Temporal drop of genetic diversity in <i>Bombus pauloensis</i>

Autores
Maebe, Kevin; Haramboure, Marina; Lucía, Mariano; Álvarez, Leopoldo Jesús; Smagghe, Guy
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bumblebees are economically important insects which perform essential pollination tasks in natural and managed ecosystems. Recent research studying Neotropical bumblebee species in Brazil showed a clear decrease in genetic diversity over time in Bombus pauloensis. A new temporal assessment of genetic diversity is needed to know whether this was a location-specific result, or a more general phenomenon. This knowledge is essential to be able to prioritize conservation and management needs. Here, the genetic variability of B. pauloensis populations in Argentina was investigated over time using museum collection specimens from 1933 to 2016, and compared with reanalyzed data from Brazilian populations. Furthermore, specific time series were made for two Argentinean locations, Candelaria and La Plata, and compared with the time series of Porto Alegre (Brazil). All collected specimens were genotyped with 16 microsatellite loci to estimate genetic diversity parameters. Our results showed no drop in either allelic richness or expected heterozygosity over all Argentinean populations. However, a clear drop in genetic diversity was observed in two out of three location-specific time series. This loss of diversity will have negative impacts on population survival, especially over longer periods of time. Furthermore, the use and release of mass-reared specimens of B. pauloensis, which may be inbred and specifically selected for certain commercial but non-adaptive traits, could further diminish the genetic pool. Thus, our result implies the urgent need for regional conservation policies of B. pauloensis in South Brazil and North Argentina.
Facultad de Ciencias Naturales y Museo
Centro de Estudios Parasitológicos y de Vectores
Materia
Ciencias Naturales
bee decline
genetic diversity
microsatellites
Bombus pauloensis
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/123382
Acceder
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network_name_str SEDICI (UNLP)
spelling Temporal drop of genetic diversity in <i>Bombus pauloensis</i>Maebe, KevinHaramboure, MarinaLucía, MarianoÁlvarez, Leopoldo JesúsSmagghe, GuyCiencias Naturalesbee declinegenetic diversitymicrosatellitesBombus pauloensisSouth AmericaBumblebees are economically important insects which perform essential pollination tasks in natural and managed ecosystems. Recent research studying Neotropical bumblebee species in Brazil showed a clear decrease in genetic diversity over time in <i>Bombus pauloensis</i>. A new temporal assessment of genetic diversity is needed to know whether this was a location-specific result, or a more general phenomenon. This knowledge is essential to be able to prioritize conservation and management needs. Here, the genetic variability of <i>B. pauloensis</i> populations in Argentina was investigated over time using museum collection specimens from 1933 to 2016, and compared with reanalyzed data from Brazilian populations. Furthermore, specific time series were made for two Argentinean locations, Candelaria and La Plata, and compared with the time series of Porto Alegre (Brazil). All collected specimens were genotyped with 16 microsatellite loci to estimate genetic diversity parameters. Our results showed no drop in either allelic richness or expected heterozygosity over all Argentinean populations. However, a clear drop in genetic diversity was observed in two out of three location-specific time series. This loss of diversity will have negative impacts on population survival, especially over longer periods of time. Furthermore, the use and release of mass-reared specimens of <i>B. pauloensis</i>, which may be inbred and specifically selected for certain commercial but non-adaptive traits, could further diminish the genetic pool. Thus, our result implies the urgent need for regional conservation policies of <i>B. pauloensis</i> in South Brazil and North Argentina.Facultad de Ciencias Naturales y MuseoCentro de Estudios Parasitológicos y de Vectores2019-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf526-537http://sedici.unlp.edu.ar/handle/10915/123382enginfo:eu-repo/semantics/altIdentifier/issn/0044-8435info:eu-repo/semantics/altIdentifier/issn/1297-9678info:eu-repo/semantics/altIdentifier/doi/10.1007/s13592-019-00664-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:29:33Zoai:sedici.unlp.edu.ar:10915/123382Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:33.778SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
title Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
spellingShingle Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
Maebe, Kevin
Ciencias Naturales
bee decline
genetic diversity
microsatellites
Bombus pauloensis
South America
title_short Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
