Q.90
Which gene is not responsible for milt hydration in teleost?
- Physiology of Milt Hydration (Fluidization):
- Just prior to spawning, teleost semen undergoes dramatic fluidization and dilution (milt hydration) to allow free sperm motility upon ejaculation into water.
- This process is mediated by rapid fluid and ion fluxes into the sperm duct lumen driven by:
- Aquaporins (e.g., Aqp1b, Aqp4) providing water channels.
- Ion Transporters and Channels (e.g., ATPase $\alpha/\beta$ subunits, two-pore domain potassium channels K15).
- Insulin-like Growth Factor (IGF): A peptide hormone regulating somatic growth and germ cell mitotic proliferation; it does not act as an acute effector channel/transporter in milt hydration.
- nalysis:
- (Insulin-like growth factor): Correct.
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