Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana
Abstract Background Triatoma guasayana is considered an emerging vector of Chagas disease in the Southern Cone of South America. The presence of a triatomine population with brachypterous individuals, in which both wings are reduced, has recently been reported for this species. The aim of the presen...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2023-01-01
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| Series: | Parasites & Vectors |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13071-022-05570-7 |
| _version_ | 1797952631609491456 |
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| author | Gisel V. Gigena Claudia S. Rodríguez Federico G. Fiad María Laura Hernández Ana Laura Carbajal-de-la-Fuente Romina V. Piccinali Paz Sánchez Casaccia Antonieta Rojas de Arias Patricia Lobbia Luciana Abrahan Marinely Bustamante Gomez Jorge Espinoza Florencia Cano Julieta Nattero |
| author_facet | Gisel V. Gigena Claudia S. Rodríguez Federico G. Fiad María Laura Hernández Ana Laura Carbajal-de-la-Fuente Romina V. Piccinali Paz Sánchez Casaccia Antonieta Rojas de Arias Patricia Lobbia Luciana Abrahan Marinely Bustamante Gomez Jorge Espinoza Florencia Cano Julieta Nattero |
| author_sort | Gisel V. Gigena |
| collection | DOAJ |
| description | Abstract Background Triatoma guasayana is considered an emerging vector of Chagas disease in the Southern Cone of South America. The presence of a triatomine population with brachypterous individuals, in which both wings are reduced, has recently been reported for this species. The aim of the present study was to determine if flight-related traits varied across populations, if these traits could explain differences in flight capacity across populations and if flight-related traits are associated with geographic and/or climatic variation. Methods The study involved 66 male T. guasayana specimens from 10 triatomine populations. Digital images of wing, head and pronotum were used to estimate linear and geometric morphometric variables. Variations in size and shape were analysed using one-way analysis of variance and canonical variate analysis (CVA), respectively. Mantel tests were applied to analyse the relationship between morphometric and geographic distances, and the association between size measurements was analysed using Pearson’s correlation. We explored covariation between size and shape variables using partial least square analyses (PLS). The association of geographic and climatic variables with size measurements was tested using linear regression analyses. We performed PLS analyses for shape measurements. Results Wing size differed significantly across triatomine populations. The CVA showed that wing shape of the brachypterous population is well discriminated from that of the other populations. The Mantel test showed a positive and significant association between wing shape and geographic distances. The heads of the brachypterous population were significantly larger than those of the other populations. Similar to wing shape, the head shape of the brachypterous population was well discriminated from those of the other populations. Pronotum width did not show significant differences across populations. Geographic and climatic factors were associated with size and shape of both the wing and head, but not with pronotum width. Conclusions Most of the traits related to flight dispersal varied across populations. Wing shape and head shape were found to be better markers for differentiated morphological variation across populations. Head measurements also varied in accordance with this condition. Geographic and climatic variables were associated with most of the flight-related traits. Graphical Abstract |
| first_indexed | 2024-04-10T22:50:34Z |
| format | Article |
| id | doaj.art-86c20978cd4c4d1ca33c1f2a1bac5776 |
| institution | Directory Open Access Journal |
| issn | 1756-3305 |
| language | English |
| last_indexed | 2024-04-10T22:50:34Z |
| publishDate | 2023-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Parasites & Vectors |
| spelling | doaj.art-86c20978cd4c4d1ca33c1f2a1bac57762023-01-15T12:05:34ZengBMCParasites & Vectors1756-33052023-01-0116111410.1186/s13071-022-05570-7Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayanaGisel V. Gigena0Claudia S. Rodríguez1Federico G. Fiad2María Laura Hernández3Ana Laura Carbajal-de-la-Fuente4Romina V. Piccinali5Paz Sánchez Casaccia6Antonieta Rojas de Arias7Patricia Lobbia8Luciana Abrahan9Marinely Bustamante Gomez10Jorge Espinoza11Florencia Cano12Julieta Nattero13Cátedras de Morfología Animal y de Introducción a la Biología, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas Físicas y Naturales, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)/Universidad Nacional de CórdobaCátedras de Morfología Animal y de Introducción a la Biología, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas Físicas y Naturales, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)/Universidad