Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina

Autores
Lizarraga, Maria Alfonsina; Rodriguez, Claudia Susana; Lopez, Ana Graciela; Soria, Carola; Ortiz, Valeria Azucena Paola; Crocco, Liliana Beatriz
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Triatoma infestans is one of the main vectors for Trypanosoma cruzi transmission, a serious health problem in the Gran Chaco region. Triatomine persistence is partly due to peridomestic populations, which are the main source of house reinfestation and thus prevent vector control. The aim of this study was to determine phenotypic variations in peridomestic T. infestans populations from different geographical areas of the Chaco region in northwestern Argentina. Adult male and female T. infestans m orphotypes were collected in chicken coops from four departments of the provinces of Chaco (Güemes, GU), San Luis (Junín, JU), Córdoba (Cruz del Eje, CE) and Santiago del Estero (Choya, CH). The shape and size of right wings (n = 266) and heads (n = 269) were analyzed using landmark-based geometric morphometrics. Sexual dimorphism was significantly larger in females (GU, JU and CE wings shape and GU, CE and CH head size). The centroid (Cs) size of wings differed significantly in most T. infestans populations (H = 187.28, df = 3; p = 0.001), whereas differences in the Cs size of heads were found between CE and GU and JU and CH, with the highest mean Cs in CE and the smallest ones in CH (H = 123.12, df = 3, p = 0.00 between males; H = 79.92, df = 3, p = 0.001 between females). Discriminant analysis showed that wing conformation differed significantly between females and males from the study populations, excepting CH vs JU females and males (d2 = 1.47; p = 0.092 and d2 = 1.23; p = 0.169) and between CH vs. GU females and GU vs. JU in males. No differences were found in males from GU and JU. Mahalanobis distance (d2) showed significant differences in heads among all departments, without discriminating by sex. These results suggest sexual dimorphism in T. infestans head size and wing conformation as well as different population structures (high, low or no exchange of individuals) in peridomestic areas of the four Chaco region departments studied, probably due to geographic isolation.
Fil: Lizarraga, Maria Alfonsina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina
Fil: Rodriguez, Claudia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Lopez, Ana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Soria, Carola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Ortiz, Valeria Azucena Paola. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Fisiología. Cátedra de Introducción A la Biología; Argentina
Fil: Crocco, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Materia
Wing morphology
Heads
Peridomestic populations
Triatoma infestans
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/215532
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/215532
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern ArgentinaLizarraga, Maria AlfonsinaRodriguez, Claudia SusanaLopez, Ana GracielaSoria, CarolaOrtiz, Valeria Azucena PaolaCrocco, Liliana BeatrizWing morphologyHeadsPeridomestic populationsTriatoma infestanshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Triatoma infestans is one of the main vectors for Trypanosoma cruzi transmission, a serious health problem in the Gran Chaco region. Triatomine persistence is partly due to peridomestic populations, which are the main source of house reinfestation and thus prevent vector control. The aim of this study was to determine phenotypic variations in peridomestic T. infestans populations from different geographical areas of the Chaco region in northwestern Argentina. Adult male and female T. infestans m orphotypes were collected in chicken coops from four departments of the provinces of Chaco (Güemes, GU), San Luis (Junín, JU), Córdoba (Cruz del Eje, CE) and Santiago del Estero (Choya, CH). The shape and size of right wings (n = 266) and heads (n = 269) were analyzed using landmark-based geometric morphometrics. Sexual dimorphism was significantly larger in females (GU, JU and CE wings shape and GU, CE and CH head size). The centroid (Cs) size of wings differed significantly in most T. infestans populations (H = 187.28, df = 3; p = 0.001), whereas differences in the Cs size of heads were found between CE and GU and JU and CH, with the highest mean Cs in CE and the smallest ones in CH (H = 123.12, df = 3, p = 0.00 between males; H = 79.92, df = 3, p = 0.001 between females). Discriminant analysis showed that wing conformation differed significantly between females and males from the study populations, excepting CH vs JU females and males (d2 = 1.47; p = 0.092 and d2 = 1.23; p = 0.169) and between CH vs. GU females and GU vs. JU in males. No differences were found in males from GU and JU. Mahalanobis distance (d2) showed significant differences in heads among all departments, without discriminating by sex. These results suggest sexual dimorphism in T. infestans head size and wing conformation as well as different population structures (high, low or no exchange of individuals) in peridomestic areas of the four Chaco region departments studied, probably due to geographic isolation.Fil: Lizarraga, Maria Alfonsina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; ArgentinaFil: Rodriguez, Claudia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Lopez, Ana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Soria, Carola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Ortiz, Valeria Azucena Paola. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Fisiología. Cátedra de Introducción A la Biología; ArgentinaFil: Crocco, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaElsevier2022-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/215532Lizarraga, Maria Alfonsina; Rodriguez, Claudia Susana; Lopez, Ana Graciela; Soria, Carola; Ortiz, Valeria Azucena Paola; et al.; Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina; Elsevier; SSRN Electronic Journal; 7-2022; 1-191556-5068CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.ssrn.com/abstract=4176118info:eu-repo/semantics/altIdentifier/doi/10.2139/ssrn.4176118info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:52Zoai:ri.conicet.gov.ar:11336/215532instacron: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 09:55:52.322CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
title Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
spellingShingle Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
Lizarraga, Maria Alfonsina
Wing morphology
Heads
Peridomestic populations
Triatoma infestans
