Document Detail

Remating behavior in Anastrepha fraterculus (Diptera: Tephritidae) females is affected by male juvenile hormone analog treatment but not by male sterilization.
MedLine Citation:
PMID:  23340454     Owner:  NLM     Status:  Publisher    
The sterile insect technique (SIT) has been proposed as an area-wide method to control the South American fruit fly, Anastrepha fraterculus (Wiedemann). This technique requires sterilization, a procedure that affects, along with other factors, the ability of males to modulate female sexual receptivity after copulation. Numerous pre-release treatments have been proposed to counteract the detrimental effects of irradiation, rearing and handling and increase SIT effectiveness. These include treating newly emerged males with a juvenile hormone mimic (methoprene) or supplying protein to the male's diet to accelerate sexual maturation prior to release. Here, we examine how male irradiation, methoprene treatment and protein intake affect remating behavior and the amount of sperm stored in inseminated females. In field cage experiments, we found that irradiated laboratory males were equally able to modulate female remating behavior as fertile wild males. However, females mated with 6-day-old, methoprene-treated males remated more and sooner than females mated with naturally matured males, either sterile or wild. Protein intake by males was not sufficient to overcome reduced ability of methoprene-treated males to induce refractory periods in females as lengthy as those induced by wild and naturally matured males. The amount of sperm stored by females was not affected by male irradiation, methoprene treatment or protein intake. This finding revealed that factors in addition to sperm volume intervene in regulating female receptivity after copulation. Implications for SIT are discussed.
S Abraham; M C Liendo; F Devescovi; P A Peralta; V Yusef; J Ruiz; J L Cladera; M T Vera; D F Segura
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Bulletin of entomological research     Volume:  -     ISSN:  1475-2670     ISO Abbreviation:  Bull. Entomol. Res.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984715R     Medline TA:  Bull Entomol Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-8     Citation Subset:  -    
Cátedra de Terapéutica Vegetal, Departamento de Sanidad Vegetal de la Facultad de Agronomía y Zootecnia de la UNT, Tucumán, Argentina.
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