Where you live shapes who you are: morphological changes in urban Triatoma infestans
- Autores
- Piccinali, Romina Valeria; Nattero, Julieta; Cano, Florencia; Sánchez Casaccia, María de la Paz; Carbajal de la Fuente, Ana Laura
- Año de publicación
- 2025
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Introduction: Urbanization has transformed landscapes, driving ecological and morphological changes in insects. Chagas, traditionally a multidimensional rural problem, is increasingly reported in urban areas. Triatoma infestans, the primary vector of Chagas disease in the Southern Cone, has been reported in urban centers of San Juan, Argentina, for decades. Using morphometric and colorimetric analyses, we assess how urbanization influences the morphology and coloration of T. infestans.Materials and Methods: A total of 105 adults from five urban and one rural population of San Juan were analyzed.Wings, pronota, heads, and legs were measured and compared between populations and sexes. Principal Component and Canonical Variate Analyses were performed to assess shape variations. Kruskal-Wallis and Wilcoxon tests, and linear models examined size differences. Colorimetric analyses searched for wing and connexivum color differences between individuals.Results: Multivariate analyses revealed significant morphological differentiation of wing, pronotum, and head shapes, primarily distinguishing the rural Valle Fértil from urban populations. Centroid size analyses indicated that rural individuals exhibited larger body structures, a pattern generally consistent across sexes. Furthermore, leg morphology also varied, with Valle Fértil insects possessing greater femur length and width compared to their urban counterparts. Nosignificant color differences were found across populations or sexes.Discussion: Urban T. infestans exhibit size reductions, aligning with Schofield’s simplification hypothesis and possibly influenced by the Urban Heat Island effect. Shape changes, more pronounced in wings and pronota, suggest other influences beyond the rural-urban gradient, potentially including developmental plasticity, flight demands, and genetic drift. These findingsunderscore the need for urban-specific Chagas disease control strategies and further research on the evolutionary dynamics of T. infestans in urban environments.
Fil: Piccinali, Romina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Nattero, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Cano, Florencia. No especifíca;
Fil: Sánchez Casaccia, María de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; Argentina
Fil: Carbajal de la Fuente, Ana Laura. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
TRIATOMINES
URBANIZATION
GEOMETRIC MORPHOMETRIC
ARGENTINA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/265575
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oai:ri.conicet.gov.ar:11336/265575 |
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Where you live shapes who you are: morphological changes in urban Triatoma infestansPiccinali, Romina ValeriaNattero, JulietaCano, FlorenciaSánchez Casaccia, María de la PazCarbajal de la Fuente, Ana LauraTRIATOMINESURBANIZATIONGEOMETRIC MORPHOMETRICARGENTINAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Introduction: Urbanization has transformed landscapes, driving ecological and morphological changes in insects. Chagas, traditionally a multidimensional rural problem, is increasingly reported in urban areas. Triatoma infestans, the primary vector of Chagas disease in the Southern Cone, has been reported in urban centers of San Juan, Argentina, for decades. Using morphometric and colorimetric analyses, we assess how urbanization influences the morphology and coloration of T. infestans.Materials and Methods: A total of 105 adults from five urban and one rural population of San Juan were analyzed.Wings, pronota, heads, and legs were measured and compared between populations and sexes. Principal Component and Canonical Variate Analyses were performed to assess shape variations. Kruskal-Wallis and Wilcoxon tests, and linear models examined size differences. Colorimetric analyses searched for wing and connexivum color differences between individuals.Results: Multivariate analyses revealed significant morphological differentiation of wing, pronotum, and head shapes, primarily distinguishing the rural Valle Fértil from urban populations. Centroid size analyses indicated that rural individuals exhibited larger body structures, a pattern generally consistent across sexes. Furthermore, leg morphology also varied, with Valle Fértil insects possessing greater femur length and width compared to their urban counterparts. Nosignificant color differences were found across populations or sexes.Discussion: Urban T. infestans exhibit size reductions, aligning with Schofield’s simplification hypothesis and possibly influenced by the Urban Heat Island effect. Shape changes, more pronounced in wings and pronota, suggest other influences beyond the rural-urban gradient, potentially including developmental plasticity, flight demands, and genetic drift. These findingsunderscore the need for urban-specific Chagas disease control strategies and further research on the evolutionary dynamics of T. infestans in urban environments.Fil: Piccinali, Romina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Nattero, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Cano, Florencia. No especifíca;Fil: Sánchez Casaccia, María de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; ArgentinaFil: Carbajal de la Fuente, Ana Laura. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFrontiers Media2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/265575Piccinali, Romina Valeria; Nattero, Julieta; Cano, Florencia; Sánchez Casaccia, María de la Paz; Carbajal de la Fuente, Ana Laura; Where you live shapes who you are: morphological changes in urban Triatoma infestans; Frontiers Media; Frontiers in Insect Science; 5; 6-2025; 1-132673-8600CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/finsc.2025.1593921/fullinfo:eu-repo/semantics/altIdentifier/doi/10.3389/finsc.2025.1593921info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:04:06Zoai:ri.conicet.gov.ar:11336/265575instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:04:07.038CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
title |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
spellingShingle |
Where you live shapes who you are: morphological changes in urban Triatoma infestans Piccinali, Romina Valeria TRIATOMINES URBANIZATION GEOMETRIC MORPHOMETRIC ARGENTINA |
title_short |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
title_full |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
