State of ex situ conservation of landrace groups of 25 major crops

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dc.creatorRamírez Villegas, Julián Armando
dc.creatorKhoury, Colin K.
dc.creatorAchicanoy Estrella, Harold Armando
dc.creatorDíaz, Maria Victoria
dc.creatorMendez Alzate, Andres Camilo
dc.creatorSosa, Chrystian C.
dc.creatorKehel, Zakaria
dc.creatorGuarino, Luigi
dc.creatorAbberton, Michael T.
dc.creatorAunario, Jorrel
dc.creatorAl Awar, Bashir
dc.creatorAlarcón, Juan Carlos
dc.creatorAmri, Ahmed
dc.creatorAnglin, Noelle L.
dc.creatorAzevedo, Vania
dc.creatorAziz, Khadija
dc.creatorCapilit, Grace Lee
dc.creatorChavez, Oswaldo
dc.creatorChebotarov, Dmytro
dc.creatorCostich, Denise E.
dc.creatorDebouck, Daniel G.
dc.creatorEllis, David
dc.creatorFalalou, Hamidou
dc.creatorFiu, Albert
dc.creatorGhanem, Michel Edmond
dc.creatorGiovannini, Peter
dc.creatorGoungoulou, Alphonse J.
dc.creatorGueye, Badara
dc.creatorEl Hobyb, Amal Ibn
dc.creatorJamnadass, Ramni
dc.creatorJones, Christopher S.
dc.creatorKpeki, Bienvenu
dc.creatorLee, Jae-Sung
dc.creatorMcNally, Kenneth L.
dc.creatorMuchugi, Alice
dc.creatorNdjiondjop, Marie-Noelle
dc.creatorOyatomi, Olaniyi
dc.creatorPayne, Thomas S.
dc.creatorRamachandran, Senthil
dc.creatorRossel, Genoveva
dc.creatorRoux, Nicolas Stephan M.
dc.creatorRuas, Max
dc.creatorSansaloni, Carolina P.
dc.creatorSardos, Julie
dc.creatorSetiyono, Tri Deri
dc.creatorTchamba, Marimagne
dc.creatorHouwe, Ines van den
dc.creatorVelazquez, J. Alejandro
dc.creatorVenuprasad, Ramaiah
dc.creatorWenzl, Peter
dc.creatorYazbek, Mariana
dc.creatorZavala, Cristian
dc.date2022-05
dc.date2022-05-12T08:03:00Z
dc.date2022-05-12T08:03:00Z
dc.date.accessioned2026-06-27T04:11:20Z
dc.descriptionCrop landraces have unique local agroecological and societal functions and offer important genetic resources for plant breeding. Recognition of the value of landrace diversity and concern about its erosion on farms have led to sustained efforts to establish ex situ collections worldwide. The degree to which these efforts have succeeded in conserving landraces has not been comprehensively assessed. Here we modelled the potential distributions of eco-geographically distinguishable groups of landraces of 25 cereal, pulse and starchy root/tuber/fruit crops within their geographic regions of diversity. We then analysed the extent to which these landrace groups are represented in genebank collections, using geographic and ecological coverage metrics as a proxy for genetic diversity. We find that ex situ conservation of landrace groups is currently moderately comprehensive on average, with substantial variation among crops; a mean of 63% ± 12.6% of distributions is currently represented in genebanks. Breadfruit, bananas and plantains, lentils, common beans, chickpeas, barley and bread wheat landrace groups are among the most fully represented, whereas the largest conservation gaps persist for pearl millet, yams, finger millet, groundnut, potatoes and peas. Geographic regions prioritized for further collection of landrace groups for ex situ conservation include South Asia, the Mediterranean and West Asia, Mesoamerica, sub-Saharan Africa, the Andean mountains of South America and Central to East Asia. With further progress to fill these gaps, a high degree of representation of landrace group diversity in genebanks is feasible globally, thus fulfilling international targets for their ex situ conservation.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/119519
dc.identifier.urihttp://hdl.handle.net/123456789/24453
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceRamirez-Villegas, J., Khoury, C. K., Achicanoy, H. A., Diaz, M. V., Mendez, A. C., Sosa, C. C., Kehel, Z., Guarino, L., Abberton, M., Aunario, J., Awar, B. A., Alarcon, J. C., Amri, A., Anglin, N. L., Azevedo, V., Aziz, K., Capilit, G. L., Chavez, O., Chebotarov, D., … Zavala, C. (2022). State of ex situ conservation of landrace groups of 25 major crops. In Nature Plants (Vol. 8, Issue 5, pp. 491–499). Springer Science and Business Media LLC. https://doi.org/10.1038/s41477-022-01144-8
dc.subjectclimate change adaptation
dc.subjectconservation agriculture
dc.subjectplant breeding
dc.subjectcrops
dc.subjectlandraces
dc.subjectmodelling
dc.subjectex-situ conservation
dc.subjectgermplasm conservation
dc.subjectgene banks
dc.subjectpotatoes
dc.subjectsweet potatoes
dc.titleState of ex situ conservation of landrace groups of 25 major crops
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)