Estudio genómico del potencial adaptativo frente al cambio climático en coníferas sensibles a la sequía
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2023
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24/04/2023
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Universidad Complutense de Madrid
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Las coníferas constituyen uno de los grupos más antiguos de las plantas con semillas siendo el más ampliamente distribuido dentro de las gimnospermas. La familia Pinaceae es considerada la más abundante, ocupando un extenso rango de condiciones ambientales. Esta diversidad hace que este grupo sea idóneo como sistema experimental para desarrollar estudios acerca de la respuesta de los bosques a las variaciones ambientales. En esta tesis se han empleado cuatro especies de esta familia: Cedrus atlantica, Abies pinsapo, Abies marocana y Pinus uncinata. C. atlantica, A. pinsapo y A. marocana son especie endémicas y relictas, catalogadas en peligro de extinción por la IUCN. Estas tres especies junto con Pinus uncinata están asentadas en la cuenca mediterránea, donde se prevé que los efectos del cambio climático sean más acusados. Tanto es así que varias de las poblaciones de estas especies podrían llegar en poco tiempo al límite de su capacidad de adaptación y, actualmente, ya se están observando rápidas respuestas a esas perturbaciones como eventos de decaimiento a escalas amplias, descensos de crecimiento y aumento de la mortalidad...
Conifers constitute one of the oldest lineages of spermatophytes, being the mostwidely distributed among the gymnosperms. The Pinaceae family is considered the most abundant, inhabiting a wide range of environmental conditions. This diversity makes this group suitable as an experimental system to carry out studies on the response of forests to environmental variations. In this PhD thesis, four species of this family have been used: Abies marocana, Abies pinsapo, Cedrus atlantica and Pinus uncinata.A. marocana, A. pinsapo and C. atlantica are endemic and relict tree species, listed as endangered by the IUCN. These three species, and marginally P. uncinata, are located in the Mediterranean basin, where the effects of climate change are expected to be worse than in other regions. Some of the populations of these species are likely near to their limit of tolerance. Indeed, rapid responses to changing climate are already being observed, such as large-scale growth decline, dieback, and mortality events...
Conifers constitute one of the oldest lineages of spermatophytes, being the mostwidely distributed among the gymnosperms. The Pinaceae family is considered the most abundant, inhabiting a wide range of environmental conditions. This diversity makes this group suitable as an experimental system to carry out studies on the response of forests to environmental variations. In this PhD thesis, four species of this family have been used: Abies marocana, Abies pinsapo, Cedrus atlantica and Pinus uncinata.A. marocana, A. pinsapo and C. atlantica are endemic and relict tree species, listed as endangered by the IUCN. These three species, and marginally P. uncinata, are located in the Mediterranean basin, where the effects of climate change are expected to be worse than in other regions. Some of the populations of these species are likely near to their limit of tolerance. Indeed, rapid responses to changing climate are already being observed, such as large-scale growth decline, dieback, and mortality events...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Biológicas, leída el 24/04/2023. Tesis formato europeo (compendio de artículos)