ArticleBMC evolutionary biology2009
Current genetic differentiation of Coffea canephora Pierre ex A. Froehn in the Guineo-Congolian African zone: cumulative impact of ancient climatic changes and recent human activities.
Article in BMC evolutionary biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed.
- Uncovering the historic genetic diversity of Ugandan Robusta coffee germplasm: a foundation for core collection design.BMC plant biology · 2026Article
- Genetic improvement of robusta coffee (Frontiers in plant science · 2025Review
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- Leaf functional trait evolution and its putative climatic drivers in African Coffea species.Annals of botany · 2024Article
- Genomic-assisted breeding for climate-smart coffee.The plant genome · 2024Article
- Small RNAs: Promising Molecules to Tackle Climate Change Impacts in Coffee Production.Plants (Basel, Switzerland) · 2023Review
- Genome-Wide Admixture Mapping Identifies Wild Ancestry-of-Origin Segments in Cultivated Robusta Coffee.Genome biology and evolution · 2023Article
- Article
- A review of the indigenous coffee resources of Uganda and their potential for coffee sector sustainability and development.Frontiers in plant science · 2022Article
- Genetic diversity of wild and cultivated Coffea canephora in northeastern DR Congo and the implications for conservation.American journal of botany · 2021Article
- Rivers, not refugia, drove diversification in arboreal, sub-Saharan African snakes.Ecology and evolution · 2021Article
- Drivers of population divergence and species differentiation in a recent group of indigenous orchids (Ecology and evolution · 2021Article
- Article
- Effectiveness of Single Nucleotide Polymorphism Markers in Genotyping Germplasm Collections ofFrontiers in plant science · 2020Article
- Development and evaluation of a genome-wide Coffee 8.5K SNP array and its application for high-density genetic mapping and for investigating the origin of Coffea arabica L.Plant biotechnology journal · 2019Article
- High extinction risk for wild coffee species and implications for coffee sector sustainability.Science advances · 2019Article
- Revealing the Diversity of IntroducedTheScientificWorldJournal · 2017Article
- Article
- Identification by the DArTseq method of the genetic origin of the Coffea canephora cultivated in Vietnam and Mexico.BMC plant biology · 2016Article
- Shift in precipitation regime promotes interspecific hybridization of introduced Coffea species.Ecology and evolution · 2016Article
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAmong Coffea species, C. canephora has the widest natural distribution area in tropical African forests. It represents a good model for analyzing the geographical distribution of diversity in relation to locations proposed as part of the "refuge theory". In this study, we used both microsatellite (simple sequence repeat, SSR) and restriction fragment length polymorphism (RFLP) markers to investigate the genetic variation pattern of C. canephora in the Guineo-Congolean distribution zone.
resultsBoth markers were first compared in terms of their informativeness and efficiency in a study of genetic diversity and relationships among wild C. canephora genotypes. As expected, SSR markers were found to have a higher genetic distance detection capacity than RFLP. Nevertheless, similarity matrices showed significant correlations when Mantel's test was carried out (r = 0.66, p < 0.0001). Finally, both markers were equally effective for group discrimination and phylogenetic studies, but SSR markers tended to outperform RFLP markers in discriminating the source of an individual among diversity groups and in putative hybrid detection. Five well defined genetic groups, one in the Upper Guinean forests, the four others in the Lower Guinean forests, were identified, corresponding to geographical patterning in the individuals.
conclusionOur data suggested that the Dahomey Gap, a biogeographical barrier, played a role in wild C. canephora differentiation. Climatic variations during the Pleistocene and/or Holocene probably caused the subgroup differentiation in the Congolese zone through the presence of a mosaic of putative refugia. Recent hybridization between C. canephora diversity groups, both for spontaneous individuals and cultivars, was further characterised according to their geographic dissemination or breeding history as a consequence of human activities.
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