The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean
Aedes albopictus and Aedes aegypti are the two main worldwide arbovirus vectors that have experienced invasion phases. Aedes aegypti is a pantropical species that spread centuries ago whereas Ae. albopictus started the main wave of invasion in the 1980s. Both species have been at various times on the different islands in Southwestern Indian Ocean (SWIO). This area provides an opportunity to examine the extent to which mosquitoes colonization patterns are influenced by different introductory events likely linked with human settlement and migration between the islands. To explore this hypothesis, we propose a CO1-based phylogeny using a large sampling of fresh Ae. albopictus, Ae. aegypti, and Ae. mascarensis, and 50-year-old dry specimens originating from different Indian Ocean islands. Our data allow us to hypothesize the existence of at least two waves of invasion for Ae. albopictus in the islands of SWIO. The first one most likely occurred several centuries ago with establishments in Madagascar, Mauritius and Reunion Island. The other one that appears to currently still on-going, reached almost all the islands of SWIO during the 1990s or later. The low genetic diversity found between the ancient invasive strain and the contemporary one, indicates with great certainty that Ae. albopictus is not indigenous to the islands of SWIO. Recently, in Madagascar, an invasive lineage of Ae. albopictus has expanded all over the island while Ae. aegypti populations have declined in urban areas. Three clusters of Aedes aegypti have been observed, two fitting with the wild form Ae. aegypti formosus and the other one fitting with the more domestic form Ae. ae. aegypti. Sequence of Ae. mascarensis, endemic to Mauritius suggest that this species might belong to Ae. aegypti species and on this basis we propose to classify it as a sub species or form of Ae. aegypti species. Given the increase of human population flux on these islands, the occurrence of these vectors and their ability to spread quickly are of high importance of arbovirus transmission and the epidemicity of the associated diseases in these islands.
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Subjects: | L72 - Organismes nuisibles des animaux, S50 - Santé humaine, Aedes, Aedes aegypti, Aedes albopictus, Alphavirus, espèce envahissante, dynamique des populations, virus de chikungunya, http://aims.fao.org/aos/agrovoc/c_146, http://aims.fao.org/aos/agrovoc/c_30482, http://aims.fao.org/aos/agrovoc/c_30483, http://aims.fao.org/aos/agrovoc/c_305, http://aims.fao.org/aos/agrovoc/c_49865, http://aims.fao.org/aos/agrovoc/c_6111, http://aims.fao.org/aos/agrovoc/c_35376, http://aims.fao.org/aos/agrovoc/c_3828, http://aims.fao.org/aos/agrovoc/c_6543, http://aims.fao.org/aos/agrovoc/c_4510, http://aims.fao.org/aos/agrovoc/c_4662, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/562248/ http://agritrop.cirad.fr/562248/1/document_562248.pdf |
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L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 |
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L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 Delatte, Hélène Bagny, Leila Brengues, Cécile Bouétard, Anthony Paupy, Christophe Fontenille, Didier The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
description |
Aedes albopictus and Aedes aegypti are the two main worldwide arbovirus vectors that have experienced invasion phases. Aedes aegypti is a pantropical species that spread centuries ago whereas Ae. albopictus started the main wave of invasion in the 1980s. Both species have been at various times on the different islands in Southwestern Indian Ocean (SWIO). This area provides an opportunity to examine the extent to which mosquitoes colonization patterns are influenced by different introductory events likely linked with human settlement and migration between the islands. To explore this hypothesis, we propose a CO1-based phylogeny using a large sampling of fresh Ae. albopictus, Ae. aegypti, and Ae. mascarensis, and 50-year-old dry specimens originating from different Indian Ocean islands. Our data allow us to hypothesize the existence of at least two waves of invasion for Ae. albopictus in the islands of SWIO. The first one most likely occurred several centuries ago with establishments in Madagascar, Mauritius and Reunion Island. The other one that appears to currently still on-going, reached almost all the islands of SWIO during the 1990s or later. The low genetic diversity found between the ancient invasive strain and the contemporary one, indicates with great certainty that Ae. albopictus is not indigenous to the islands of SWIO. Recently, in Madagascar, an invasive lineage of Ae. albopictus has expanded all over the island while Ae. aegypti populations have declined in urban areas. Three clusters of Aedes aegypti have been observed, two fitting with the wild form Ae. aegypti formosus and the other one fitting with the more domestic form Ae. ae. aegypti. Sequence of Ae. mascarensis, endemic to Mauritius suggest that this species might belong to Ae. aegypti species and on this basis we propose to classify it as a sub species or form of Ae. aegypti species. Given the increase of human population flux on these islands, the occurrence of these vectors and their ability to spread quickly are of high importance of arbovirus transmission and the epidemicity of the associated diseases in these islands. |
