ArticleHeredity2019
Genetic diversity and population divergences of an indigenous tree (Coffea mauritiana) in Reunion Island: role of climatic and geographical factors.
Article in Heredity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed.
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- Lithobiomes Heterogeneity and Geographic Distance Shape the Landscape Genomics Within Brazilian Mountain Systems.Ecology and evolution · 2025Article
- Variations in the root mycobiome and mycorrhizal fungi between different types of Vanilla forest farms on Réunion Island.Mycorrhiza · 2024Article
- Quantifying climatic suitability for tourism in Southwest Indian Ocean Tropical Islands: Applying the Holiday Climate Index to Réunion Island.International journal of biometeorology · 2024Article
- Relationships withinPlants (Basel, Switzerland) · 2024Article
- Climatic factors, but not geographic distance, promote genetic structure and differentiation of Cleistogenes squarrosa (Trin.) Keng populations.Frontiers in bioinformatics · 2024Article
- How ancient forest fragmentation and riparian connectivity generate high levels of genetic diversity in a microendemic Malagasy tree.Molecular ecology · 2023Article
- Environmental stress influences Malesian Lamiaceae distributions.Ecology and evolution · 2022Article
- Multi-Approach Analysis Reveals Local Adaptation in a Widespread Forest Tree of Reunion Island.Plant & cell physiology · 2021Article
- Drivers of population divergence and species differentiation in a recent group of indigenous orchids (Ecology and evolution · 2021Article
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- The East Asian Winter Monsoon Acts as a Major Selective Factor in the Intraspecific Differentiation of Drought-TolerantPlants (Basel, Switzerland) · 2020Article
- Genetic Diversity ofFrontiers in plant science · 2020Article
- Modelling and simulating Chikungunya spread with an unstructured triangular cellular automata.Infectious Disease Modelling · 2020Article
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Authors and funding
4 authors.
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Abstract
Oceanic islands are commonly considered as natural laboratories for studies on evolution and speciation. The evolutionary specificities of islands associated with species biology provide unique scenarios to study the role of geography and climate in driving population divergence. However, few studies have addressed this subject in small oceanic islands with heterogeneous climates. Being widely distributed in Reunion Island forest, Coffea mauritiana represents an interesting model case for investigating patterns of within-island differentiation at small spatial scale. In this study, we examined the genetic diversity and population divergences of C. mauritiana using SNP markers obtained from 323 individuals across 34 locations in Reunion Island. Using redundancy analysis, we further evaluated the contribution of geographic and climatic factors to shaping genetic divergence among populations. Genetic diversity analyses revealed that accessions clustered according to the source population, with further grouping in regional clusters. Genetic relationships among the regional clusters underlined a recent process of expansion in the form of step-by-step colonization on both sides of the island. Divergence among source populations was mostly driven by the joint effect of geographic distance and climatic heterogeneity. The pattern of isolation-by-geography was in accordance with the dispersal characteristics of the species, while isolation-by-environment was mostly explained by the heterogeneous rainfall patterns, probably associated with an asynchronous flowering among populations. These findings advance our knowledge on the patterns of genetic diversity and factors of population differentiation of species native to Reunion Island, and will also usefully guide forest management for conservation.
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