Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)

Males with a larger thorax and narrower face were found to be favoured by directional sexual selection in a previous field cage experiment where Ceratitis capitata males from the Seib 6-96 genetic sexing strain competed with wild males from Alto Valle (Patagonia) for the possession of wild females....

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Detalles Bibliográficos
Publicado: 2002
Materias:
Assortative mating
Ceratitis capitata
Correlational selection
Female choice
Genetic sexing strains
Morphometric traits
morphometry
phenotype
sexual selection
Animals
Body Constitution
Female
Male
Multivariate Analysis
Selection (Genetics)
Thorax
Capitata
Ceratitis
Diptera
Tephritidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v89_n6_p480_Rodriguero
http://hdl.handle.net/20.500.12110/paper_0018067X_v89_n6_p480_Rodriguero
Aporte de:
Aportado por : Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires .
id paper:paper_0018067X_v89_n6_p480_Rodriguero
record_format dspace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Assortative mating
Ceratitis capitata
Correlational selection
Female choice
Genetic sexing strains
Morphometric traits
morphometry
phenotype
sexual selection
Animals
Body Constitution
Ceratitis capitata
Female
Male
Multivariate Analysis
Selection (Genetics)
Thorax
Capitata
Ceratitis
Ceratitis capitata
Diptera
Tephritidae
spellingShingle Assortative mating
Ceratitis capitata
Correlational selection
Female choice
Genetic sexing strains
Morphometric traits
morphometry
phenotype
sexual selection
Animals
Body Constitution
Ceratitis capitata
Female
Male
Multivariate Analysis
Selection (Genetics)
Thorax
Capitata
Ceratitis
Ceratitis capitata
Diptera
Tephritidae
Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
topic_facet Assortative mating
Ceratitis capitata
Correlational selection
Female choice
Genetic sexing strains
Morphometric traits
morphometry
phenotype
sexual selection
Animals
Body Constitution
Ceratitis capitata
Female
Male
Multivariate Analysis
Selection (Genetics)
Thorax
Capitata
Ceratitis
Ceratitis capitata
Diptera
Tephritidae
description Males with a larger thorax and narrower face were found to be favoured by directional sexual selection in a previous field cage experiment where Ceratitis capitata males from the Seib 6-96 genetic sexing strain competed with wild males from Alto Valle (Patagonia) for the possession of wild females. Targets of sexual selection, however, might differ between wild and laboratory females as a response to adaptation to mass-rearing conditions. To evaluate possible divergences on the targets of sexual selection as a by-product of adaptation to mass-rearing conditions, field cage tests were performed with both wild and laboratory females. To avoid possible bias due to correlation among the measured traits (eye length [EL], face width [FW], head width [HW], and thorax length [TL]), a multivariate analysis was applied. Consistent with the previous experiment, the results indicated that TL and FW are probable targets of directional sexual selection independently of female strain. However, laboratory females were less selective than wild ones. Additionally, correlational sexual selection was detected acting on the multivariate phenotype. The effects of correlational selection overlap with those of directional selection on each single trait. The analysis of mating pair characteristics showed patterns that do not match the expectations for a random mating system. The current analysis indicates that during mating pair formation two processes overlap. On the one hand, sexual selection favours males with larger size (TL) and narrower faces (FW). This effect occurs in both wild and laboratory females. In addition, assortative mating based on both phenotype and origin was also observed.
title Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
title_short Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
title_full Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
title_fullStr Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
title_full_unstemmed Sexual selection on multivariate phenotype in wild and mass-reared Ceratitis capitata (Diptera: Tephritidae)
title_sort sexual selection on multivariate phenotype in wild and mass-reared ceratitis capitata (diptera: tephritidae)
publishDate 2002
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v89_n6_p480_Rodriguero
http://hdl.handle.net/20.500.12110/paper_0018067X_v89_n6_p480_Rodriguero
bdutipo_str Repositorios
_version_ 1764820558468349953

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