Precocious sexual signalling and mating in Anastrepha fraterculus (Diptera: Tephritidae) sterile males achieved through juvenile hormone treatment and protein supplements

Authors
Liendo, María Clara; Devescovi, Francisco; Bachmann, Guillermo Enrique; Utgés, María Eugenia; Abraham, Solana; Vera, María Teresa; Lanzavecchia, Silvia Beatriz; Bouvet, Juan Pedro Raúl; Gómez Cendra, Paula Valeria; Hendrichs, J.; Teal, P. E. A.; Cladera, Jorge Luis; Segura, Diego Fernando
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Sexual maturation of Anastrepha fraterculus is a long process, which creates an additional cost to the management of this fruit pest through the sterile insect technique (SIT). Methoprene (a mimic of juvenile hormone) considerably reduces the time for sexual maturation in males. However, in other Anastrepha species, this effect depends on protein intake at the adult stage. Here, we evaluated the mating competitiveness of sterile laboratory males and females that were treated with methoprene (either at pupal or adult stage) and were kept under different regimes of adult food, which varied in the protein source and the sugar:protein ratio. Experiments were carried out under semi-natural conditions, where laboratory flies competed for mating with wild sexually mature flies. Sterile, methoprene treated males that reached sexual maturity earlier (6 days-old), displayed the same lekking behaviour, attractiveness to females and mating competitiveness as mature wild males. Yet, this effect depended on protein intake. Diets containing sugar and hydrolyzed yeast allowed sterile males to compete with wild males(even at a low concentration of protein) while brewer´s yeast failed to do so even at a higher concentration. Sugar only fed males were unable to achieve significant numbers of matings. Methoprene did not increased readiness to mate on 6-days-old sterile females. These findings suggest that methoprene treatment will increase SIT effectiveness against A. fraterculus only if it is coupled with a diet fortified with protein. Additionally, methoprene acts as a physiological sexing method, allowing the release of mature males and immature females and hence increasing SIT efficiency.
Fil: Liendo, María Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Devescovi, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bachmann, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Utgés, María Eugenia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Abraham, Solana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina
Fil: Vera, María Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Genética; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bouvet, Juan Pedro Raúl. Estación Experimental Agropecuaria Concordia; Argentina
Fil: Gómez Cendra, Paula Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Hendrichs, J.. Programme of Nuclear Techniques in Food and Agriculture. Insect Pest Control Section; Austria
Fil: Teal, P. E. A.. United States Department of Agriculture; Estados Unidos
Fil: Cladera, Jorge Luis. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Genética; Argentina
Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Genética; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Subject
STERILE INSECT TECHNIQUE
MATING COMPETITIVENESS
LEKKING BEHAVIOUR
JUVENILE HORMONE
METHOPRENE
NUTRITION
SEXUAL MATURATION
Zoología, Ornitología, Entomología, Etología
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/21278