Comprehensive repository of coffee genetic resources, germplasm collections, biochemical data, and molecular markers from Ethiopia's center of origin.
Sources: Ethiopian Biodiversity Institute [1], EIAR Datahub [2], NCBI [6], DergiPark 2025 [3][7]
Ethiopia is the center of origin and diversity for Coffea arabica, harboring the primary gene pool for global coffee genetic improvement [3][7].
From the coffee forests of southwestern Ethiopia to the Harar highlands, diverse landraces and wild populations represent an invaluable genetic resource for breeding climate-resilient, disease-resistant, and high-quality coffee varieties. Recent molecular studies using RAD-seq and SSR markers have revealed new dimensions of this diversity, including previously undocumented populations in South Sudan that expand the known genetic base [8].
"Wide C. arabica genetic study brings new insights on movements and breeding history of the species. For the first time, wild C. arabica populations of South Sudan are shown to bring new genetic diversity as compared to Ethiopian wild arabicas. A structuration of the Ethiopian accessions surveyed in the 60's (FAO and Orstom) is unraveled. The traditional Bourbon/Typica varieties are genetically related to the Ethiopian cluster east of the Ethiopian coffee area."
The EBI maintains two major field gene banks for coffee genetic resources conservation [1].
Location: Oromia Region, Jimma Zone, Goma Woreda near Agaro
Elevation: 1,600 masl
Coordinates: 7°54' N, 36°39' E
Area: 21 hectares
Established: Two decades ago primarily for coffee genetic resources
Current status: 12 species of horticultural genetic resources conserved [1]
Location: Oromia Region, West Harerghe Zone, Kuni Woreda near Bedessa
Elevation: Not specified
Coordinates: 8°53' N, 40°46' E
Area: 7.8 hectares
Established: 2002 primarily for Harar coffee germplasm
Collection: Collected from Harar coffee growing areas
Threat: Coffee Berry Disease (CBD) is more pronounced in Harerghe area, leading to declining farmer interest [1]
Land use shift: Farmers switching to chat production
EBI response: "Compared to the size of damage incurred on Harar coffee genetic resources, however, the present holding is not adequate and hence, further collection missions should be initiated in areas that have not covered in the previous collection missions." [1]
Source: Ethiopian Biodiversity Institute, Horticulture Field Gene Banks [1]
Study: Genetic Variability of Ethiopian Coffee Accessions for Bean Biochemical Constituents [2]
Published: 2023, EIAR Datahub
DOI: 10.20372/eiar-rdm/WY0SB1
Dataset: Coffee Quality Profile Mapping of BenchMaji [9]
Published: December 2023, Ethiopian National Agri Data Hub
Description: Southwestern Ethiopia is the origin of Arabica coffee, possessing the largest diversity in coffee genetic resources [9]
Data includes: Quality profiles, cup characteristics
Access Dataset"Variability for coffee bean biochemical composition among the coffee accessions is vital for further quality improvement. However, lack of this information has been one of the major bottlenecks for any coffee quality improvement program."
Recent morphological diversity study of 26 Coffea arabica landrace germplasms from Yirgacheffe district [3][7].
Result: Significant variations (p<0.05) between and within accessions [3][7]
| Young leaf color | H = 1.414 |
| Leaf shape | H = 1.067 |
| Leaf apex shape | H = 0.908 |
| Young shoot color | H = 0.582 |
| Leaf petiole color | H = 0.429 |
"Coffea Arabica landraces germplasm having high seedling height, leaf length, number of paired leaves and leaf area should get emphasis during selection for plantation."
Source: International Journal of Life Sciences and Biotechnology, 2025 [3][7]
Title: Coffee Germplasm Collection in China Revealed by RAD-seq [6]
Submission: August 2025, Yunnan Dehong Institute of Tropical Agricultural Science
Data type: Raw sequence reads
Accession: PRJNA1309331
Data volume: 267 Gbases, 95,119 Mbytes [6]
View NCBI RecordGlobal genetic study of C. arabica including [8]:
Comprehensive biochemical data from Ethiopian coffee accessions [2][4].
