Autor(es): RAINA, AK; KINGAN, TG; GIEBULTOWICZ, JM

Resumo: Mating in most species of insects leads to a transient or permanent loss in sexual receptivity of the females. Among moths, this loss of receptivity is often accompanied with a loss of the sex pheromone in the absence of calling, which also could be temporary or permanent. Most of the earlier work on changes in reproductive behavior after mating was done with Diptera in which sperm and/or male accessory gland secretions were shown to be responsible for termination of receptivity. In the corn earworm moth, Helicoverpa tea, mated females become depleted of pheromone and become nonreceptive to further mating attempts, but only for the remainder of the night of mating. A pheromonostatic peptide isolated from the accessory glands of males may be responsible for the depletion of pheromone, while the termination of receptivity is independently controlled. In the gypsy moth, Lymantria dispar, the changes in behavior following mating are permanent. In this species, the switch from virgin to mated behavior involves three steps: a physical stimulation associated with mating, transfer of viable sperm to the spermatheca, and commencement of oviposition. Signals generated by these factors operate through neural pathways and, unlike in H. tea, accessory gland factors seem not to be involved. (C) 1994 Wiley-Liss, Inc.

Palavras-Chave: Male Accessory Glands; Pheromonostatic Peptides; Sperm Transfer; Corn Earworm; Gypsy Moth; Diptera

Imprenta: Archives of Insect Biochemistry and Physiology, v. 25, n. 4, p. 317-327, 1994

Identificador do objeto digital: 10.1002/arch.940250407

Descritores: Aedes aegypti - Sexual

Data de publicação: 1994

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