Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)

Detalhes bibliográficos
Autor(a) principal: Millán Jimenez, Carolina
Data de Publicação: 2018
Outros Autores: Fornel, Rodrigo, Moreira, Gilson Rudinei Pires
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/224922
Resumo: This study aimed to test whether the consumption of different host plants influences the size and shape of mandibles and associated muscles in oligophagic insects throughout ontogeny. Larvae of Heliconius erato phyllis (Lepidoptera: Nymphalidae) were reared on four species of passion vines (Passifloraceae) and had the size of their head caspules, mandibles and associated adductor muscles measured afterward. Corresponding effects on shape and potential allometries in mandibles were also evaluted using geometric morphometric analysis based on scanning electron micrographs. Growth in mandibular size was greater compared to that of associated adductor muscles. There was no host plant effect on the sizes of either mandibles or adductor muscles. However, the shapes of mandibles was significantly different among passion vine species used as larval food. Greater differences in shape associated with wider teeth were obtained for Passiflora suberosa, whose leaves are tougher compared to those of P. misera, P. caerulea, and P. actinia; and, among which there was no difference in manbilular shape. Thus, it was inferred that the larval stage of this Heliconius species is able to adjust its mandible shape according to the toughness of host plants; a phenotypic plasticity mechanism that can be supposed to have evolved in order to facilitate processing these kinds of leaves.
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spelling Millán Jimenez, CarolinaFornel, RodrigoMoreira, Gilson Rudinei Pires2021-08-03T04:30:47Z20180120-0488http://hdl.handle.net/10183/224922001111227This study aimed to test whether the consumption of different host plants influences the size and shape of mandibles and associated muscles in oligophagic insects throughout ontogeny. Larvae of Heliconius erato phyllis (Lepidoptera: Nymphalidae) were reared on four species of passion vines (Passifloraceae) and had the size of their head caspules, mandibles and associated adductor muscles measured afterward. Corresponding effects on shape and potential allometries in mandibles were also evaluted using geometric morphometric analysis based on scanning electron micrographs. Growth in mandibular size was greater compared to that of associated adductor muscles. There was no host plant effect on the sizes of either mandibles or adductor muscles. However, the shapes of mandibles was significantly different among passion vine species used as larval food. Greater differences in shape associated with wider teeth were obtained for Passiflora suberosa, whose leaves are tougher compared to those of P. misera, P. caerulea, and P. actinia; and, among which there was no difference in manbilular shape. Thus, it was inferred that the larval stage of this Heliconius species is able to adjust its mandible shape according to the toughness of host plants; a phenotypic plasticity mechanism that can be supposed to have evolved in order to facilitate processing these kinds of leaves.El objetivo fue analizar si el consumo de diferentes plantas influenciaba el tamaño/forma de las mandíbulas de larvas de lepidópteros oligófagas y si dicho consumo ocasionaba tasas de crecimiento diferenciadas entre el músculo aductor mandibular y las mandíbulas durante su ontogénesis. Para esto se usaron larvas de Heliconius erato criadas en cuatro plantas hospederas naturales, a las que se les tomaron medidas de longitud de cápsula cefálica, tamaño mandibular y área del músculo aductor. Para detectar eventuales diferencias de forma mandibular se empleó microscopía electrónica y morfometria geométrica, y para posibles cambios alométricos se realizaron comparaciones entre curvas de crecimiento mandíbula vs. músculo aductor de los individuos criados en las cuatro plantas hospederas. Se encontró que no existen diferencias de tamaño entre las mandíbulas ni en músculos aductores de individuos criados en las diferentes plantas pero la forma mandibular fue significativamente diferente, mostrando una relación directa con la planta hospedera usada como alimento. Generalmente, la mandíbula creció proporcionalmente más que el músculo aductor, cuyo crecimiento fue estable. El cambio más significativo fue el alargamiento de los dientes incisivos en mandíbulas de larvas criadas con Passiflora suberosa. Se sugiere