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Annu Rev Entomol. 2011;56:21-40. doi: 10.1146/annurev-ento-120709-144823.

Insect seminal fluid proteins: identification and function.

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Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853, USA.


Seminal fluid proteins (SFPs) produced in reproductive tract tissues of male insects and transferred to females during mating induce numerous physiological and behavioral postmating changes in females. These changes include decreasing receptivity to remating; affecting sperm storage parameters; increasing egg production; and modulating sperm competition, feeding behaviors, and mating plug formation. In addition, SFPs also have antimicrobial functions and induce expression of antimicrobial peptides in at least some insects. Here, we review recent identification of insect SFPs and discuss the multiple roles these proteins play in the postmating processes of female insects.

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