Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment
Human-mediated bioinvasions provide the opportunity to study the early stages of contact between formerly allopatric, divergent populations of a species. However, when invasive and resident populations are morphologically similar, it may be very difficult to assess their distribution in the field, as well as the extent of ecological overlap and genetic exchanges between invasive and resident populations. We here illustrate the use of data obtained from a set of eight microsatellite markers together with Bayesian clustering methods to document invasions in a group of major tropical pests, Bemisia tabaci, which comprises several morphologically indistinguishable biotypes with different agronomic impacts. We focus on the island of La Réunion, where an invasive biotype (B) has recently been introduced and now interacts with the resident biotype (Ms). The temporal and spatial distribution, host-plant range and genetic structure of both biotypes are investigated. We showed (i) that, without prior information, clustering methods separate two groups of individuals that can safely be identified as the B and Ms biotypes; (ii) that the B biotype has invaded all regions of the island, and showed no signs of genetic founder effect relative to the Ms biotype; (iii) that the B and Ms biotypes coexist in sympatry throughout most of their geographical ranges, although they tend to segregate into different host plants; and finally (iv) that asymmetrical and locus-specific introgression occurs between the two biotypes when they are in syntopy.
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dig-cirad-fr-5331572024-01-28T14:39:28Z http://agritrop.cirad.fr/533157/ http://agritrop.cirad.fr/533157/ Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment. Delatte Hélène, David Patrice, Granier Martine, Lett Jean-Michel, Goldbach Rob, Peterschmitt Michel, Reynaud Bernard. 2006. Genetical Research, 87 (2) : 109-124.https://doi.org/10.1017/S0016672306008135 <https://doi.org/10.1017/S0016672306008135> Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment Delatte, Hélène David, Patrice Granier, Martine Lett, Jean-Michel Goldbach, Rob Peterschmitt, Michel Reynaud, Bernard eng 2006 Genetical Research H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 La Réunion France http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 Human-mediated bioinvasions provide the opportunity to study the early stages of contact between formerly allopatric, divergent populations of a species. However, when invasive and resident populations are morphologically similar, it may be very difficult to assess their distribution in the field, as well as the extent of ecological overlap and genetic exchanges between invasive and resident populations. We here illustrate the use of data obtained from a set of eight microsatellite markers together with Bayesian clustering methods to document invasions in a group of major tropical pests, Bemisia tabaci, which comprises several morphologically indistinguishable biotypes with different agronomic impacts. We focus on the island of La Réunion, where an invasive biotype (B) has recently been introduced and now interacts with the resident biotype (Ms). The temporal and spatial distribution, host-plant range and genetic structure of both biotypes are investigated. We showed (i) that, without prior information, clustering methods separate two groups of individuals that can safely be identified as the B and Ms biotypes; (ii) that the B biotype has invaded all regions of the island, and showed no signs of genetic founder effect relative to the Ms biotype; (iii) that the B and Ms biotypes coexist in sympatry throughout most of their geographical ranges, although they tend to segregate into different host plants; and finally (iv) that asymmetrical and locus-specific introgression occurs between the two biotypes when they are in syntopy. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/533157/1/document_533157.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1017/S0016672306008135 10.1017/S0016672306008135 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0016672306008135 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1017/S0016672306008135 |
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H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 |
spellingShingle |
H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 Delatte, Hélène David, Patrice Granier, Martine Lett, Jean-Michel Goldbach, Rob Peterschmitt, Michel Reynaud, Bernard Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
description |
Human-mediated bioinvasions provide the opportunity to study the early stages of contact between formerly allopatric, divergent populations of a species. However, when invasive and resident populations are morphologically similar, it may be very difficult to assess their distribution in the field, as well as the extent of ecological overlap and genetic exchanges between invasive and resident populations. We here illustrate the use of data obtained from a set of eight microsatellite markers together with Bayesian clustering methods to document invasions in a group of major tropical pests, Bemisia tabaci, which comprises several morphologically indistinguishable biotypes with different agronomic impacts. We focus on the island of La Réunion, where an invasive biotype (B) has recently been introduced and now interacts with the resident biotype (Ms). The temporal and spatial distribution, host-plant range and genetic structure of both biotypes are investigated. We showed (i) that, without prior information, clustering methods separate two groups of individuals that can safely be identified as the B and Ms biotypes; (ii) that the B biotype has invaded all regions of the island, and showed no signs of genetic founder effect relative to the Ms biotype; (iii) that the B and Ms biotypes coexist in sympatry throughout most of their geographical ranges, although they tend to segregate into different host plants; and finally (iv) that asymmetrical and locus-specific introgression occurs between the two biotypes when they are in syntopy. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes Bemisia tabaci biotype dynamique des populations distribution des populations génétique des populations organisme indigène plante nuisible plante hôte identification microsatellite espèce envahissante http://aims.fao.org/aos/agrovoc/c_30755 http://aims.fao.org/aos/agrovoc/c_16166 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_34268 http://aims.fao.org/aos/agrovoc/c_5247 http://aims.fao.org/aos/agrovoc/c_11621 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Delatte, Hélène David, Patrice Granier, Martine Lett, Jean-Michel Goldbach, Rob Peterschmitt, Michel Reynaud, Bernard |
author_facet |
Delatte, Hélène David, Patrice Granier, Martine Lett, Jean-Michel Goldbach, Rob Peterschmitt, Michel Reynaud, Bernard |
author_sort |
Delatte, Hélène |
title |
Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
title_short |
Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
title_full |
Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
title_fullStr |
Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
title_full_unstemmed |
Microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
title_sort |
microsatellites reveal extensive geographical, ecological and genetic contacts between invasive and indigenous whitefly biotypes in an insular environment |
url |
http://agritrop.cirad.fr/533157/ http://agritrop.cirad.fr/533157/1/document_533157.pdf |
work_keys_str_mv |
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