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Genetic variation in two morphotypes of Porites panamensis from the Gulf of California, Mexico
DAVID ARTURO PAZ GARCIA
Héctor Reyes Bonilla
MARTHA PATRICIA HERNANDEZ CORTES
Acceso Abierto
Atribución-NoComercial-SinDerivadas
URL: https://nsuworks.nova.edu/occ_icrs/1/
ISBN: 9780984387151
Species complex, genetic structure, Scleractinian coral, population genetics
"Genetic variation was analyzed to determine whether two morphotypes, a massive and columnar form, of Porites panamensis found together in the Gulf of California (GC) were genetically differentiated. Levels of genetic variation were similar between morphotypes and no fixed alleles were detected between them. Levels of sexual reproduction were high, as indicated by ratios NG:N 0.76-1.00 and GO:GE 0.71-1.00 for both morphotypes. Analysis of Molecular Variation (AMOVA) indicated the greatest significant genetic variation within populations (97.85%) and among populations within morphotypes levels (2.63%), but not among morphotypes (-0.47%, p = 0.6826). Mean significant FST values for columnar (FST = 0.024) and massive (FST = 0.043) suggest that both morphotypes had moderate genetic structure within their populations. The number of migrants per generation (Nem) showed differences within morphotype populations (columnar 4.65-31 and massive 2.65-9.75). The lower genetic differentiation among morphotypes indicates that it is likely that they frequently interbreed. However, we observed a genetic differentiation among the populations of the morphotypes of P. panamensis in the north and central part of the GC, while in the south of the GC the populations of both the morphotypes are more similar and may constitute a population that is more genetically homogeneous. North-central coral communities from the GC are characterized by extreme temperature and nutrients conditions and adaptation to this stress environment may be reflected in our genetic data."
National Coral Reef Institute (U.S.)
2008
Capítulo de libro
Proceedings of the 11th International Coral Reef Symposium: Fort Lauderdale, Florida, USA, July 7-11, 2008
Inglés
GENÉTICA DE POBLACIONES
Versión publicada
publishedVersion - Versión publicada
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