Hybridization among the ancient mariners: characterization of marine turtle hybrids with molecular genetic assays

Article Abstract:

Natural hybridization of marine turtles can be determined because the hybrid carries a maternal molecular marker in mitochondrial DNA. Models of hybrids involving eight marine turtle species are examined against DNA observations. Research also shows that this feature was existent in pre-historic times when there was maximum hybridization. However, though the matings appear common, viable offspring have not be widely discovered and therefore human intervention to encourage hybridization may result in the extinction of marine turtles and so care must be taken.

Hybridization, Animal reproduction, Sea turtles

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Sex-linked markers facilitate genetic parentage analyses in knobbed whelk broods

Article Abstract:

A recently discovered 'X-linked' microsatellite marker is used to deduce the biological paternity and maternity for large numbers of encapsulated embryos within individual breeds of the knobbed whelk. The three ways in which a sex-linked polymorphism contributes to genetic parentage assessments in highly fecund are highlighted using empirical data from an X-linked microsatellite locus in a marine mollusk.

Science & research, Genetic aspects, Genetic polymorphisms, Genetic research, Mollusks, X chromosome

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Turtle mating systems: Behavior, sperm storage, and genetic paternity

Article Abstract:

Genetic studies into mating and reproduction among fresh water and marine turtles are presented, with focus on long-term sperm storage and multiple paternity.

Sexual behavior, Sexual behavior in animals, Animal sexual behavior, Turtles

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