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Role and expression of cry1 in the adductor muscle of the oyster Crassostrea gigas during daily and tidal valve activity rhythms
Daily and tidal valve movements linked to cry1 gene activity in oyster muscle
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Abstract
The gene Cgcry1 in the oyster Crassostrea gigas shows daily oscillation under light:dark cycles and tidal entrainment.
- Cgcry1 is associated with the oyster's rhythmic valve behavior and may function as a sensor for environmental cues.
- The gene belongs to the type 1 cryptochrome family, specifically the insect-type cry.
- Expression of Cgcry1 oscillated in a daily pattern under light:dark conditions but ceased in constant darkness.
- Under tidal entrainment, transcript levels of Cgcry1 also oscillated with tidal frequency, even in constant darkness.
- Exposure to saxitoxin from the alga Alexandrium minutum altered Cgcry1 expression and affected oyster behavior in a dose-dependent manner.
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