Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)

All members of Triatominae subfamily (Heteroptera: Reduviidae), potential vectors of Trypanosoma cruzi etiologic agent of the Chagas disease, feed on blood. Through evolution, these bugs have fixed special morphological, physiological, and behavioral aptations (adaptations and exaptations) adequate...

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Autores principales:	Otálora-Luna,Fernando, Pérez-Sánchez,Antonio J, Sandoval,Claudia, Aldana,Elis
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2015
Materias:	Latin America Chagas' disease Phylogeny Blood-sucking habit Triatomines
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100004
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spelling	oai:scielo:S0716-078X20150001000042015-12-21Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)Otálora-Luna,FernandoPérez-Sánchez,Antonio JSandoval,ClaudiaAldana,Elis Latin America Chagas' disease Phylogeny Blood-sucking habit Triatomines All members of Triatominae subfamily (Heteroptera: Reduviidae), potential vectors of Trypanosoma cruzi etiologic agent of the Chagas disease, feed on blood. Through evolution, these bugs have fixed special morphological, physiological, and behavioral aptations (adaptations and exaptations) adequate to feed on blood. Phylogeny suggests that triatomines evolved from predator reduvids which in turn descended from phytophagous hemipterans. Some pleisiomorphic traits developed by the reduvid ancestors of the triatomines facilitated and modeled hematophagy in these insects. Among them, mouthparts, saliva composition, enzymes, and digestive symbionts are the most noticeable. However, the decisive step that allowed the shift from predation to hematophagy was a change of behavior. The association of a predator reduvid with nesting vertebrate (≈110 to 32 Ma) permitted the shift from an arthropod prey to a vertebrate host. In this work, we review the phylogeny and dispersion of triatomines and the current controversy over the monophyly or polyphyly of this group. We also discuss how these insects were able to overcome, and even have taken advantage of, diverse ancestral and physical barriers to adapt to sucking blood of nidicolous vertebrates. We provide a Spanish version of this work.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.88 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100004en10.1186/S40693-014-0032-0
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Latin America Chagas' disease Phylogeny Blood-sucking habit Triatomines
spellingShingle	Latin America Chagas' disease Phylogeny Blood-sucking habit Triatomines Otálora-Luna,Fernando Pérez-Sánchez,Antonio J Sandoval,Claudia Aldana,Elis Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
description	All members of Triatominae subfamily (Heteroptera: Reduviidae), potential vectors of Trypanosoma cruzi etiologic agent of the Chagas disease, feed on blood. Through evolution, these bugs have fixed special morphological, physiological, and behavioral aptations (adaptations and exaptations) adequate to feed on blood. Phylogeny suggests that triatomines evolved from predator reduvids which in turn descended from phytophagous hemipterans. Some pleisiomorphic traits developed by the reduvid ancestors of the triatomines facilitated and modeled hematophagy in these insects. Among them, mouthparts, saliva composition, enzymes, and digestive symbionts are the most noticeable. However, the decisive step that allowed the shift from predation to hematophagy was a change of behavior. The association of a predator reduvid with nesting vertebrate (≈110 to 32 Ma) permitted the shift from an arthropod prey to a vertebrate host. In this work, we review the phylogeny and dispersion of triatomines and the current controversy over the monophyly or polyphyly of this group. We also discuss how these insects were able to overcome, and even have taken advantage of, diverse ancestral and physical barriers to adapt to sucking blood of nidicolous vertebrates. We provide a Spanish version of this work.
author	Otálora-Luna,Fernando Pérez-Sánchez,Antonio J Sandoval,Claudia Aldana,Elis
author_facet	Otálora-Luna,Fernando Pérez-Sánchez,Antonio J Sandoval,Claudia Aldana,Elis
author_sort	Otálora-Luna,Fernando
title	Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
title_short	Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
title_full	Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
title_fullStr	Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
title_full_unstemmed	Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)
title_sort	evolution of hematophagous habit in triatominae (heteroptera: reduviidae)
publisher	Sociedad de Biología de Chile
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100004
work_keys_str_mv	AT otaloralunafernando evolutionofhematophagoushabitintriatominaeheteropterareduviidae AT perezsanchezantonioj evolutionofhematophagoushabitintriatominaeheteropterareduviidae AT sandovalclaudia evolutionofhematophagoushabitintriatominaeheteropterareduviidae AT aldanaelis evolutionofhematophagoushabitintriatominaeheteropterareduviidae
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Evolution of hematophagous habit in Triatominae (Heteroptera: Reduviidae)

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