title_full Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
title_fullStr Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
title_full_unstemmed Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
title_sort Temporal drop of genetic diversity in <i>Bombus pauloensis</i>
dc.creator.none.fl_str_mv Maebe, Kevin
Haramboure, Marina
Lucía, Mariano
Álvarez, Leopoldo Jesús
Smagghe, Guy
author Maebe, Kevin
author_facet Maebe, Kevin
Haramboure, Marina
Lucía, Mariano
Álvarez, Leopoldo Jesús
Smagghe, Guy
author_role author
author2 Haramboure, Marina
Lucía, Mariano
Álvarez, Leopoldo Jesús
Smagghe, Guy
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
bee decline
genetic diversity
microsatellites
Bombus pauloensis
South America
topic Ciencias Naturales
bee decline
genetic diversity
microsatellites
Bombus pauloensis
South America
dc.description.none.fl_txt_mv Bumblebees are economically important insects which perform essential pollination tasks in natural and managed ecosystems. Recent research studying Neotropical bumblebee species in Brazil showed a clear decrease in genetic diversity over time in <i>Bombus pauloensis</i>. A new temporal assessment of genetic diversity is needed to know whether this was a location-specific result, or a more general phenomenon. This knowledge is essential to be able to prioritize conservation and management needs. Here, the genetic variability of <i>B. pauloensis</i> populations in Argentina was investigated over time using museum collection specimens from 1933 to 2016, and compared with reanalyzed data from Brazilian populations. Furthermore, specific time series were made for two Argentinean locations, Candelaria and La Plata, and compared with the time series of Porto Alegre (Brazil). All collected specimens were genotyped with 16 microsatellite loci to estimate genetic diversity parameters. Our results showed no drop in either allelic richness or expected heterozygosity over all Argentinean populations. However, a clear drop in genetic diversity was observed in two out of three location-specific time series. This loss of diversity will have negative impacts on population survival, especially over longer periods of time. Furthermore, the use and release of mass-reared specimens of <i>B. pauloensis</i>, which may be inbred and specifically selected for certain commercial but non-adaptive traits, could further diminish the genetic pool. Thus, our result implies the urgent need for regional conservation policies of <i>B. pauloensis</i> in South Brazil and North Argentina.
Facultad de Ciencias Naturales y Museo
Centro de Estudios Parasitológicos y de Vectores
description Bumblebees are economically important insects which perform essential pollination tasks in natural and managed ecosystems. Recent research studying Neotropical bumblebee species in Brazil showed a clear decrease in genetic diversity over time in <i>Bombus pauloensis</i>. A new temporal assessment of genetic diversity is needed to know whether this was a location-specific result, or a more general phenomenon. This knowledge is essential to be able to prioritize conservation and management needs. Here, the genetic variability of <i>B. pauloensis</i> populations in Argentina was investigated over time using museum collection specimens from 1933 to 2016, and compared with reanalyzed data from Brazilian populations. Furthermore, specific time series were made for two Argentinean locations, Candelaria and La Plata, and compared with the time series of Porto Alegre (Brazil). All collected specimens were genotyped with 16 microsatellite loci to estimate genetic diversity parameters. Our results showed no drop in either allelic richness or expected heterozygosity over all Argentinean populations. However, a clear drop in genetic diversity was observed in two out of three location-specific time series. This loss of diversity will have negative impacts on population survival, especially over longer periods of time. Furthermore, the use and release of mass-reared specimens of <i>B. pauloensis</i>, which may be inbred and specifically selected for certain commercial but non-adaptive traits, could further diminish the genetic pool. Thus, our result implies the urgent need for regional conservation policies of <i>B. pauloensis</i> in South Brazil and North Argentina.
publishDate 2019
dc.date.none.fl_str_mv 2019-07-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/123382
url http://sedici.unlp.edu.ar/handle/10915/123382
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0044-8435
info:eu-repo/semantics/altIdentifier/issn/1297-9678
info:eu-repo/semantics/altIdentifier/doi/10.1007/s13592-019-00664-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
526-537
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
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instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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