The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?

Previous work has shown fitness differences among chromosomal arrangements by means of selection component analysis in two Drosophila buzzatii natural populations, one of which is native to Argentina and the other a colonized population from Carboneras, Spain. Founder effects or niche shifts were pr...

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Detalles Bibliográficos
Autores principales: Fanara, Juan Jose, Hasson, Esteban Ruben, Rodríguez, Constantina
Publicado: 1996
Materias:
cactus hosts
Drosophila buzzatii
habitat selection
inversion polymorphism
natural selection
Cactaceae
Diptera
Drosophilidae
Opuntia
Opuntia ficus-indica
Opuntia quimilo
evolutionary history
host plant
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v77_n5_p500_Fanara
http://hdl.handle.net/20.500.12110/paper_0018067X_v77_n5_p500_Fanara
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0018067X_v77_n5_p500_Fanara
record_format dspace
spelling paper:paper_0018067X_v77_n5_p500_Fanara2023-06-08T14:39:24Z The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism? Fanara, Juan Jose Hasson, Esteban Ruben Rodríguez, Constantina cactus hosts Drosophila buzzatii habitat selection inversion polymorphism natural selection Drosophila buzzatii Cactaceae Diptera Drosophila buzzatii Drosophilidae Opuntia Opuntia ficus-indica Opuntia quimilo evolutionary history habitat selection host plant inversion polymorphism natural selection Previous work has shown fitness differences among chromosomal arrangements by means of selection component analysis in two Drosophila buzzatii natural populations, one of which is native to Argentina and the other a colonized population from Carboneras, Spain. Founder effects or niche shifts were proposed to explain the differences observed in the pattern of pleiotropic effects of inversions on fitness components. In this paper, we address the possible role of niche shifts by determining whether differential attraction to, oviposition on, or utilization of the rotting cladodes of two different Opuntia species (O. quimilo and O. ficus-indica) occurred among individuals carrying different second chromosome karyotypes in a natural Argentinian population. Through the analysis of more than 2500 individuals comprising five different life cycle stages associated with the necroses of these two cactus species, we found that the distributions of inversion frequencies in samples of adult flies, third instar larvae and emerging adults collected on both Opuntia species were not significantly different. Likewise, no evidence of differential oviposition was observed. These findings suggest that niche shifts cannot, solely, account for the changes observed in the Carboneras population. In addition, the selection component analysis did not reveal any significant relationship between chromosomal arrangements and the fitness components tested. These results suggest either that fitness differences might be too small to be detected or that the assumptions of the model concerning the mode of selection may not be tenable in the studied population. Fil:Fanara, J.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rodríguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v77_n5_p500_Fanara http://hdl.handle.net/20.500.12110/paper_0018067X_v77_n5_p500_Fanara
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cactus hosts
Drosophila buzzatii
habitat selection
inversion polymorphism
natural selection
Drosophila buzzatii
Cactaceae
Diptera
Drosophila buzzatii
Drosophilidae
Opuntia
Opuntia ficus-indica
Opuntia quimilo
evolutionary history
habitat selection
host plant
inversion polymorphism
natural selection
spellingShingle cactus hosts
Drosophila buzzatii
habitat selection
inversion polymorphism
natural selection
Drosophila buzzatii
Cactaceae
Diptera
Drosophila buzzatii
Drosophilidae
Opuntia
Opuntia ficus-indica
Opuntia quimilo
evolutionary history
habitat selection
host plant
inversion polymorphism
natural selection
Fanara, Juan Jose
Hasson, Esteban Ruben
Rodríguez, Constantina
The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
topic_facet cactus hosts
Drosophila buzzatii
habitat selection
inversion polymorphism
natural selection
Drosophila buzzatii
Cactaceae
Diptera
Drosophila buzzatii
Drosophilidae
Opuntia
Opuntia ficus-indica
Opuntia quimilo
evolutionary history
habitat selection
host plant
inversion polymorphism
natural selection
description Previous work has shown fitness differences among chromosomal arrangements by means of selection component analysis in two Drosophila buzzatii natural populations, one of which is native to Argentina and the other a colonized population from Carboneras, Spain. Founder effects or niche shifts were proposed to explain the differences observed in the pattern of pleiotropic effects of inversions on fitness components. In this paper, we address the possible role of niche shifts by determining whether differential attraction to, oviposition on, or utilization of the rotting cladodes of two different Opuntia species (O. quimilo and O. ficus-indica) occurred among individuals carrying different second chromosome karyotypes in a natural Argentinian population. Through the analysis of more than 2500 individuals comprising five different life cycle stages associated with the necroses of these two cactus species, we found that the distributions of inversion frequencies in samples of adult flies, third instar larvae and emerging adults collected on both Opuntia species were not significantly different. Likewise, no evidence of differential oviposition was observed. These findings suggest that niche shifts cannot, solely, account for the changes observed in the Carboneras population. In addition, the selection component analysis did not reveal any significant relationship between chromosomal arrangements and the fitness components tested. These results suggest either that fitness differences might be too small to be detected or that the assumptions of the model concerning the mode of selection may not be tenable in the studied population.
author Fanara, Juan Jose
Hasson, Esteban Ruben
Rodríguez, Constantina
author_facet Fanara, Juan Jose
Hasson, Esteban Ruben
Rodríguez, Constantina
author_sort Fanara, Juan Jose
title The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
title_short The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
title_full The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
title_fullStr The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
title_full_unstemmed The evolutionary history of Drosophila buzzatii. XXXIII. Are Opuntia hosts a selective factor for the inversion polymorphism?
title_sort evolutionary history of drosophila buzzatii. xxxiii. are opuntia hosts a selective factor for the inversion polymorphism?
publishDate 1996
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v77_n5_p500_Fanara
http://hdl.handle.net/20.500.12110/paper_0018067X_v77_n5_p500_Fanara
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