INVESTIGADORES
GOANE Lucia
artículos
Título:
Effects of male nutrition on sperm storage and remating behavior in wild and laboratory Anastrepha fraterculus (Diptera: Tephritidae) females
Autor/es:
ABRAHAM, S.; GOANE, L.; CLADERA, J.; VERA, T.
Revista:
JOURNAL OF INSECT PHYSIOLOGY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2011 vol. 57 p. 1501 - 1509
ISSN:
0022-1910
Resumen:
Male physiological condition can affect his ability to modulate female sexual receptivity. Thus, studying
this aspect can have biological and practical implications. Here, we examine how male nutritional status
affected the amount of sperm stored, remating rate and refractory period of the tephritid fruit fly Anastrepha
fraterculus (Wiedemann) females. Both wild and laboratory flies were evaluated. We also examine
female sperm storage patterns. Experiments were carried out by manipulating male adult diet and exposing
these males to virgin females. Females mated with differently treated males were either dissected to
count the amount of sperm stored or exposed to virgin males to determine remating rate and the length
of the refractory period. We found that male nutritional status affected the amount of the sperm stored
and the renewal of sexual receptivity in wild flies. For laboratory flies, male nutritional status affected the
length of the refractory period but not the amount of sperm stored by females. In addition, we report that
the ventral receptacle is not an important organ of sperm storage in this species. We conclude that male
nutritional condition influences the ability to modulate female sexual receptivity, possibly through a
combination of the quantity and quality of the ejaculate. From an applied perspective, providing males
with an enriched diet will likely result in increased efficacy of the sterile insect techniqueAnastrepha
fraterculus (Wiedemann) females. Both wild and laboratory flies were evaluated. We also examine
female sperm storage patterns. Experiments were carried out by manipulating male adult diet and exposing
these males to virgin females. Females mated with differently treated males were either dissected to
count the amount of sperm stored or exposed to virgin males to determine remating rate and the length
of the refractory period. We found that male nutritional status affected the amount of the sperm stored
and the renewal of sexual receptivity in wild flies. For laboratory flies, male nutritional status affected the
length of the refractory period but not the amount of sperm stored by females. In addition, we report that
the ventral receptacle is not an important organ of sperm storage in this species. We conclude that male
nutritional condition influences the ability to modulate female sexual receptivity, possibly through a
combination of the quantity and quality of the ejaculate. From an applied perspective, providing males
with an enriched diet will likely result in increased efficacy of the sterile insect technique(Wiedemann) females. Both wild and laboratory flies were evaluated. We also examine
female sperm storage patterns. Experiments were carried out by manipulating male adult diet and exposing
these males to virgin females. Females mated with differently treated males were either dissected to
count the amount of sperm stored or exposed to virgin males to determine remating rate and the length
of the refractory period. We found that male nutritional status affected the amount of the sperm stored
and the renewal of sexual receptivity in wild flies. For laboratory flies, male nutritional status affected the
length of the refractory period but not the amount of sperm stored by females. In addition, we report that
the ventral receptacle is not an important organ of sperm storage in this species. We conclude that male
nutritional condition influences the ability to modulate female sexual receptivity, possibly through a
combination of the quantity and quality of the ejaculate. From an applied perspective, providing males
with an enriched diet will likely result in increased efficacy of the sterile insect technique