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article |
topic_facet |
L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Delatte, Hélène Bagny, Leila Brengues, Cécile Bouétard, Anthony Paupy, Christophe Fontenille, Didier |
author_facet |
Delatte, Hélène Bagny, Leila Brengues, Cécile Bouétard, Anthony Paupy, Christophe Fontenille, Didier |
author_sort |
Delatte, Hélène |
title |
The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
title_short |
The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
title_full |
The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
title_fullStr |
The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
title_full_unstemmed |
The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean |
title_sort |
invaders: phylogeography of dengue and chikungunya viruses aedes vectors, on the south west islands of the indian ocean |
url |
http://agritrop.cirad.fr/562248/ http://agritrop.cirad.fr/562248/1/document_562248.pdf |
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dig-cirad-fr-5622482024-01-28T19:49:02Z http://agritrop.cirad.fr/562248/ http://agritrop.cirad.fr/562248/ The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean. Delatte Hélène, Bagny Leila, Brengues Cécile, Bouétard Anthony, Paupy Christophe, Fontenille Didier. 2011. Infection, Genetics and Evolution, 11 (7) : 1769-1781.https://doi.org/10.1016/j.meegid.2011.07.016 <https://doi.org/10.1016/j.meegid.2011.07.016> The invaders: Phylogeography of dengue and chikungunya viruses Aedes vectors, on the South West islands of the Indian Ocean Delatte, Hélène Bagny, Leila Brengues, Cécile Bouétard, Anthony Paupy, Christophe Fontenille, Didier eng 2011 Infection, Genetics and Evolution L72 - Organismes nuisibles des animaux S50 - Santé humaine Aedes Aedes aegypti Aedes albopictus Alphavirus espèce envahissante dynamique des populations virus de chikungunya http://aims.fao.org/aos/agrovoc/c_146 http://aims.fao.org/aos/agrovoc/c_30482 http://aims.fao.org/aos/agrovoc/c_30483 http://aims.fao.org/aos/agrovoc/c_305 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_35376 océan Indien La Réunion Madagascar Maurice France http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_3081 Aedes albopictus and Aedes aegypti are the two main worldwide arbovirus vectors that have experienced invasion phases. Aedes aegypti is a pantropical species that spread centuries ago whereas Ae. albopictus started the main wave of invasion in the 1980s. Both species have been at various times on the different islands in Southwestern Indian Ocean (SWIO). This area provides an opportunity to examine the extent to which mosquitoes colonization patterns are influenced by different introductory events likely linked with human settlement and migration between the islands. To explore this hypothesis, we propose a CO1-based phylogeny using a large sampling of fresh Ae. albopictus, Ae. aegypti, and Ae. mascarensis, and 50-year-old dry specimens originating from different Indian Ocean islands. Our data allow us to hypothesize the existence of at least two waves of invasion for Ae. albopictus in the islands of SWIO. The first one most likely occurred several centuries ago with establishments in Madagascar, Mauritius and Reunion Island. The other one that appears to currently still on-going, reached almost all the islands of SWIO during the 1990s or later. The low genetic diversity found between the ancient invasive strain and the contemporary one, indicates with great certainty that Ae. albopictus is not indigenous to the islands of SWIO. Recently, in Madagascar, an invasive lineage of Ae. albopictus has expanded all over the island while Ae. aegypti populations have declined in urban areas. Three clusters of Aedes aegypti have been observed, two fitting with the wild form Ae. aegypti formosus and the other one fitting with the more domestic form Ae. ae. aegypti. Sequence of Ae. mascarensis, endemic to Mauritius suggest that this species might belong to Ae. aegypti species and on this basis we propose to classify it as a sub species or form of Ae. aegypti species. Given the increase of human population flux on these islands, the occurrence of these vectors and their ability to spread quickly are of high importance of arbovirus transmission and the epidemicity of the associated diseases in these islands. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/562248/1/document_562248.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.meegid.2011.07.016 10.1016/j.meegid.2011.07.016 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=212920 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.meegid.2011.07.016 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.meegid.2011.07.016 |