title_fullStr |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
title_full_unstemmed |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
title_sort |
Where you live shapes who you are: morphological changes in urban Triatoma infestans |
dc.creator.none.fl_str_mv |
Piccinali, Romina Valeria Nattero, Julieta Cano, Florencia Sánchez Casaccia, María de la Paz Carbajal de la Fuente, Ana Laura |
author |
Piccinali, Romina Valeria |
author_facet |
Piccinali, Romina Valeria Nattero, Julieta Cano, Florencia Sánchez Casaccia, María de la Paz Carbajal de la Fuente, Ana Laura |
author_role |
author |
author2 |
Nattero, Julieta Cano, Florencia Sánchez Casaccia, María de la Paz Carbajal de la Fuente, Ana Laura |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
TRIATOMINES URBANIZATION GEOMETRIC MORPHOMETRIC ARGENTINA |
topic |
TRIATOMINES URBANIZATION GEOMETRIC MORPHOMETRIC ARGENTINA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Introduction: Urbanization has transformed landscapes, driving ecological and morphological changes in insects. Chagas, traditionally a multidimensional rural problem, is increasingly reported in urban areas. Triatoma infestans, the primary vector of Chagas disease in the Southern Cone, has been reported in urban centers of San Juan, Argentina, for decades. Using morphometric and colorimetric analyses, we assess how urbanization influences the morphology and coloration of T. infestans.Materials and Methods: A total of 105 adults from five urban and one rural population of San Juan were analyzed.Wings, pronota, heads, and legs were measured and compared between populations and sexes. Principal Component and Canonical Variate Analyses were performed to assess shape variations. Kruskal-Wallis and Wilcoxon tests, and linear models examined size differences. Colorimetric analyses searched for wing and connexivum color differences between individuals.Results: Multivariate analyses revealed significant morphological differentiation of wing, pronotum, and head shapes, primarily distinguishing the rural Valle Fértil from urban populations. Centroid size analyses indicated that rural individuals exhibited larger body structures, a pattern generally consistent across sexes. Furthermore, leg morphology also varied, with Valle Fértil insects possessing greater femur length and width compared to their urban counterparts. Nosignificant color differences were found across populations or sexes.Discussion: Urban T. infestans exhibit size reductions, aligning with Schofield’s simplification hypothesis and possibly influenced by the Urban Heat Island effect. Shape changes, more pronounced in wings and pronota, suggest other influences beyond the rural-urban gradient, potentially including developmental plasticity, flight demands, and genetic drift. These findingsunderscore the need for urban-specific Chagas disease control strategies and further research on the evolutionary dynamics of T. infestans in urban environments. Fil: Piccinali, Romina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Nattero, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Cano, Florencia. No especifíca; Fil: Sánchez Casaccia, María de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; Argentina Fil: Carbajal de la Fuente, Ana Laura. Dirección Nacional de Institutos de Investigación. Administración Nacional de Laboratorios e Institutos de Salud. Centro Nacional de Diagnóstico e Investigaciones Endemo-epidémicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Introduction: Urbanization has transformed landscapes, driving ecological and morphological changes in insects. Chagas, traditionally a multidimensional rural problem, is increasingly reported in urban areas. Triatoma infestans, the primary vector of Chagas disease in the Southern Cone, has been reported in urban centers of San Juan, Argentina, for decades. Using morphometric and colorimetric analyses, we assess how urbanization influences the morphology and coloration of T. infestans.Materials and Methods: A total of 105 adults from five urban and one rural population of San Juan were analyzed.Wings, pronota, heads, and legs were measured and compared between populations and sexes. Principal Component and Canonical Variate Analyses were performed to assess shape variations. Kruskal-Wallis and Wilcoxon tests, and linear models examined size differences. Colorimetric analyses searched for wing and connexivum color differences between individuals.Results: Multivariate analyses revealed significant morphological differentiation of wing, pronotum, and head shapes, primarily distinguishing the rural Valle Fértil from urban populations. Centroid size analyses indicated that rural individuals exhibited larger body structures, a pattern generally consistent across sexes. Furthermore, leg morphology also varied, with Valle Fértil insects possessing greater femur length and width compared to their urban counterparts. Nosignificant color differences were found across populations or sexes.Discussion: Urban T. infestans exhibit size reductions, aligning with Schofield’s simplification hypothesis and possibly influenced by the Urban Heat Island effect. Shape changes, more pronounced in wings and pronota, suggest other influences beyond the rural-urban gradient, potentially including developmental plasticity, flight demands, and genetic drift. These findingsunderscore the need for urban-specific Chagas disease control strategies and further research on the evolutionary dynamics of T. infestans in urban environments. |
publishDate |
2025 |
dc.date.none.fl_str_mv |
2025-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/265575 Piccinali, Romina Valeria; Nattero, Julieta; Cano, Florencia; Sánchez Casaccia, María de la Paz; Carbajal de la Fuente, Ana Laura; Where you live shapes who you are: morphological changes in urban Triatoma infestans; Frontiers Media; Frontiers in Insect Science; 5; 6-2025; 1-13 2673-8600 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/265575 |
identifier_str_mv |
Piccinali, Romina Valeria; Nattero, Julieta; Cano, Florencia; Sánchez Casaccia, María de la Paz; Carbajal de la Fuente, Ana Laura; Where you live shapes who you are: morphological changes in urban Triatoma infestans; Frontiers Media; Frontiers in Insect Science; 5; 6-2025; 1-13 2673-8600 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/finsc.2025.1593921/full info:eu-repo/semantics/altIdentifier/doi/10.3389/finsc.2025.1593921 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Frontiers Media |
publisher.none.fl_str_mv |
Frontiers Media |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613864811921408 |
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13.070432 |