que esto se debe a que las hojas de esta especie poseen mayor dureza comparadas con las otras y que el desarrollar dientes largos facilitaría su corte y consumo.application/pdfengRevista Colombiana de Entomologia. Bogotá, Colombia. Vol. 44, n. 2 (jul/dez 2018), p. 273-282Borboletas heliconianasLarvaAlometria mandibularHeliconius erato phyllisHeliconian butterfliesLarvae morphologyMandibular allometryFeeding adaptationsPlasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)Phenotypic plasticity in Heliconius erato (Lepidoptera: Nymphalidae) mandibles induced by different host plants (Passifloraceae) Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001111227.pdf.txt001111227.pdf.txtExtracted Texttext/plain47752http://www.lume.ufrgs.br/bitstream/10183/224922/2/001111227.pdf.txtb74ad2ad30d83c01edd6456156839153MD52ORIGINAL001111227.pdfTexto completo (espanhol)application/pdf1092796http://www.lume.ufrgs.br/bitstream/10183/224922/1/001111227.pdf8b4bee8fad6667d6690f809d067ccc48MD5110183/2249222021-08-18 04:35:59.154382oai:www.lume.ufrgs.br:10183/224922Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-08-18T07:35:59Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
dc.title.alternative.en.fl_str_mv Phenotypic plasticity in Heliconius erato (Lepidoptera: Nymphalidae) mandibles induced by different host plants (Passifloraceae)
title Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
spellingShingle Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
Millán Jimenez, Carolina
Borboletas heliconianas
Larva
Alometria mandibular
Heliconius erato phyllis
Heliconian butterflies
Larvae morphology
Mandibular allometry
Feeding adaptations
title_short Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
title_full Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
title_fullStr Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
title_full_unstemmed Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
title_sort Plasticidad fenotípica en mandíbulas de Heliconius erato (Lepidoptera: Nymphalidae) inducida por diferentes plantas hospederas (Passifloraceae)
author Millán Jimenez, Carolina
author_facet Millán Jimenez, Carolina
Fornel, Rodrigo
Moreira, Gilson Rudinei Pires
author_role author
author2 Fornel, Rodrigo
Moreira, Gilson Rudinei Pires
author2_role author
author
dc.contributor.author.fl_str_mv Millán Jimenez, Carolina
Fornel, Rodrigo
Moreira, Gilson Rudinei Pires
dc.subject.por.fl_str_mv Borboletas heliconianas
Larva
Alometria mandibular
Heliconius erato phyllis
topic Borboletas heliconianas
Larva
Alometria mandibular
Heliconius erato phyllis
Heliconian butterflies
Larvae morphology
Mandibular allometry
Feeding adaptations
dc.subject.eng.fl_str_mv Heliconian butterflies
Larvae morphology
Mandibular allometry
dc.subject.spa.fl_str_mv Feeding adaptations
description This study aimed to test whether the consumption of different host plants influences the size and shape of mandibles and associated muscles in oligophagic insects throughout ontogeny. Larvae of Heliconius erato phyllis (Lepidoptera: Nymphalidae) were reared on four species of passion vines (Passifloraceae) and had the size of their head caspules, mandibles and associated adductor muscles measured afterward. Corresponding effects on shape and potential allometries in mandibles were also evaluted using geometric morphometric analysis based on scanning electron micrographs. Growth in mandibular size was greater compared to that of associated adductor muscles. There was no host plant effect on the sizes of either mandibles or adductor muscles. However, the shapes of mandibles was significantly different among passion vine species used as larval food. Greater differences in shape associated with wider teeth were obtained for Passiflora suberosa, whose leaves are tougher compared to those of P. misera, P. caerulea, and P. actinia; and, among which there was no difference in manbilular shape. Thus, it was inferred that the larval stage of this Heliconius species is able to adjust its mandible shape according to the toughness of host plants; a phenotypic plasticity mechanism that can be supposed to have evolved in order to facilitate processing these kinds of leaves.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2021-08-03T04:30:47Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/224922
dc.identifier.issn.pt_BR.fl_str_mv 0120-0488
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Revista Colombiana de Entomologia. Bogotá, Colombia. Vol. 44, n. 2 (jul/dez 2018), p. 273-282
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