Nacional de CórdobaCátedras de Morfología Animal y de Introducción a la Biología, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas Físicas y Naturales, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)/Universidad Nacional de CórdobaConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Centro Nacional de Diagnóstico e Investigación en Endemo-Epidemias (CeNDIE), Administración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos Malbrán” (ANLIS)Departamento de Ecología Genética y Evolución, Laboratorio de Eco-Epidemiología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresCentro Nacional de Diagnóstico e Investigación en Endemo-Epidemias (CeNDIE), Administración Nacional de Laboratorios e Institutos de Salud “Dr. Carlos Malbrán” (ANLIS)Centro para el Desarrollo de la Investigación Científica (CEDIC)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja (CRILAR), UNLAR, SEGEMAR, UNCa, CONICETDepartamento de Apoyo y Asesoramiento a Proyectos, Universidad Privada del ValleDepartamento de Biología, Laboratorio de Entomología Médica, Universidad Mayor de San SimónPrograma de Control de Vectores, Ministerio de Salud Pública de San JuanDepartamento de Ecología Genética y Evolución, Laboratorio de Eco-Epidemiología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresAbstract Background Triatoma guasayana is considered an emerging vector of Chagas disease in the Southern Cone of South America. The presence of a triatomine population with brachypterous individuals, in which both wings are reduced, has recently been reported for this species. The aim of the present study was to determine if flight-related traits varied across populations, if these traits could explain differences in flight capacity across populations and if flight-related traits are associated with geographic and/or climatic variation. Methods The study involved 66 male T. guasayana specimens from 10 triatomine populations. Digital images of wing, head and pronotum were used to estimate linear and geometric morphometric variables. Variations in size and shape were analysed using one-way analysis of variance and canonical variate analysis (CVA), respectively. Mantel tests were applied to analyse the relationship between morphometric and geographic distances, and the association between size measurements was analysed using Pearson’s correlation. We explored covariation between size and shape variables using partial least square analyses (PLS). The association of geographic and climatic variables with size measurements was tested using linear regression analyses. We performed PLS analyses for shape measurements. Results Wing size differed significantly across triatomine populations. The CVA showed that wing shape of the brachypterous population is well discriminated from that of the other populations. The Mantel test showed a positive and significant association between wing shape and geographic distances. The heads of the brachypterous population were significantly larger than those of the other populations. Similar to wing shape, the head shape of the brachypterous population was well discriminated from those of the other populations. Pronotum width did not show significant differences across populations. Geographic and climatic factors were associated with size and shape of both the wing and head, but not with pronotum width. Conclusions Most of the traits related to flight dispersal varied across populations. Wing shape and head shape were found to be better markers for differentiated morphological variation across populations. Head measurements also varied in accordance with this condition. Geographic and climatic variables were associated with most of the flight-related traits. Graphical Abstracthttps://doi.org/10.1186/s13071-022-05570-7Chagas diseaseHeadPronotumWingLinear morphometricsGeometric morphometrics |
| spellingShingle | Gisel V. Gigena Claudia S. Rodríguez Federico G. Fiad María Laura Hernández Ana Laura Carbajal-de-la-Fuente Romina V. Piccinali Paz Sánchez Casaccia Antonieta Rojas de Arias Patricia Lobbia Luciana Abrahan Marinely Bustamante Gomez Jorge Espinoza Florencia Cano Julieta Nattero Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana Parasites & Vectors Chagas disease Head Pronotum Wing Linear morphometrics Geometric morphometrics |
| title | Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana |
| title_full | Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana |
| title_fullStr | Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana |
| title_full_unstemmed | Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana |
| title_short | Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana |
| title_sort | phenotypic variability in traits related to flight dispersal in the wing dimorphic species triatoma guasayana |
| topic | Chagas disease Head Pronotum Wing Linear morphometrics Geometric morphometrics |
| url | https://doi.org/10.1186/s13071-022-05570-7 |
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