We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Variabilidad mitocondrial del dorado Coryphaena hippurus en poblaciones del Pacífico.
- Authors
Rocha-Olivares, A.; Bobadilla-Jiménez, M.; Ortega-García, S.; Saavedra-Sotelo, N.; Sandoval-Castillo, J. R.
- Abstract
Patterns of genetic structure among marine populations involve a variety of dispersal mechanisms and spatial scales. Pelagic species, such as the dolphinfish Coryphaena hippurus, epitomize the open and continuous nature of the marine environment due to their extensive migrations. Many studies have revealed that oceanic pelagic species tend to be genetically homogeneous over local and often extended geographic scales and only show levels of differentiation among extreme localities or ocean basins. Here we present genetic data suggesting genetic heterogeneity in the dolphinfish at geographic scales much smaller than those predicted by those generalizations. Mitochondrial NADH1 gene RFLPs revealed a highly significant (FST = 0.029, P = 0.004, AMOVA) molecular genetic structure among fish from Baja California Sur (BCS), Sinaloa and Hawaii, consistent with heterogeneous haplotype frequencies (P = 0.014, exact test of genetic differentiation) and a depressed molecular diversity in fish sampled off BCS.
- Subjects
PACIFIC Ocean; DOLPHINFISHES; CORYPHAENA hippurus; MARINE organisms; MITOCHONDRIA; GENES; MOLECULAR genetics; BIODIVERSITY; MARINE ecology
- Publication
Ciencias Marinas, 2006, Vol 32, Issue 3, p569
- ISSN
0185-3880
- Publication type
Article
- DOI
10.7773/cm.v32i3.1122