Dear Marmam readers,
We have sequenced some microsatellite markers in the striped dolphin (Stenella
coeruleoalba) and we are comparing these sequences to their orthologous
counterparts in the bottlenose dolphin (Tursiops truncatus) from which the
microsatellites were originally isolated.
To discuss this comparison, we would wish to know about the divergence time
between both species.
So far, the only indication we have is that the Family Delphinidae likely
arose in the mid- to late Miocene (11-12 mya, Barnes 1990), suggesting a
divergence time inferior to 12 My between S. coeruleoalba and T. truncatus.
Would anyone have a more accurate / updated information (and the corresponding
reference)?
Thank you very much in advance.
Best regards,
Vincent.
-----
Vincent Bourret, DVM
UMR 5174 Evolution et Diversité Biologique
Bât 4R3b2
Université Paul Sabatier,
118, route de Narbonne,
31062 Toulouse cedex, France.
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