Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment

We evaluated under semi-natural field cage conditions sexual compatibility and competitiveness of a laboratory strain (LAB) compared to a wild population (TUC) of Anastrepha fraterculus (Wiedemann). The LAB strain is produced under semi-mass rearing conditions at the Estación Experimental Agroindust...

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Autores principales: Calcagno, Graciela Elena, Segura, Diego Fernando, Vera, María Teresa, Cladera, Jorge Luis, Vilardi, Juan Cesar
Publicado: 2007
Materias:
Anastrepha fraterculus
Fruit fly
Irradiation
Mating compatibility
Mating indices
Tephritidae
fly
intraspecific competition
irradiation
laboratory method
mating success
sterile release method
Diptera
Psidium
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v90_n1_p27_Allinghi
http://hdl.handle.net/20.500.12110/paper_00154040_v90_n1_p27_Allinghi
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_00154040_v90_n1_p27_Allinghi2023-06-08T14:38:01Z Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment Calcagno, Graciela Elena Segura, Diego Fernando Vera, María Teresa Cladera, Jorge Luis Vilardi, Juan Cesar Anastrepha fraterculus Fruit fly Irradiation Mating compatibility Mating indices Tephritidae fly intraspecific competition irradiation laboratory method mating success sterile release method Anastrepha fraterculus Diptera Psidium Tephritidae We evaluated under semi-natural field cage conditions sexual compatibility and competitiveness of a laboratory strain (LAB) compared to a wild population (TUC) of Anastrepha fraterculus (Wiedemann). The LAB strain is produced under semi-mass rearing conditions at the Estación Experimental Agroindustrial Obispo Colombres facility (Tucumán, Argentina). Wild flies were obtained at Horco Molle (Tucumán, Argentina) from infested guava fruits. LAB pupae were irradiated (60Co) 48 h before adult emergence. The tested doses were 0 (control), 40, 70, and 100 Gy. Twenty-five males and 25 females each of TUC and LAB were released into cages and mating pairs collected. Only 1 irradiation dose was considered at a time. Females were separated and allowed to lay eggs into artificial fruits to estimate induced sterility from the corresponding hatching rate. Copulation start time did not differ significantly between strains nor among irradiation treatments. Copulation duration showed highly significant differences among irradiation doses, but no differences between strains. The index of sexual isolation (ISI) and the relative sterility index (RSI) indices indicated that LAB and TUC are fully compatible, males from TUC and LAB did not differ in mating competitiveness, and irradiation within the range tested did not affect these indices. Non-irradiated LAB females exhibited higher mating propensity than TUC ones. However, a significant reduction in the female relative performance index (FRPI) index was observed with increasing irradiation dose. The analysis of induced sterility indicated that treatment with 40 Gy reduces male fertility from about 80% to 0.75%, and higher doses produce total sterility. In females, the 40 Gy dose reduces fertility to about 2% and higher doses prevent egg laying. Fil:Calcagno, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Segura, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vera, T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cladera, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vilardi, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v90_n1_p27_Allinghi http://hdl.handle.net/20.500.12110/paper_00154040_v90_n1_p27_Allinghi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Anastrepha fraterculus
Fruit fly
Irradiation
Mating compatibility
Mating indices
Tephritidae
fly
intraspecific competition
irradiation
laboratory method
mating success
sterile release method
Anastrepha fraterculus
Diptera
Psidium
Tephritidae
spellingShingle Anastrepha fraterculus
Fruit fly
Irradiation
Mating compatibility
Mating indices
Tephritidae
fly
intraspecific competition
irradiation
laboratory method
mating success
sterile release method
Anastrepha fraterculus
Diptera
Psidium
Tephritidae
Calcagno, Graciela Elena
Segura, Diego Fernando
Vera, María Teresa
Cladera, Jorge Luis
Vilardi, Juan Cesar
Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
topic_facet Anastrepha fraterculus
Fruit fly
Irradiation
Mating compatibility
Mating indices
Tephritidae
fly
intraspecific competition
irradiation
laboratory method
mating success
sterile release method
Anastrepha fraterculus
Diptera
Psidium
Tephritidae
description We evaluated under semi-natural field cage conditions sexual compatibility and competitiveness of a laboratory strain (LAB) compared to a wild population (TUC) of Anastrepha fraterculus (Wiedemann). The LAB strain is produced under semi-mass rearing conditions at the Estación Experimental Agroindustrial Obispo Colombres facility (Tucumán, Argentina). Wild flies were obtained at Horco Molle (Tucumán, Argentina) from infested guava fruits. LAB pupae were irradiated (60Co) 48 h before adult emergence. The tested doses were 0 (control), 40, 70, and 100 Gy. Twenty-five males and 25 females each of TUC and LAB were released into cages and mating pairs collected. Only 1 irradiation dose was considered at a time. Females were separated and allowed to lay eggs into artificial fruits to estimate induced sterility from the corresponding hatching rate. Copulation start time did not differ significantly between strains nor among irradiation treatments. Copulation duration showed highly significant differences among irradiation doses, but no differences between strains. The index of sexual isolation (ISI) and the relative sterility index (RSI) indices indicated that LAB and TUC are fully compatible, males from TUC and LAB did not differ in mating competitiveness, and irradiation within the range tested did not affect these indices. Non-irradiated LAB females exhibited higher mating propensity than TUC ones. However, a significant reduction in the female relative performance index (FRPI) index was observed with increasing irradiation dose. The analysis of induced sterility indicated that treatment with 40 Gy reduces male fertility from about 80% to 0.75%, and higher doses produce total sterility. In females, the 40 Gy dose reduces fertility to about 2% and higher doses prevent egg laying.
author Calcagno, Graciela Elena
Segura, Diego Fernando
Vera, María Teresa
Cladera, Jorge Luis
Vilardi, Juan Cesar
author_facet Calcagno, Graciela Elena
Segura, Diego Fernando
Vera, María Teresa
Cladera, Jorge Luis
Vilardi, Juan Cesar
author_sort Calcagno, Graciela Elena
title Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
title_short Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
title_full Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
title_fullStr Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
title_full_unstemmed Compatibility and competitiveness of a laboratory strain of Anastrepha fraterculus (Diptera: Tephritidae) after irradiation treatment
title_sort compatibility and competitiveness of a laboratory strain of anastrepha fraterculus (diptera: tephritidae) after irradiation treatment
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v90_n1_p27_Allinghi
http://hdl.handle.net/20.500.12110/paper_00154040_v90_n1_p27_Allinghi
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