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Daily and tidal valve movements linked to cry1 gene activity in oyster muscle
Updated
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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