Evidence map›Paper›PMID 34634128›Full record

ArticleAmerican journal of botany2021

Genetic diversity of wild and cultivated Coffea canephora in northeastern DR Congo and the implications for conservation.

Samuel Vanden Abeele, Steven B Janssens, Justin Asimonyio Anio, Yves Bawin, Jonas Depecker, Bienfait Kambale, Ithé Mwanga Mwanga, Tshimi Ebele, Salvator Ntore, Piet Stoffelen and 1 more

Abstract read
In one paragraph

Article in American journal of botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Nutritional Efficiency ofPlants (Basel, Switzerland) · 2025
    Article
  5. Article
  6. Article
  7. Phenotypic Diversity and Genetic Parameters ofPlants (Basel, Switzerland) · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Phylogeography and conservation gaps ofGenetic resources and crop evolution · 2022
    Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Samuel Vanden AbeeleMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0001-9100-3642
Steven B JanssensMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0003-1246-9474
Justin Asimonyio AnioCentre pour la Surveillance de la Biodiversité et Université de Kisangani, Kisangani, DR Congo.
Yves BawinMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0002-1663-6535
Jonas DepeckerMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0003-3235-3305
Bienfait KambaleCentre pour la Surveillance de la Biodiversité et Université de Kisangani, Kisangani, DR Congo.
Ithé Mwanga MwangaCentre de Recherche en Science Naturelles, Lwiro, DR Congo.
Tshimi EbeleInstitut National des Études et Recherches Agronomique, DR Congo, DR Congo.
Salvator NtoreMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.
Piet StoffelenMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0003-2547-0415
Filip VandelookMeise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium.ORCID 0000-0003-4591-5557

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

premiseMany cultivated coffee varieties descend from Coffea canephora, commonly known as Robusta coffee. The Congo Basin has a century-long history of Robusta coffee cultivation and breeding, and is hypothesized to be the region of origin of many of the cultivated Robusta varieties. Since little is known about the genetic composition of C. canephora in this region, we assessed the genetic diversity of wild and cultivated C. canephora shrubs in the Democratic Republic of the Congo.

methodsUsing 18 microsatellite markers, we studied the genetic composition of wild and backyard-grown C. canephora shrubs in the Tshopo and Ituri provinces and multiple accessions from the INERA Yangambi Coffee Collection. We assessed genetic clustering patterns, genetic diversity, and genetic differentiation between populations.

resultsGenetic differentiation was relatively strong between wild and cultivated C. canephora shrubs, and both gene pools harbored multiple unique alleles. Strong genetic differentiation was also observed between wild populations. The level of genetic diversity in wild populations was similar to that of the INERA Yangambi Coffee Collection, but local wild genotypes were mostly missing from that collection. Shrubs grown in the backyards were genetically similar to the breeding material from INERA Yangambi.

conclusionsMost C. canephora that is grown in local backyards originated from INERA breeding programs, while a few shrubs were obtained directly from surrounding forests. The INERA Yangambi Coffee Collection could benefit from an enrichment with local wild genotypes to increase the genetic resources available for breeding purposes and to support ex situ conservation.

Indexed as

CoffeaDemocratic Republic of the CongoGenetic MarkersGenetic VariationGenetic MarkersCongo Basincrop domesticationcrop wild relativesex situ conservationINERA YangambiRobusta coffeeRubiaceaetropical rainforest

Identifiers

PMID34634128
PMCPMC9305747

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.