Genetic characterization of European potato onion ( Allium cepa var Aggregatum G. Don) collections
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RESEARCH ARTICLE
Genetic characterization of European potato onion (Allium cepa var Aggregatum G. Don) collections Dainis Run ¸ g´is . Matti W. Leino . Lı¯ga Lepse . Smiljana Goreta Ban . Erik de Vahl . Ku¨lli Annamaa . Priit Po˜ldma . Terhi Suojala-Ahlfors . Danguol_e Jusˇkevicˇien_e . Chris Kik . Ingunn M. Va˚gen . Helena Staveˇlı´kova´
Received: 29 February 2020 / Accepted: 1 September 2020 Ó Springer Nature B.V. 2020
Abstract Potato onions (Allium cepa var aggregatum G. Don) are multiplying or aggregating onions, very similar to shallots and have been historically cultivated throughout Europe. Currently in Northern Europe they are maintained in home gardens and ex situ field collections. Potato onions are primarily vegetatively propagated, however in Estonia, near Lake Peipsi, this species has been propagated by seed since the seventeenth century. There is increasing interest in Northern Europe in utilizing this germplasm Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10722-020-01014-2) contains supplementary material, which is available to authorized users. D. Run ¸ g´is (&) Genetic Resource Centre, Latvian State Forest Research Institute ‘‘Silava’’, 111 Rigas St, Salaspils 2169, Latvia e-mail: [email protected] M. W. Leino The Archaeological Research Laboratory, Department of Archaeology and Classical Studies, Stockholm University, 106 91 Stockholm, Sweden L. Lepse Institute of Horticulture, Graudu iela 1, Cerin ¸ i, Krimu¯nu pag., Dobele 3701, Latvia S. Goreta Ban Institute of Agriculture and Tourism, K. Huguesa 8, 52440 Porecˇ, Croatia
in organic and/or sustainable farming systems. The genetic diversity and relationship between and within European potato onion collections is unclear. From historical records it is known that cultivation, exchange and trade of potato onion has occurred throughout Europe for hundreds of years. This study utilised molecular markers to assess genetic diversity, duplication of genotypes and relationships among and between Nordic, Baltic, Czech and Croatian potato onion collections. Of 264 accessions, 80 catalogued as unique had identical genotypes with one or more other accessions, and are putative duplicates. The genetic diversity within two Estonian sexually propagated accessions was comparable to that found in all of the S. Goreta Ban Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetosˇimunska 25, 10000 Zagreb, Croatia E. de Vahl The Swedish National Gene Bank for Vegetatively Propagated Horticultural Crops, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden K. Annamaa Estonian Crop Research Institute (ECRI), J. Aamisepa 1, 48309 Jo˜geva, Estonia P. Po˜ldma Department of Horticulture, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51014 Tartu, Estonia
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Genet Resour Crop Evol
vegetatively propagated accessions. Accessions from the Nordic countries grouped together geneti
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