Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods
Drosophila subobscura is a Palearctic species that was first observed in South and North America in the early 1980s, and that rapidly invaded broad latitudinal ranges on both continents. To trace the source and history of this invasion, we obtained genotypic data on nine microsatellite loci from two South American, two North American and five European populations of D. subobscura. We analysed these data with traditional statistics as well as with an approximate Bayesian computation (ABC) framework. ABC methods yielded the strongest support for the scenario involving a serial introduction with founder events from Europe into South America, and then from South America into North America. Stable effective population size of the source population was very large (around one million individuals), and the propagule size was notably smaller for the introduction into South America (i.e. high bottleneck severity index with only a few effective founders) but considerably larger for the subsequent introduction into North America (i.e. low bottleneck severity index with around 100-150 effective founders). Finally, the Mediterranean region of Europe (and most likely Barcelona from the localities so far analysed) is proposed as the source of the New World flies, based on mean individual assignment statistics.
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Subjects: | L10 - Génétique et amélioration des animaux, U10 - Informatique, mathématiques et statistiques, Drosophila subobscura, introduction d'animaux, dynamique des populations, microsatellite, méthode statistique, http://aims.fao.org/aos/agrovoc/c_30546, http://aims.fao.org/aos/agrovoc/c_24116, http://aims.fao.org/aos/agrovoc/c_6111, http://aims.fao.org/aos/agrovoc/c_36574, http://aims.fao.org/aos/agrovoc/c_7377, |
Online Access: | http://agritrop.cirad.fr/561998/ http://agritrop.cirad.fr/561998/1/document_561998.pdf |
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dig-cirad-fr-5619982024-01-28T19:45:18Z http://agritrop.cirad.fr/561998/ http://agritrop.cirad.fr/561998/ Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods. Pascual Marta, Chapuis Marie-Pierre, Mestres F., Balanya J., Huey R.B., Gilchrist G.W.. 2007. Molecular Ecology, 16 (15) : 3069-3083.https://doi.org/10.1111/j.1365-294X.2007.03336.x <https://doi.org/10.1111/j.1365-294X.2007.03336.x> Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods Pascual, Marta Chapuis, Marie-Pierre Mestres, F. Balanya, J. Huey, R.B. Gilchrist, G.W. fre 2007 Molecular Ecology L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 Drosophila subobscura is a Palearctic species that was first observed in South and North America in the early 1980s, and that rapidly invaded broad latitudinal ranges on both continents. To trace the source and history of this invasion, we obtained genotypic data on nine microsatellite loci from two South American, two North American and five European populations of D. subobscura. We analysed these data with traditional statistics as well as with an approximate Bayesian computation (ABC) framework. ABC methods yielded the strongest support for the scenario involving a serial introduction with founder events from Europe into South America, and then from South America into North America. Stable effective population size of the source population was very large (around one million individuals), and the propagule size was notably smaller for the introduction into South America (i.e. high bottleneck severity index with only a few effective founders) but considerably larger for the subsequent introduction into North America (i.e. low bottleneck severity index with around 100-150 effective founders). Finally, the Mediterranean region of Europe (and most likely Barcelona from the localities so far analysed) is proposed as the source of the New World flies, based on mean individual assignment statistics. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/561998/1/document_561998.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1111/j.1365-294X.2007.03336.x 10.1111/j.1365-294X.2007.03336.x info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2007.03336.x info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1111/j.1365-294X.2007.03336.x |
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L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 |
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L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 Pascual, Marta Chapuis, Marie-Pierre Mestres, F. Balanya, J. Huey, R.B. Gilchrist, G.W. Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
description |
Drosophila subobscura is a Palearctic species that was first observed in South and North America in the early 1980s, and that rapidly invaded broad latitudinal ranges on both continents. To trace the source and history of this invasion, we obtained genotypic data on nine microsatellite loci from two South American, two North American and five European populations of D. subobscura. We analysed these data with traditional statistics as well as with an approximate Bayesian computation (ABC) framework. ABC methods yielded the strongest support for the scenario involving a serial introduction with founder events from Europe into South America, and then from South America into North America. Stable effective population size of the source population was very large (around one million individuals), and the propagule size was notably smaller for the introduction into South America (i.e. high bottleneck severity index with only a few effective founders) but considerably larger for the subsequent introduction into North America (i.e. low bottleneck severity index with around 100-150 effective founders). Finally, the Mediterranean region of Europe (and most likely Barcelona from the localities so far analysed) is proposed as the source of the New World flies, based on mean individual assignment statistics. |
format |
article |
topic_facet |
L10 - Génétique et amélioration des animaux U10 - Informatique, mathématiques et statistiques Drosophila subobscura introduction d'animaux dynamique des populations microsatellite méthode statistique http://aims.fao.org/aos/agrovoc/c_30546 http://aims.fao.org/aos/agrovoc/c_24116 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_7377 |
author |
Pascual, Marta Chapuis, Marie-Pierre Mestres, F. Balanya, J. Huey, R.B. Gilchrist, G.W. |
author_facet |
Pascual, Marta Chapuis, Marie-Pierre Mestres, F. Balanya, J. Huey, R.B. Gilchrist, G.W. |
author_sort |
Pascual, Marta |
title |
Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
title_short |
Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
title_full |
Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
title_fullStr |
Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
title_full_unstemmed |
Introduction history of Drosophila subobscura in the New World: a microsatellite-based survey using ABC methods |
title_sort |
introduction history of drosophila subobscura in the new world: a microsatellite-based survey using abc methods |
url |
http://agritrop.cirad.fr/561998/ http://agritrop.cirad.fr/561998/1/document_561998.pdf |
work_keys_str_mv |
AT pascualmarta introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods AT chapuismariepierre introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods AT mestresf introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods AT balanyaj introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods AT hueyrb introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods AT gilchristgw introductionhistoryofdrosophilasubobscurainthenewworldamicrosatellitebasedsurveyusingabcmethods |
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1792497978335821824 |