Population genetic structure, coloration, and morphometrics of yellowhead jawfish Opistognathus aurifrons (Perciformes: Opistognathidae) in the Caribbean region
| Autor: | Junda Lin, Christin L. Pruett, Adeljean L. F. C. Ho |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
mtDNA control region
Morphometrics education.field_of_study Ecology biology Cytochrome c oxidase subunit I Population Opistognathus Population genetics Yellowhead jawfish Aquatic Science biology.organism_classification Evolutionary biology Genetic structure education Ecology Evolution Behavior and Systematics |
| Zdroj: | Marine Ecology Progress Series. 444:275-287 |
| ISSN: | 1616-1599 0171-8630 |
| DOI: | 10.3354/meps09435 |
| Popis: | We investigated intraspecific variability in phenotype and population genetic structure of yellowhead jawfish Opistognathus aurifrons from 4 different locations in the Caribbean region: South Florida (USA), Bimini (Bahamas), St. Thomas (US Virgin Islands), and Aruba. Dis- criminant function analysis (DFA) of 9 melanistic traits in the head region resulted in clear separation between Bimini and the other 3 populations. South Florida, St. Thomas, and Aruba slightly overlapped in patterning, with St. Thomas forming the transition between South Florida and Aruba. DFA of 17 morphometric characters elucidated differentiation among the 4 populations with some overlap between populations. Analysis of concatenated cytochrome c oxidase subunit I (COI) and mitochondrial control region (mtCR) sequences revealed substantial differences among O. aurifrons populations (pairwise ΦST = 0.185�0.566), although there was a lack of reciprocal monophyly. Differences in patterning and morphometrics constituted different phenotypes that predominated in each location, with high levels of genetic differentiation between sampled populations. Bimini was most divergent in phenotype, while Aruba was most divergent in genetics. As such, variations in phenotype and genetics are not congruent for O. aurifrons investigated in this study. |
| Databáze: | OpenAIRE |
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