Ecological and genomic vulnerability to climate change across native populations of Robusta coffee (Coffea canephora).

Autor: Tournebize R; DIADE, CIRAD, IRD, Univ. Montpellier, Montpellier, France.; Instituto Gulbenkian de Ciência, Oeiras, Portugal., Borner L; CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France.; INRAE, Le Rheu, France., Manel S; CEFE, CNRS, EPHE-PSL University, IRD, Univ Montpellier, Montpellier, France., Meynard CN; CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France., Vigouroux Y; DIADE, CIRAD, IRD, Univ. Montpellier, Montpellier, France., Crouzillat D; NESTLE Research, Tours, France., Fournier C; Nestlé Research, Société des Produits Nestlé S.A., EPFL Innovation Park, Lausanne, Switzerland.; School of Medicine, University of Geneva, Geneva, Switzerland., Kassam M; Nestlé Research, Société des Produits Nestlé S.A., EPFL Innovation Park, Lausanne, Switzerland.; Danone Nutricia Research, Singapore., Descombes P; Nestlé Research, Société des Produits Nestlé S.A., EPFL Innovation Park, Lausanne, Switzerland., Tranchant-Dubreuil C; DIADE, CIRAD, IRD, Univ. Montpellier, Montpellier, France., Parrinello H; CNRS, INSERM, Univ. Montpellier, Montpellier, France.; Montpellier GenomiX, France Génomique, Montpellier, France., Kiwuka C; NARO, Kampala, Uganda., Sumirat U; ICCRI, Jember, Indonesia., Legnate H; CNRA, Divo, Ivory Coast., Kambale JL; University of Kisangani, Kisangani, Democratic Republic of the Congo., Sonké B; University of Yaoundé I, Yaoundé, Cameroon., Mahinga JC; INCA, Luanda, Angola., Musoli P; NARO, Kampala, Uganda., Janssens SB; Meise Botanic Garden, Meise, Belgium.; Department of Biology, KU Leuven, Leuven, Belgium., Stoffelen P; Meise Botanic Garden, Meise, Belgium., de Kochko A; DIADE, CIRAD, IRD, Univ. Montpellier, Montpellier, France., Poncet V; DIADE, CIRAD, IRD, Univ. Montpellier, Montpellier, France.
Jazyk: angličtina
Zdroj: Global change biology [Glob Chang Biol] 2022 Jul; Vol. 28 (13), pp. 4124-4142. Date of Electronic Publication: 2022 May 08.
DOI: 10.1111/gcb.16191
Abstrakt: The assessment of population vulnerability under climate change is crucial for planning conservation as well as for ensuring food security. Coffea canephora is, in its native habitat, an understorey tree that is mainly distributed in the lowland rainforests of tropical Africa. Also known as Robusta, its commercial value constitutes a significant revenue for many human populations in tropical countries. Comparing ecological and genomic vulnerabilities within the species' native range can provide valuable insights about habitat loss and the species' adaptive potential, allowing to identify genotypes that may act as a resource for varietal improvement. By applying species distribution models, we assessed ecological vulnerability as the decrease in climatic suitability under future climatic conditions from 492 occurrences. We then quantified genomic vulnerability (or risk of maladaptation) as the allelic composition change required to keep pace with predicted climate change. Genomic vulnerability was estimated from genomic environmental correlations throughout the native range. Suitable habitat was predicted to diminish to half its size by 2050, with populations near coastlines and around the Congo River being the most vulnerable. Whole-genome sequencing revealed 165 candidate SNPs associated with climatic adaptation in C. canephora, which were located in genes involved in plant response to biotic and abiotic stressors. Genomic vulnerability was higher for populations in West Africa and in the region at the border between DRC and Uganda. Despite an overall low correlation between genomic and ecological vulnerability at broad scale, these two components of vulnerability overlap spatially in ways that may become damaging. Genomic vulnerability was estimated to be 23% higher in populations where habitat will be lost in 2050 compared to regions where habitat will remain suitable. These results highlight how ecological and genomic vulnerabilities are relevant when planning on how to cope with climate change regarding an economically important species.
(© 2022 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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