title_short Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
title_full Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
title_fullStr Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
title_full_unstemmed Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
title_sort Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina
dc.creator.none.fl_str_mv Lizarraga, Maria Alfonsina
Rodriguez, Claudia Susana
Lopez, Ana Graciela
Soria, Carola
Ortiz, Valeria Azucena Paola
Crocco, Liliana Beatriz
author Lizarraga, Maria Alfonsina
author_facet Lizarraga, Maria Alfonsina
Rodriguez, Claudia Susana
Lopez, Ana Graciela
Soria, Carola
Ortiz, Valeria Azucena Paola
Crocco, Liliana Beatriz
author_role author
author2 Rodriguez, Claudia Susana
Lopez, Ana Graciela
Soria, Carola
Ortiz, Valeria Azucena Paola
Crocco, Liliana Beatriz
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Wing morphology
Heads
Peridomestic populations
Triatoma infestans
topic Wing morphology
Heads
Peridomestic populations
Triatoma infestans
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Triatoma infestans is one of the main vectors for Trypanosoma cruzi transmission, a serious health problem in the Gran Chaco region. Triatomine persistence is partly due to peridomestic populations, which are the main source of house reinfestation and thus prevent vector control. The aim of this study was to determine phenotypic variations in peridomestic T. infestans populations from different geographical areas of the Chaco region in northwestern Argentina. Adult male and female T. infestans m orphotypes were collected in chicken coops from four departments of the provinces of Chaco (Güemes, GU), San Luis (Junín, JU), Córdoba (Cruz del Eje, CE) and Santiago del Estero (Choya, CH). The shape and size of right wings (n = 266) and heads (n = 269) were analyzed using landmark-based geometric morphometrics. Sexual dimorphism was significantly larger in females (GU, JU and CE wings shape and GU, CE and CH head size). The centroid (Cs) size of wings differed significantly in most T. infestans populations (H = 187.28, df = 3; p = 0.001), whereas differences in the Cs size of heads were found between CE and GU and JU and CH, with the highest mean Cs in CE and the smallest ones in CH (H = 123.12, df = 3, p = 0.00 between males; H = 79.92, df = 3, p = 0.001 between females). Discriminant analysis showed that wing conformation differed significantly between females and males from the study populations, excepting CH vs JU females and males (d2 = 1.47; p = 0.092 and d2 = 1.23; p = 0.169) and between CH vs. GU females and GU vs. JU in males. No differences were found in males from GU and JU. Mahalanobis distance (d2) showed significant differences in heads among all departments, without discriminating by sex. These results suggest sexual dimorphism in T. infestans head size and wing conformation as well as different population structures (high, low or no exchange of individuals) in peridomestic areas of the four Chaco region departments studied, probably due to geographic isolation.
Fil: Lizarraga, Maria Alfonsina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina
Fil: Rodriguez, Claudia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Lopez, Ana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Soria, Carola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
Fil: Ortiz, Valeria Azucena Paola. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Fisiología. Cátedra de Introducción A la Biología; Argentina
Fil: Crocco, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina
description Triatoma infestans is one of the main vectors for Trypanosoma cruzi transmission, a serious health problem in the Gran Chaco region. Triatomine persistence is partly due to peridomestic populations, which are the main source of house reinfestation and thus prevent vector control. The aim of this study was to determine phenotypic variations in peridomestic T. infestans populations from different geographical areas of the Chaco region in northwestern Argentina. Adult male and female T. infestans m orphotypes were collected in chicken coops from four departments of the provinces of Chaco (Güemes, GU), San Luis (Junín, JU), Córdoba (Cruz del Eje, CE) and Santiago del Estero (Choya, CH). The shape and size of right wings (n = 266) and heads (n = 269) were analyzed using landmark-based geometric morphometrics. Sexual dimorphism was significantly larger in females (GU, JU and CE wings shape and GU, CE and CH head size). The centroid (Cs) size of wings differed significantly in most T. infestans populations (H = 187.28, df = 3; p = 0.001), whereas differences in the Cs size of heads were found between CE and GU and JU and CH, with the highest mean Cs in CE and the smallest ones in CH (H = 123.12, df = 3, p = 0.00 between males; H = 79.92, df = 3, p = 0.001 between females). Discriminant analysis showed that wing conformation differed significantly between females and males from the study populations, excepting CH vs JU females and males (d2 = 1.47; p = 0.092 and d2 = 1.23; p = 0.169) and between CH vs. GU females and GU vs. JU in males. No differences were found in males from GU and JU. Mahalanobis distance (d2) showed significant differences in heads among all departments, without discriminating by sex. These results suggest sexual dimorphism in T. infestans head size and wing conformation as well as different population structures (high, low or no exchange of individuals) in peridomestic areas of the four Chaco region departments studied, probably due to geographic isolation.
publishDate 2022
dc.date.none.fl_str_mv 2022-07
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/11336/215532
Lizarraga, Maria Alfonsina; Rodriguez, Claudia Susana; Lopez, Ana Graciela; Soria, Carola; Ortiz, Valeria Azucena Paola; et al.; Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina; Elsevier; SSRN Electronic Journal; 7-2022; 1-19
1556-5068
CONICET Digital
CONICET
url http://hdl.handle.net/11336/215532
identifier_str_mv Lizarraga, Maria Alfonsina; Rodriguez, Claudia Susana; Lopez, Ana Graciela; Soria, Carola; Ortiz, Valeria Azucena Paola; et al.; Phenotypic Variability of Peridomestic Triatoma Infestans Populations in Areas of the Chaco Region in Northwestern Argentina; Elsevier; SSRN Electronic Journal; 7-2022; 1-19
1556-5068
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.ssrn.com/abstract=4176118
info:eu-repo/semantics/altIdentifier/doi/10.2139/ssrn.4176118
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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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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