily rapid divergence of three lineages within the genus. O. beta and O. pardus were resolved within the same lineage, and could not be distinguished with these mitochondrial sequence data. These data and paleoclimatic theory support a hypothesis of speciation based on the formation of allopatric populations during periods of elevated water temperature in the northern Caribbean.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0bc4531261f2edbc303c64ba19eb91b5 https://doi.org/10.1007/s002270000315 Zobrazit plný text záznamu Full text from SpringerLink