Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens
Species that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high fecundity, late maturation, and long lifespan.We measured morphological, physiological, developmental as well as demographic changes involved in the adaptation to desiccation. Notwithstanding a low heritability (h² = 0.237), desiccation resistance evolved extremely rapidly and few negative trade-offs were detected. Selected flies exhibited correlated increases in longevity, body size, the amount of body lipids, and bulk water content, and in the duration of the pupal stage. Females further delayed sexual maturation, decreased daily fecundity but retained high lifetime reproductive potential. No differences in male mating competitiveness were found. Selected and control lines differed in longevity but not in total female fecundity, demonstrating that A. ludens flies have the capability for fast adaptation to desiccation without loosing their reproductive capability. Thus, it seems that a rapid evolutionary response to desiccation in this polyphagous insect works as a buffer for environmental variation and reduces the strength of selection on reproductive traits.
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Subjects: | Anastrepha ludens, Disecación, Reproducción de insectos, Demografía, Análisis genético, |
Online Access: | http://onlinelibrary.wiley.com/doi/10.1111/evo.13070/full |
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KOHA-OAI-ECOSUR:100092024-03-12T12:35:48ZReasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens Tejeda, Marco Tulio 13212 Arredondo, José autor/a Liedo Fernández, Pablo Doctor autor/a 67 Pérez Staples, Diana autor/a 12373 Ramos Morales, Patricia autor/a Díaz Fleischer, Francisco Doctor autor/a 12372 textengSpecies that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high fecundity, late maturation, and long lifespan.We measured morphological, physiological, developmental as well as demographic changes involved in the adaptation to desiccation. Notwithstanding a low heritability (h² = 0.237), desiccation resistance evolved extremely rapidly and few negative trade-offs were detected. Selected flies exhibited correlated increases in longevity, body size, the amount of body lipids, and bulk water content, and in the duration of the pupal stage. Females further delayed sexual maturation, decreased daily fecundity but retained high lifetime reproductive potential. No differences in male mating competitiveness were found. Selected and control lines differed in longevity but not in total female fecundity, demonstrating that A. ludens flies have the capability for fast adaptation to desiccation without loosing their reproductive capability. Thus, it seems that a rapid evolutionary response to desiccation in this polyphagous insect works as a buffer for environmental variation and reduces the strength of selection on reproductive traits.Species that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high fecundity, late maturation, and long lifespan.We measured morphological, physiological, developmental as well as demographic changes involved in the adaptation to desiccation. Notwithstanding a low heritability (h² = 0.237), desiccation resistance evolved extremely rapidly and few negative trade-offs were detected. Selected flies exhibited correlated increases in longevity, body size, the amount of body lipids, and bulk water content, and in the duration of the pupal stage. Females further delayed sexual maturation, decreased daily fecundity but retained high lifetime reproductive potential. No differences in male mating competitiveness were found. Selected and control lines differed in longevity but not in total female fecundity, demonstrating that A. ludens flies have the capability for fast adaptation to desiccation without loosing their reproductive capability. Thus, it seems that a rapid evolutionary response to desiccation in this polyphagous insect works as a buffer for environmental variation and reduces the strength of selection on reproductive traits.Adobe Acrobat profesional 6.0 o superiorAnastrepha ludensDisecaciónReproducción de insectosDemografíaAnálisis genéticoDisponible en líneaEvolutionhttp://onlinelibrary.wiley.com/doi/10.1111/evo.13070/fullDisponible para usuarios de ECOSUR con su clave de acceso |
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Anastrepha ludens Disecación Reproducción de insectos Demografía Análisis genético Anastrepha ludens Disecación Reproducción de insectos Demografía Análisis genético |
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Anastrepha ludens Disecación Reproducción de insectos Demografía Análisis genético Anastrepha ludens Disecación Reproducción de insectos Demografía Análisis genético Tejeda, Marco Tulio 13212 Arredondo, José autor/a Liedo Fernández, Pablo Doctor autor/a 67 Pérez Staples, Diana autor/a 12373 Ramos Morales, Patricia autor/a Díaz Fleischer, Francisco Doctor autor/a 12372 Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
description |
Species that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high fecundity, late maturation, and long lifespan.We measured morphological, physiological, developmental as well as demographic changes involved in the adaptation to desiccation. Notwithstanding a low heritability (h² = 0.237), desiccation resistance evolved extremely rapidly and few negative trade-offs were detected. Selected flies exhibited correlated increases in longevity, body size, the amount of body lipids, and bulk water content, and in the duration of the pupal stage. Females further delayed sexual maturation, decreased daily fecundity but retained high lifetime reproductive potential. No differences in male mating competitiveness were found. Selected and control lines differed in longevity but not in total female fecundity, demonstrating that A. ludens flies have the capability for fast adaptation to desiccation without loosing their reproductive capability. Thus, it seems that a rapid evolutionary response to desiccation in this polyphagous insect works as a buffer for environmental variation and reduces the strength of selection on reproductive traits. |
format |
Texto |
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Anastrepha ludens Disecación Reproducción de insectos Demografía Análisis genético |
author |
Tejeda, Marco Tulio 13212 Arredondo, José autor/a Liedo Fernández, Pablo Doctor autor/a 67 Pérez Staples, Diana autor/a 12373 Ramos Morales, Patricia autor/a Díaz Fleischer, Francisco Doctor autor/a 12372 |
author_facet |
Tejeda, Marco Tulio 13212 Arredondo, José autor/a Liedo Fernández, Pablo Doctor autor/a 67 Pérez Staples, Diana autor/a 12373 Ramos Morales, Patricia autor/a Díaz Fleischer, Francisco Doctor autor/a 12372 |
author_sort |
Tejeda, Marco Tulio 13212 |
title |
Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
title_short |
Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
title_full |
Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
title_fullStr |
Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
title_full_unstemmed |
Reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens |
title_sort |
reasons for success rapid evolution for desiccation resistance and life-history changes in the polyphagous fly anastrepha ludens |
url |
http://onlinelibrary.wiley.com/doi/10.1111/evo.13070/full |
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