Phenotypic and genetic divergence in three species of dart-poison frogs with contrasting parental behavior

Article Abstract:

Sexual selection linked with female parental care is responsible for the divergence in color and pattern in Dendrobates pumilio, a dart-poison frog of Bocas del Toro in Panama. Such variations are absent in two other dart-poison frog species, Minyobates sp. and Phyllobates lugubris, due to lack of sexual selection in them. Divergence in mitochondrial DNA is similar in all the three species. Female choice for male ornamentation is strong in D. pumilio as the female provide more parental care than the males. The other two species show weak selection because the males provide more parental care.

Sexual behavior, Analysis, Natural history, Frogs, Mitochondrial DNA, Panama, Sexual selection in animals, Sexual selection (Natural selection), Parental behavior in animals, Animal parental behavior

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Microsatellite diversity in captive bottlenose dolphins (Tursiops truncatus)

Article Abstract:

A study was conducted to analyze the use of microsatellites for managing Tursiops truncatus. The level of genetic diversity among the loci was examined, including their usability for resolving paternity. DNA was obtained from an animal maintained by the US Navy to develop a genomic library. Heterozygosity was computed at each polymorphic locus to evaluate genetic diversity among the animals. Results indicated a low degree of genetic variation among the dolphins.

Genetic aspects, Dolphins, Dolphins (Mammals), Atlantic bottlenosed dolphin, Bottlenosed dolphins

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