Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids

Background. The rapid evolution of genital morphology is a fascinating feature that accompanies many speciation events. However, the underlying patterns and explanatory processes remain to be settled. In this work we investigate the patterns of intraspecific variation and interspecific divergence in...

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Autores principales:	Soto, Ignacio M., Carreira, Valeria Paula, Fanara, Juan Jose, Hasson, Esteban Ruben
Publicado:	2007
Materias:	article controlled study Drosophila drosophila buzzatii Drosophila koepferae environmental factor female genetic variability heredity hybrid male male genital system morphology nonhuman sexual development species analysis of variance animal cross breeding evolution gene expression regulation genetics growth, development and aging organ size species difference Cactaceae Drosophila buzzatii Analysis of Variance Animals Crosses, Genetic Evolution Gene Expression Regulation, Developmental Genitalia, Male Male Organ Size Species Specificity
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14712148_v7_n_p_Soto http://hdl.handle.net/20.500.12110/paper_14712148_v7_n_p_Soto
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14712148_v7_n_p_Soto
record_format	dspace
spelling	paper:paper_14712148_v7_n_p_Soto2023-06-08T16:17:12Z Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids Soto, Ignacio M. Carreira, Valeria Paula Fanara, Juan Jose Hasson, Esteban Ruben article controlled study Drosophila drosophila buzzatii Drosophila koepferae environmental factor female genetic variability heredity hybrid male male genital system morphology nonhuman sexual development species analysis of variance animal cross breeding evolution gene expression regulation genetics growth, development and aging organ size species difference Cactaceae Drosophila buzzatii Drosophila koepferae Analysis of Variance Animals Crosses, Genetic Drosophila Evolution Gene Expression Regulation, Developmental Genitalia, Male Male Organ Size Species Specificity Background. The rapid evolution of genital morphology is a fascinating feature that accompanies many speciation events. However, the underlying patterns and explanatory processes remain to be settled. In this work we investigate the patterns of intraspecific variation and interspecific divergence in male genitalic morphology (size and shape) in the cactophilic sibling species Drosophila buzzatii and D. koepferae. Genital morphology in interspecific hybrids was examined and compared to the corresponding parental lines. Results. Despite of being siblings, D. buzzatii and D. koepferae showed contrasting patterns of genital morphological variation. Though genitalic size and shape variation have a significant genetic component in both species, shape varied across host cacti only in D. buzzatii. Such plastic expression of genital shape is the first evidence of the effect of rearing substrate on genitalic morphology in Drosophila. Hybrid genital morphology was not intermediate between parental species and the morphological resemblance to parental strains was cross-dependent. Conclusion. Our results suggest the evolution of different developmental networks after interspecific divergence and the existence of a complex genetic architecture, involving genetic factors with major effects affecting genital morphology. © 2007 Soto et al; licensee BioMed Central Ltd. Fil:Soto, I.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Carreira, V.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14712148_v7_n_p_Soto http://hdl.handle.net/20.500.12110/paper_14712148_v7_n_p_Soto
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	article controlled study Drosophila drosophila buzzatii Drosophila koepferae environmental factor female genetic variability heredity hybrid male male genital system morphology nonhuman sexual development species analysis of variance animal cross breeding evolution gene expression regulation genetics growth, development and aging organ size species difference Cactaceae Drosophila buzzatii Drosophila koepferae Analysis of Variance Animals Crosses, Genetic Drosophila Evolution Gene Expression Regulation, Developmental Genitalia, Male Male Organ Size Species Specificity
spellingShingle	article controlled study Drosophila drosophila buzzatii Drosophila koepferae environmental factor female genetic variability heredity hybrid male male genital system morphology nonhuman sexual development species analysis of variance animal cross breeding evolution gene expression regulation genetics growth, development and aging organ size species difference Cactaceae Drosophila buzzatii Drosophila koepferae Analysis of Variance Animals Crosses, Genetic Drosophila Evolution Gene Expression Regulation, Developmental Genitalia, Male Male Organ Size Species Specificity Soto, Ignacio M. Carreira, Valeria Paula Fanara, Juan Jose Hasson, Esteban Ruben Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
topic_facet	article controlled study Drosophila drosophila buzzatii Drosophila koepferae environmental factor female genetic variability heredity hybrid male male genital system morphology nonhuman sexual development species analysis of variance animal cross breeding evolution gene expression regulation genetics growth, development and aging organ size species difference Cactaceae Drosophila buzzatii Drosophila koepferae Analysis of Variance Animals Crosses, Genetic Drosophila Evolution Gene Expression Regulation, Developmental Genitalia, Male Male Organ Size Species Specificity
description	Background. The rapid evolution of genital morphology is a fascinating feature that accompanies many speciation events. However, the underlying patterns and explanatory processes remain to be settled. In this work we investigate the patterns of intraspecific variation and interspecific divergence in male genitalic morphology (size and shape) in the cactophilic sibling species Drosophila buzzatii and D. koepferae. Genital morphology in interspecific hybrids was examined and compared to the corresponding parental lines. Results. Despite of being siblings, D. buzzatii and D. koepferae showed contrasting patterns of genital morphological variation. Though genitalic size and shape variation have a significant genetic component in both species, shape varied across host cacti only in D. buzzatii. Such plastic expression of genital shape is the first evidence of the effect of rearing substrate on genitalic morphology in Drosophila. Hybrid genital morphology was not intermediate between parental species and the morphological resemblance to parental strains was cross-dependent. Conclusion. Our results suggest the evolution of different developmental networks after interspecific divergence and the existence of a complex genetic architecture, involving genetic factors with major effects affecting genital morphology. © 2007 Soto et al; licensee BioMed Central Ltd.
author	Soto, Ignacio M. Carreira, Valeria Paula Fanara, Juan Jose Hasson, Esteban Ruben
author_facet	Soto, Ignacio M. Carreira, Valeria Paula Fanara, Juan Jose Hasson, Esteban Ruben
author_sort	Soto, Ignacio M.
title	Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
title_short	Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
title_full	Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
title_fullStr	Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
title_full_unstemmed	Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids
title_sort	evolution of male genitalia: environmental and genetic factors affect genital morphology in two drosophila sibling species and their hybrids
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14712148_v7_n_p_Soto http://hdl.handle.net/20.500.12110/paper_14712148_v7_n_p_Soto
work_keys_str_mv	AT sotoignaciom evolutionofmalegenitaliaenvironmentalandgeneticfactorsaffectgenitalmorphologyintwodrosophilasiblingspeciesandtheirhybrids AT carreiravaleriapaula evolutionofmalegenitaliaenvironmentalandgeneticfactorsaffectgenitalmorphologyintwodrosophilasiblingspeciesandtheirhybrids AT fanarajuanjose evolutionofmalegenitaliaenvironmentalandgeneticfactorsaffectgenitalmorphologyintwodrosophilasiblingspeciesandtheirhybrids AT hassonestebanruben evolutionofmalegenitaliaenvironmentalandgeneticfactorsaffectgenitalmorphologyintwodrosophilasiblingspeciesandtheirhybrids
_version_	1768543003515813888

Evolution of male genitalia: Environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids

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