Inter-annual and spatial climatic variability have led to a balance between local fluctuating selection and wide-range directional selection in a perennial grass species
| Autor: | Thomas Keep, Fabien Surault, Isabelle Litrico, E. Willner, Klaus J. Dehmer, Philippe Barre, Tom Ruttink, Isabel Roldán-Ruiz, R Veron, Mathew Hegarty, Jean-Paul Sampoux, Hilde Muylle, Thomas Ledauphin, José Luis Blanco-Pastor, S Rouet |
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| Přispěvatelé: | Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères (P3F), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Research Institute for Agricultural, Fisheries and Food (ILVO), Leibniz Institute of Plant Genetics and Crop Plant Research [Gatersleben] (IPK-Gatersleben), Institute of Biological, Environmental and Rural Sciences (IBERS), Biotechnology and Biological Sciences Research Council (BBSRC)-Aberystwyth University, ANR-14-JFAC-0004,GrassLandscape,Bridging landscape genomics and quantitative genetics for a regional adaptation of European grasslands to climate change(2014), European Project: 618105,EC:FP7:KBBE,FP7-ERANET-2013-RTD,FACCE ERA NET PLUS(2013), Aberystwyth University |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine [SDV.SA]Life Sciences [q-bio]/Agricultural sciences Climate Change Lolium perenne Quantitative Trait Loci Population Climatic adaptation Plant Science Quantitative trait locus Biology adaptive diversity 01 natural sciences 03 medical and health sciences Lolium genome-wide genotyping Selection Genetic Allele education Alleles 2. Zero hunger Functional ecology education.field_of_study natural genetic diversity Directional selection Phenology Ecology perennial ryegrass Allele diversity food and beverages intra-specific variability Original Articles climatic adaptation 15. Life on land Adaptation Physiological Genetics Population Phenotype 030104 developmental biology fluctuating selection Adaptation grassland 010606 plant biology & botany |
| Zdroj: | Annals of Botany Annals of Botany, Oxford University Press (OUP), 2021, 128 (3), pp.357-369. ⟨10.1093/aob/mcab057⟩ Ann Bot |
| ISSN: | 0305-7364 1095-8290 |
| DOI: | 10.1093/aob/mcab057⟩ |
| Popis: | Background and Aims The persistence of a plant population under a specific local climatic regime requires phenotypic adaptation with underlying particular combinations of alleles at adaptive loci. The level of allele diversity at adaptive loci within a natural plant population conditions its potential to evolve, notably towards adaptation to a change in climate. Investigating the environmental factors that contribute to the maintenance of adaptive diversity in populations is thus worthwhile. Within-population allele diversity at adaptive loci can be partly driven by the mean climate at the population site but also by its temporal variability. Methods The effects of climate temporal mean and variability on within-population allele diversity at putatively adaptive quantitative trait loci (QTLs) were evaluated using 385 natural populations of Lolium perenne (perennial ryegrass) collected right across Europe. For seven adaptive traits related to reproductive phenology and vegetative potential growth seasonality, the average within-population allele diversity at major QTLs (HeA) was computed. Key Results Significant relationships were found between HeA of these traits and the temporal mean and variability of the local climate. These relationships were consistent with functional ecology theory. Conclusions Results indicated that temporal variability of local climate has likely led to fluctuating directional selection, which has contributed to the maintenance of allele diversity at adaptive loci and thus potential for further adaptation. |
| Databáze: | OpenAIRE |
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