Cargando…
Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands
The migration of the fall armyworm (Spodoptera frugiperda) is of topical interest because of its recent introduction and rapid dissemination throughout the Eastern Hemisphere. This study compares fall armyworm from island and mainland locations in Ecuador to estimate migration behavior. The Galápago...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7875964/ https://www.ncbi.nlm.nih.gov/pubmed/33568766 http://dx.doi.org/10.1038/s41598-021-83111-5 |
_version_ | 1783649876104445952 |
---|---|
author | Nagoshi, Rodney N. Vizuete, Joanna Lizeth Allauca Murúa, M. Gabriela Garcés-Carrera, Sandra |
author_facet | Nagoshi, Rodney N. Vizuete, Joanna Lizeth Allauca Murúa, M. Gabriela Garcés-Carrera, Sandra |
author_sort | Nagoshi, Rodney N. |
collection | PubMed |
description | The migration of the fall armyworm (Spodoptera frugiperda) is of topical interest because of its recent introduction and rapid dissemination throughout the Eastern Hemisphere. This study compares fall armyworm from island and mainland locations in Ecuador to estimate migration behavior. The Galápagos Islands is a province of Ecuador whose mainland coast lies approximately 1000 km to the west and is the closest major land mass. Air transport modeling indicates that natural migration from the mainland to the Galápagos is unlikely, suggesting that most, if not all, the introgressions of mainland fall armyworm into the Galápagos are occurring through trade-assisted transport in contaminated cargo, which is offloaded at the Galápagos port of entry in San Cristóbal island. Haplotype studies are consistent with this limited migration and further show divergence in the fall armyworm from San Cristóbal with those from the neighboring island of Santa Cruz despite their close proximity (less than 100 km distance) and favorable winds for inter-island flights. These observations indicate that water poses a significant barrier for moth migration in this region, with human-assisted transport probably playing a more important role than natural migration. |
format | Online Article Text |
id | pubmed-7875964 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78759642021-02-11 Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands Nagoshi, Rodney N. Vizuete, Joanna Lizeth Allauca Murúa, M. Gabriela Garcés-Carrera, Sandra Sci Rep Article The migration of the fall armyworm (Spodoptera frugiperda) is of topical interest because of its recent introduction and rapid dissemination throughout the Eastern Hemisphere. This study compares fall armyworm from island and mainland locations in Ecuador to estimate migration behavior. The Galápagos Islands is a province of Ecuador whose mainland coast lies approximately 1000 km to the west and is the closest major land mass. Air transport modeling indicates that natural migration from the mainland to the Galápagos is unlikely, suggesting that most, if not all, the introgressions of mainland fall armyworm into the Galápagos are occurring through trade-assisted transport in contaminated cargo, which is offloaded at the Galápagos port of entry in San Cristóbal island. Haplotype studies are consistent with this limited migration and further show divergence in the fall armyworm from San Cristóbal with those from the neighboring island of Santa Cruz despite their close proximity (less than 100 km distance) and favorable winds for inter-island flights. These observations indicate that water poses a significant barrier for moth migration in this region, with human-assisted transport probably playing a more important role than natural migration. Nature Publishing Group UK 2021-02-10 /pmc/articles/PMC7875964/ /pubmed/33568766 http://dx.doi.org/10.1038/s41598-021-83111-5 Text en © This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Nagoshi, Rodney N. Vizuete, Joanna Lizeth Allauca Murúa, M. Gabriela Garcés-Carrera, Sandra Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title | Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title_full | Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title_fullStr | Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title_full_unstemmed | Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title_short | Comparisons of fall armyworm haplotypes between the Galápagos Islands and mainland Ecuador indicate limited migration to and between islands |
title_sort | comparisons of fall armyworm haplotypes between the galápagos islands and mainland ecuador indicate limited migration to and between islands |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7875964/ https://www.ncbi.nlm.nih.gov/pubmed/33568766 http://dx.doi.org/10.1038/s41598-021-83111-5 |
work_keys_str_mv | AT nagoshirodneyn comparisonsoffallarmywormhaplotypesbetweenthegalapagosislandsandmainlandecuadorindicatelimitedmigrationtoandbetweenislands AT vizuetejoannalizethallauca comparisonsoffallarmywormhaplotypesbetweenthegalapagosislandsandmainlandecuadorindicatelimitedmigrationtoandbetweenislands AT muruamgabriela comparisonsoffallarmywormhaplotypesbetweenthegalapagosislandsandmainlandecuadorindicatelimitedmigrationtoandbetweenislands AT garcescarrerasandra comparisonsoffallarmywormhaplotypesbetweenthegalapagosislandsandmainlandecuadorindicatelimitedmigrationtoandbetweenislands |