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CONICET Digital
Article . 2006
License: CC BY NC SA
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Mating incompatibility among populations of the south american fruit fly Anastrepha fraterculus (Wied.) (Diptera: Tephritidae).

Authors: Vera, María Teresa; Cáceres, Carlos; Wornayporn, Viwat; Islam, Amirul; Robinson, Alan S.; de la Vega, Marcelo Horacio; Hendrichs, J.; +1 Authors

Mating incompatibility among populations of the south american fruit fly Anastrepha fraterculus (Wied.) (Diptera: Tephritidae).

Abstract

Se evaluó la compatibilidad para el apareamiento entre distintas poblaciones de la mosca Sudamericana de la fruta, Anastrepha fraterculus (Wiedemann), mediante pruebas de apareamiento confrontando dos poblaciones por vez. Se utilizaron jaulas con árboles de Citrus limon (L.) en un invernadero. La compatibilidad para el apareamiento se determinó con el ṍndice de aislamiento sexual. La mayorṍa de las poblaciones fueron no compatibles y consecuentemente estuvieron aisladas entre sṍ. Entre estas, las poblaciones de Tucumán (Argentina) y Piracicaba (Brasil) presentaron el menor grado de aislamiento, mientras que las otras presentaron alto aislamiento. Se detectó compatibilidad solamente entre dos poblaciones argentinas (Concordia y Tucumán) y dos poblaciones peruanas (La Molina y Piura ⫹ La Molina). Las poblaciones estuvieron sexualmente activas en distintos momentos del día: Tucumán, Concordia y Piracicaba presentaron un pico de actividad al amanecer, La Molina y Piura ⫹ La Molina al mediodía e Ibague (Colombia) al atardecer. La manipulación de los horarios del ciclo de luz-oscuridad, para coincidir la hora de máxima actividad sexual, no aumentó la compatibilidad entre La Molina y Tucumán. Basándonos en estos resultados comportamentales, que confirman las evidencias genéticas y morfológicas registradas, es necesaria una revisión taxonómica de este complejo de especies. Una consecuencia práctica sería que las colonias a utilizar para la cría masiva de insectos estériles para la implementación de la técnica del insecto estéril para el control de esta plaga deben originarse de la población a controlar o de una población compatible. Se deben iniciar esfuerzos regionales para determinar la distribución de cada subgrupo y su relación en términos de compatibilidad.

Mating compatibility among different populations of the South American fruit fly, Anastrepha fraterculus (Wiedemann) was assessed through mating tests in pairwise combinations. Screened cages, inside a greenhouse, containing Citrus trees were used. Mating compatibility was determined using the Index of Sexual Isolation. Most of the populations were non-compatible with each other and thus sexually isolated. Of these, Tucumán (Argentina) and Piracicaba (Brazil) populations showed a lower degree of isolation, while the other tested combinations were highly isolated. Full mating compatibility was detected only between two Argentinean (Concordia and Tucumán) and two Peruvian populations (La Molina and Piura+La Molina). Flies were sexually active at different times of the day: Tucumán, Concordia and Piracicaba populations presented an early morning peak, La Molina and Piura+La Molina were active around midday and Ibague (Colombia) late in the afternoon. Manipulation of light-phase conditions, to match the times of maximum sexual activity, did not increase the compatibility between La Molina and Tucumán. Based on these behavioral results, which confirm morphometric, genetic and other evidence, the taxonomic revision of this cryptic species complex is warranted. One practical implication is that colonies of this pest to be used in any sterile insect technique approach should be derived from the target population or from a compatible one. Regional efforts should be initiated to determine the distribution of each subgroup and their relationship with each other in terms of compatibility.

Fil: Vera, María Teresa. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina

Fil: de la Vega, Marcelo Horacio. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia; Argentina

Fil: Hendrichs, J.. Division of Nuclear Techniques in Food and Agriculture; Austria

Fil: Cayol, J-P. Division of Nuclear Techniques in Food and Agriculture; Austria

Fil: Wornayporn, Viwat. Agriculture and Biotechnology Laboratory; Austria

Fil: Robinson, Alan S.. Agriculture and Biotechnology Laboratory; Austria

Fil: Cáceres, Carlos. Agriculture and Biotechnology Laboratory; Austria

Fil: Islam, Amirul. Agriculture and Biotechnology Laboratory; Austria

Country
Argentina
Keywords

Temporal Isolation, Cryptic Species Complex, https://purl.org/becyt/ford/4.5, Sterile Insect Technique, Reproductive Compatibility, https://purl.org/becyt/ford/4, Sexual Isolation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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