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12/27/2015 11:07 AM ID: 101460 Permalink   

Study Explains How Temperature Determines Sex of Alligators


The sex of many crocodilian and turtle species is largely determined by temperature during incubation, researchers say.

Scientists have known for quite some time that 33 degrees Celsius seemingly produces males and incubation at 30 degrees Celsius produces mostly females.

New to them, however, is the thermosensor protein TRPV4 that is involved in the process of temperature-dependent sex determoination and located within the developing gonad inside the egg. It is responsive to warm temperatures near mid-30s, and can activate cell signaling by inducing calcium ion influx.

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