Título
Genetic diversity of commercial species of the tilapia genus Oreochromis in Mexico
Autor
BREIDY LIZETH CUEVAS RODRIGUEZ
Nivel de Acceso
Acceso Abierto
Materias
CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI) Fish - ([International journal of aquatic science. Vol. 5 (1). 2014]) Genetic diversity - ([International journal of aquatic science. Vol. 5 (1). 2014]) DNA markers - ([International journal of aquatic science. Vol. 5 (1). 2014]) Microsatellites - ([International journal of aquatic science. Vol. 5 (1). 2014])
Resumen o descripción
Molecular techniques such as the DNA markers are commonly used to examine intra and
interpopulation variation among fish strains. The objetive of this work was to analyze the genetic diversity of
three tilapia species (Oreochromis aureus , O. mossambicus and O. niloticus ) cultured in Mexico, through the
DNA markers, genetic and allele frequencies, number of alleles, endogamy, estimated and expected
heterozygosity (He), and conformation of Hardy Weingberg, (H-W). After 150 culture days, a total of 24
individuals for each fish species were genotyped using a panel of 8 microsatellite markers. The result showed
that the mean number of alleles per locus and heterozygosity for each tilapia species were 19 and 0.442,
respectively. The diversity indices showed that O. aureus was more variable (He=0.813) followed by O.
niloticus (HE=0.789) and O. mossambicus (HE = 0.552). Mean endogamy values fluctuated from 0.314 for O.
niloticus to 0.436 for O. aureus . Highly significant deviations in most of loci of three species, and all diversity
parameters suggested non-random mating in populations studied. The results in this study contribute to the
knowledge of the genetic pool of the commercial tilapia species in Mexico
Editor
IJAS
Fecha de publicación
3 de enero de 2014
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
International journal of aquatic science. Vol. 5 (1). 2014
Idioma
Inglés
Repositorio Orígen
Repositorio de acceso abierto a la información científica, tecnológica y de innovación del centro de biotecnología genómica del IPN: Doctorado en Ciencias en Biotecnología en Red del IPN
Descargas
0