Transgenerational and within-generation plasticity shape thermal performance curves
| Autor: | José M. Bogdanovich, José M. Alruiz, Nadia R. Medina, Francisco Bozinovic, Grisel Cavieres |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
ENVIRONMENTAL TEMPERATURE TRANSGENERATIONAL PLASTICITY Offspring CLIMATE CHANGE EARLY EXPERIENCE Plasticity Biology 010603 evolutionary biology 01 natural sciences purl.org/becyt/ford/1 [https] thermal performance curve Ciencias Biológicas 03 medical and health sciences Animal science Transgenerational epigenetics early experience Thermal purl.org/becyt/ford/1.6 [https] Ecology Evolution Behavior and Systematics 030304 developmental biology Nature and Landscape Conservation Original Research 0303 health sciences transgenerational plasticity THERMAL PERFORMANCE CURVE Ecology Ecología Heat tolerance climate change Climbing Ectotherm environmental temperature Performance curves CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | Ecology and Evolution CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | Thermal performance curves (TPCs) compute the effects of temperature on the performance of ectotherms and are frequently used to predict the effect of environmental conditions and currently, climate change, on organismal vulnerability and sensitivity. Using Drosophila melanogaster as an animal model, we examined how different thermal environments affected the shape of the performance curve and their parameters. We measured the climbing speed as a measure of locomotor performance in adult flies and tested the ontogenetic and transgenerational effects of thermal environment on TPC shape. Parents and offspring were reared at 28 ± 0ºC (28C), 28 ± 4ºC (28V), and 30 ± 0ºC (30C). We found that both, environmental thermal variability (28V) and high temperature (30C) experienced during early ontogeny shaped the fruit fly TPC sensitivity. Flies reared at variable thermal environments shifted the TPC to the right and increased heat tolerance. Flies held at high and constant temperature exhibited lower maximum performance than flies reared at the variable thermal environment. Furthermore, these effects were extended to the next generation. The parental thermal environment had a significative effect on TPC and its parameters. Indeed, flies reared at 28V whose parents were held at a high and constant temperature (30C) had a lower heat tolerance than F1 of flies reared at 28C or 28V. Also, offspring of flies reared at variable thermal environment (28V) reached the maximum performance at a higher temperature than offspring of flies reared at 28C or 30C. Consequently, since TPC parameters are not fixed, we suggest cautiousness when using TPCs to predict the impact of climate change on natural populations. Fil: Cavieres Parada, Grisel Beatriz. Pontificia Universidad Católica de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentina Fil: Alruiz, José M.. Pontificia Universidad Católica de Chile; Chile Fil: Medina, Nadia R.. Pontificia Universidad Católica de Chile; Chile Fil: Bogdanovich, José M.. Pontificia Universidad Católica de Chile; Chile Fil: Bozinovic, Francisco. Pontificia Universidad Católica de Chile; Chile |
| Databáze: | OpenAIRE |
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