Enset (Ensete ventricosum) landrace database

Enset (Ensete ventricosum) Landrace Database Muzemil, S; Olango, T.M, Yemataw, Z, et al. Note: This is a draft enset landrace database and a manuscript describing the database methodology, curation process, and comprehensive analysis is in preparation. Please check back for updates or contact the corresponding authors if you’re interested to contribute. DOI: 10.5281/zenodo.8287638 Version: 0 (Draft) License: CC BY-SA 4.0 Last Updated: 2025-1223 This database represents an effort to create a publicly available, open-access record of enset landrace lists with associated attributes that can be freely utilized by researchers, breeders, conservationists, and policymakers worldwide. Background: The Crop and Its Significance Enset (Ensete ventricosum (Welw.) Cheesman), commonly known as the “false banana” is a giant herbaceous monocarpic perennial belonging to the family Musaceae—the same family as bananas (Musa spp.). Unlike its fruit-bearing relatives, enset is cultivated for its starchy pseudostem and underground corm, which are harvested, fermented, and processed into storable food products. This unique crop serves as the primary staple food for approximately 20 million people across the densely populated highlands of southwestern Ethiopia, making it one of Africa’s most important indigenous food security crops. Despite its critical importance to Ethiopian food security and livelihoods, enset remains one of Africa’s most understudied domesticated crops. It hasn’t been cultivated outside Ethiopia, even though wild E. ventricosum populations occur naturally across the highlands of East and Southern Africa—from Ethiopia through Kenya, Uganda, and Tanzania to Zimbabwe and South Africa. This paradox of a crop with proven food security value yet extremely limited geographic adoption underscores the need for comprehensive research and documentation. Landrace Diversity: A Genetic Treasure Under Threat Domesticated enset exhibits extraordinary phenotypic diversity, with +1,200 named landraces documented across Ethiopia’s enset-growing regions. These landraces—developed and maintained through centuries of farmer selection and vegetative (clonal) propagation—span multiple ethnic groups and at least 27 distinct linguistic communities. This rich agrobiodiversity encompasses extensive variation in: • Morphological traits: Pseudostem and leaf coloration (green, red, purple, black), plant size and architecture, corm dimensions • Food and nutritional quality: Kocho (fermented bread) texture and taste, bulla (starch) yield, amicho (boiled corm) palatability • Agronomic performance: Maturity period, yield potential, drought tolerance, cold tolerance • Disease resistance: Tolerance to bacterial wilt (Xanthomonas vasicola pv. musacearum), corm rot (Erwinia spp.), and other pathogens • Fiber quality: Strength and durability of leaf sheath fibers used for rope, construction, and handicrafts • Medicinal properties: Traditional uses for bone healing, placenta expulsion, liver ailments, and other therapeutic applications Farmers actively recognize, select, and maintain landraces with specific trait combinations suited to their local environments, cultural preferences, and economic needs. This indigenous knowledge represents an invaluable but increasingly threatened resource. Conservation Challenge: Why This Database Matters Enset landrace diversity faces mounting threats from multiple sources: the spread of bacterial wilt disease (now present on up to 80% of farms in some regions), climate change and environmental degradation, agricultural modernization pressures, rural-urban migration of knowledgeable farmers, and the erosion of traditional cultivation practices. The loss of valuable enset genotypes has already been documented, with some landraces disappearing before they could be properly characterized or conserved. Current germplasm conservation efforts remain critically insufficient. As a vegetatively propagated crop with recalcitrant seeds, enset cannot be easily stored in conventional seed banks. Field gene banks—the primary conservation method—are costly to establish and maintain, requiring continuous cultivation and management. Only a handful of Ethiopian institutions currently maintain living collections, and these represent only a fraction of the total diversity present in farmers’ fields. Compounding these challenges, comprehensive landrace information has historically remained fragmented and inaccessible. Data are scattered across peer-reviewed publications, unpublished theses and dissertations, institutional survey reports, government records, and undocumented indigenous knowledge systems. This fragmentation has severely limited the ability of researchers, breeders, and policymakers to understand the full scope of enset diversity, identify priority landraces for conservation, or develop evidence-based improvement strategies. Purpose and Scope: Building an Open Resource This database aims to addresses the critical information gap by consolidating enset landrace records from 32 source references spanning the period 1991–2017 into a single, standardized, and openly licensed resource. The current draft represents an initial effort to systematically organize landrace names, geographic distributions, trait information, and source documentation into an accessible format. Primary objectives of this database include: • Research acceleration: Providing consolidated baseline data on landrace diversity, nomenclature, and geographic distribution to support genetic, agronomic, and ethnobotanical studies. • Conservation prioritization: Enabling identification of rare, threatened, or undersampled landraces and geographic regions requiring urgent collection efforts • Breeding support: Linking landrace names to trait information (disease resistance, drought tolerance, food quality) to facilitate parent selection and improvement programs. • Knowledge preservation: Documenting traditional nomenclature and associated indigenous knowledge before it is lost to cultural erosion. • Comparative analysis: Facilitating cross-regional and cross-ethnic studies of landrace diversity, naming patterns, and trait distributions. • Policy guidance: Informing conservation strategies, agricultural development programs, and food security initiatives with empirical data. Current Status and Future Development This database is currently in draft form. The present version organizes landrace records and their associated traits extracted from published literature, grey literature (theses, reports), and institutional survey data. We acknowledge that this compilation is incomplete and may contain errors in transcription, standardization, or interpretation. A comprehensive analysis of landrace diversity patterns, trait distributions, geographic clustering, and nomenclature harmonization is currently underway. The findings will be presented in a forthcoming peer-reviewed manuscript that will provide detailed methodology, validation procedures, and analytical results. We actively welcome contributions from the research community. If you have unpublished landrace data, corrections to existing records, additional trait information, or suggestions for database improvement, please contact the corresponding author. Collaborative efforts will strengthen this resource and maximize its value for enset research and conservation. Database Summary Metric Value Total records 64,747 Unique curated landrace names 1,724 Administrative zones covered 25 Linguistic groups 27 Survey years span 1991–2017 Number of source references 32 Data Fields The database contains 24 columns organized into the following categories: Identification Column Description Curated_name Standardized landrace name Reported_name Original name as reported in source Source Information Column Description Institution Contributing research institution References Literature citation or source Survey_Year Year(s) of data collection Geographic Information Column Description region Administrative region (SNNPR, Oromia) zone Administrative zone Wereda District Kebeles_landrace_recorded Local administrative units surveyed Geographic_proximity Location details Altitude Elevation range (m.a.s.l.) HHD Number of households surveyed Linguistic & Cultural Classification Column Description lingrp Linguistic group of farming community lanfam Language family (Omotic, Cushitic, Semitic) famsys Farming system classification Agronomic Traits Column Description Gender Plant sex (Male/Female) Food_value Food uses (Kocho, Bulla, Amicho) Xvm_tolerant Xanthomonas wilt resistance Medicinal Medicinal uses Drouhgt_stress Drought tolerance Morphological Descriptors Column Description Pseudostem color Color of pseudostem midrib color Leaf midrib color colour petiole Petiole color Unsorted Administrative Regions or Zones Unique Landraces Studies Reporting Total Records Wolaita 319 12 521 Gurage 383 11 478 Hadiya 319 9 464 Sidama 231 9 423 Kembata-Tembaro 314 8 421 Dawro 207 6 317 Gamo Goffa 230 7 276 Yem SPW 223 4 275 Kaffa 104 4 148 Sheka 98 3 129 Hadiya and Kembata-Tembaro 96 1 102 South Omo 78 2 78 Gurage and Silte 59 1 61 Sidama and Gedeo 52 1 55 Gedeo 35 4 40 W/SW Shewa 36 2 36 Oromo 35 3 35 Jimma 29 1 29 East Shewa 20 1 21 NA 14 1 15 Silte 3 2 3 Gedeo, Gurage 1 1 1 Keffa 1 1 1 Wolaita, Gamo Goffa 1 1 1 Yem 1 1 1 Language Families Family Unique Landraces Studies Reporting Total Records Omotic 1,154 19 1,701 Cushitic 997 18 1,631 Semitic 383 12 473 Semetic 68 1 69 NA 14 1 15 Farming Systems Unique Landraces Studies Reporting Total Records Ensetcost (Enset-dominant mixed) 1,331 21 2,185 Ensetdom (Enset-dominated) 664 16 993 Ensetminor (Enset as minor crop) 191 5 273 Ensetsec (Enset secondary) 71 2 73 NA 14 1 15 Cushitic 1 1 1 Contributing Institutions Institution Records SARI (Southern Agricultural Research Institute) 1,932 Hawassa University 264 Addis Ababa University (AAU) 187 Jimma University 93 Survey Years Year Records 1991 171 1995 94 1996 155 1998-2000 166 1999 98 2002 142 2003 34 2006 41 2008 303 2008-2009 274 2009 68 2010 105 2011 37 2012 142 2013 627 2014 151 2015 126 2016 65 2017 131 References (Publications, dissertations and other reports) Reference Records SARI (Unpublished) 633 Zerihun et al. 2016 572 Zerihun, 2010 274 Kefale and Sandford, 1991 171 Admasu, 2002 166 Woldemariam, 2008 152 Almaz, 2002 142 Yem TPC, 2015 131 Zippel and Kefale, 1995 119 Melese, 2012 119 CCRP-SARI 2013 118 Sabora, 2010 105 Bizuayehu, 2002 98 Ambachew et al 2018 93 SARI (unpublished) 88 Asnaketch, 1997 82 Fikre and Alemar, 2017 81 Temesgen, 2008 78 Gizachew, 2000 77 Spring 1996 73 Feta, 2008 73 Belachew et al. 2017 68 Hailu, 2009 68 Tesfaye and Zerihun et al. 2018 65 Chekora et al. 2017 55 Nida, 1996 52 Yemane and Fassil, 2006 41 Adanech Jarso, 2017 38 Eyasu, 2003 34 CCRP-SARI, 2013 24 Hunduma et al., 2015 20 Habtamu and Zemede 2011 17 Usage Notes 1. Multiple records per landrace: The database contains multiple entries for many landraces, reflecting documentation from different surveys, sources, and time periods. Users should aggregate by Curated_name when counting unique landraces. 2. Data completeness: Not all fields are populated for every record. Trait information (disease resistance, drought tolerance, food value) is available for a subset of entries. 3. Name standardization: The Curated_name column provides standardized names to reconcile spelling variations in Reported_name. 4. Citation: When using this database, please cite: > Muzemil, S., Olango, T.M., Yemataw, Z., et al. (2023). Enset (Ensete ventricosum) landrace database (Version 0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.8287638 Interested to Contribute? We welcome contributions from researchers, breeders, and conservationists working on enset. Please contact the corresponding authors, to discuss data submission, collaboration opportunities, or suggestions for database improvement.