Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality

Differences in snake venom composition occur across all taxonomic levels and it has been argued that this variation represents an adaptation that has evolved to facilitate the capture and digestion of prey and evasion of predators. <i>Bothrops atrox</i> is a terrestrial pitviper that is...

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Autores principales: Leijane F. Sousa, Matthew L. Holding, Tiago H. M. Del-Rei, Marisa M. T. Rocha, Rosa H. V. Mourão, Hipócrates M. Chalkidis, Benedito Prezoto, H. Lisle Gibbs, Ana M. Moura-da-Silva
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Acceso en línea:https://doaj.org/article/8b9128539ba041379845fc33f264f6e8
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spelling oai:doaj.org-article:8b9128539ba041379845fc33f264f6e82021-11-25T19:09:03ZIndividual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality10.3390/toxins131108142072-6651https://doaj.org/article/8b9128539ba041379845fc33f264f6e82021-11-01T00:00:00Zhttps://www.mdpi.com/2072-6651/13/11/814https://doaj.org/toc/2072-6651Differences in snake venom composition occur across all taxonomic levels and it has been argued that this variation represents an adaptation that has evolved to facilitate the capture and digestion of prey and evasion of predators. <i>Bothrops atrox</i> is a terrestrial pitviper that is distributed across the Amazon region, where it occupies different habitats. Using statistical analyses and functional assays that incorporate individual variation, we analyzed the individual venom variability in <i>B. atrox</i> snakes from four different habitats (forest, pasture, degraded area, and floodplain) in and around the Amazon River in Brazil. We observed venom differentiation between spatially distinct <i>B. atrox</i> individuals from the different habitats, with venom variation due to both common (high abundance) and rare (low abundance) proteins. Moreover, differences in the composition of the venoms resulted in individual variability in functionality and heterogeneity in the lethality to mammals and birds, particularly among the floodplain snakes. Taken together, the data obtained from individual venoms of <i>B. atrox</i> snakes, captured in different habitats from the Brazilian Amazon, support the hypothesis that the differential distribution of protein isoforms results in functional distinctiveness and the ability of snakes with different venoms to have variable toxic effects on different prey.Leijane F. SousaMatthew L. HoldingTiago H. M. Del-ReiMarisa M. T. RochaRosa H. V. MourãoHipócrates M. ChalkidisBenedito PrezotoH. Lisle GibbsAna M. Moura-da-SilvaMDPI AGarticle<i>Bothrops atrox</i>individual variabilityvenom heterogeneityMedicineRENToxins, Vol 13, Iss 814, p 814 (2021)
institution DOAJ
collection DOAJ
language EN
topic <i>Bothrops atrox</i>
individual variability
venom heterogeneity
Medicine
R
spellingShingle <i>Bothrops atrox</i>
individual variability
venom heterogeneity
Medicine
R
Leijane F. Sousa
Matthew L. Holding
Tiago H. M. Del-Rei
Marisa M. T. Rocha
Rosa H. V. Mourão
Hipócrates M. Chalkidis
Benedito Prezoto
H. Lisle Gibbs
Ana M. Moura-da-Silva
Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
description Differences in snake venom composition occur across all taxonomic levels and it has been argued that this variation represents an adaptation that has evolved to facilitate the capture and digestion of prey and evasion of predators. <i>Bothrops atrox</i> is a terrestrial pitviper that is distributed across the Amazon region, where it occupies different habitats. Using statistical analyses and functional assays that incorporate individual variation, we analyzed the individual venom variability in <i>B. atrox</i> snakes from four different habitats (forest, pasture, degraded area, and floodplain) in and around the Amazon River in Brazil. We observed venom differentiation between spatially distinct <i>B. atrox</i> individuals from the different habitats, with venom variation due to both common (high abundance) and rare (low abundance) proteins. Moreover, differences in the composition of the venoms resulted in individual variability in functionality and heterogeneity in the lethality to mammals and birds, particularly among the floodplain snakes. Taken together, the data obtained from individual venoms of <i>B. atrox</i> snakes, captured in different habitats from the Brazilian Amazon, support the hypothesis that the differential distribution of protein isoforms results in functional distinctiveness and the ability of snakes with different venoms to have variable toxic effects on different prey.
format article
author Leijane F. Sousa
Matthew L. Holding
Tiago H. M. Del-Rei
Marisa M. T. Rocha
Rosa H. V. Mourão
Hipócrates M. Chalkidis
Benedito Prezoto
H. Lisle Gibbs
Ana M. Moura-da-Silva
author_facet Leijane F. Sousa
Matthew L. Holding
Tiago H. M. Del-Rei
Marisa M. T. Rocha
Rosa H. V. Mourão
Hipócrates M. Chalkidis
Benedito Prezoto
H. Lisle Gibbs
Ana M. Moura-da-Silva
author_sort Leijane F. Sousa
title Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
title_short Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
title_full Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
title_fullStr Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
title_full_unstemmed Individual Variability in <i>Bothrops</i> <i>atrox</i> Snakes Collected from Different Habitats in the Brazilian Amazon: New Findings on Venom Composition and Functionality
title_sort individual variability in <i>bothrops</i> <i>atrox</i> snakes collected from different habitats in the brazilian amazon: new findings on venom composition and functionality
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/8b9128539ba041379845fc33f264f6e8
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