*Ranges based on EIAR study of 101 accessions [2]
| Trait | CV (%) | PC1 Loading | Significance |
|---|---|---|---|
| Total Chlorogenic Acid | 14.2 | 0.89 | P<0.05 |
| Crude Fat | 12.8 | 0.87 | P<0.05 |
| Crude Protein | 10.5 | 0.76 | P<0.05 |
| Caffeine | 9.3 | 0.68 | P<0.05 |
| Trigonelline | 8.7 | 0.65 | P<0.05 |
| Dry Matter | 1.2 | 0.12 | ns |
"The first PC, with Eigenvalue greater than one, alone accounted for 47.9% of the total variation mainly due to the variation in total chlorogenic acid and crude fat content, suggesting that these traits are the major contributors for the observed variability." [2]
Location: Ruili City, Ministry of Agriculture and Rural Affairs
Accessions: 185 C. arabica accessions [6]
Geographic sources: Kenya, Burundi, Côte d'Ivoire, Colombia, Ethiopia, India, Portugal
Genetic groups: Bourbon/Typica, Ethiopian native, Introgression group
Molecular data: RAD-seq available for all accessions (PRJNA1309331)
Arabica Varieties Catalog: Comprehensive database of Arabica varieties [4][5]
Features: Genetic descriptions, performance data, adaptation profiles
Ethiopian varieties: Detailed profiles of 74110, 74112, 74158, Geisha, and others
Access CatalogResource: Ethiopian varieties reference guide [10]
Covers: Genetic description, history, cup characteristics of Ethiopian cultivars
Complement to: World Coffee Research catalog
Access Guide| Institution | Location | Ethiopian Accessions | Notes |
|---|---|---|---|
| CATIE | Costa Rica | ~200 | International coffee collection |
| IRD (France) | Reunion/France | FAO/ORSTOM survey material | Historical collections from 1960s [8] |
| Chinese Germplasm Repository | Ruili, China | Ethiopian group included | RAD-seq data available [6] |
Regional distribution of coffee production systems across Ethiopian growing regions [5].
| Region | Zone/District | Semi-Forest (%) | Garden (%) | Semi-Forest & Garden (%) | Plantation (%) | Forest (%) |
|---|---|---|---|---|---|---|
| Oromia | Mana | 64.71 | 17.65 | 17.65 | 0.00 | 0.00 |
| Oromia | Gomma | 63.64 | 18.18 | 13.64 | 4.55 | 0.00 |
| Oromia | Limu Kosa | 64.29 | 17.86 | 14.29 | 3.57 | 0.00 |
| Oromia | Yayo | 96.43 | 0.00 | 0.00 | 0.00 | 3.57 |
| Oromia | Hurumu | 100.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Oromia | Haru | 100.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Oromia | Nole Kaba | 100.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Oromia | Habro | 0.00 | 100.00 | 0.00 | 0.00 | 0.00 |
| Oromia | Daro Lebu | 0.00 | 100.00 | 0.00 | 0.00 | 0.00 |
| SNNPR | Kaffa/Gimbo | 95.00 | 0.00 | 0.00 | 0.00 | 5.00 |
| SNNPR | Sheka/Yeki | 66.67 | 20.83 | 8.33 | 4.17 | 0.00 |
| SNNPR | Anderacha | 62.50 | 25.00 | 6.25 | 6.25 | 0.00 |
| Sidama | Aleta Wendo | 35.00 | 50.00 | 15.50 | 0.00 | 0.00 |
| Sidama | Wondo Genet | 40.00 | 45.00 | 15.00 | 0.00 | 0.00 |
| Gedeo | Yirgachefe | 35.00 | 55.00 | 10.00 | 0.00 | 0.00 |
| Gedeo | Wenago | 35.29 | 47.06 | 17.65 | 0.00 | 0.00 |
Source: Cell Press Heliyon [5]
Share your research data, accession records, or molecular profiles to build a comprehensive Ethiopian coffee genetic resource.