Abstract
The germplasm collections of the Vavilov Institute of Plant Industry, Russia represent the first germplasm collection made for potatoes, now numbering 8,680 accessions. It has tremendous historical and practical importance and a rich history, having been used to document a polyploid series in the cultivated species, to formulate initial taxonomic hypotheses in potato, for studies of interspecific hybridization, and serving as the germplasm base for Russian breeding efforts. Despite its importance and size, there has never been a study of its molecular diversity, and there were many gaps in its passport data. The purpose of the present study is to obtain morphological, ploidy, and microsatellite (SSR) data needed to set up a useful subset of the collection of cultivated potatoes and closely related wild species, and to use this collection to study cultivated potato taxonomy and phylogeny. Through assessments of viability, passport data, and chromosome counts, we selected a subset of 238 cultivated and 54 wild accessions. A morphological and nuclear SSR study of these collections distinguished only three cultivated species: Solanum curtilobum, S. juzepczukii and S. tuberosum, not the many more cultivated potato species of prior taxonomic treatments. The SSR study supports the ideas of S. acaule as one of the parental species for S. curtilobum and S. juzepczukii. The morphological and SSR results are very similar to other recent studies of cultivated species, and show the need to reclassify the collection of cultivated potatoes by modern taxonomic criteria.
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Acknowledgments
This study was supported by International Science and Technology Center (ISTC), grant no. 3329, by the ARS/USDA (http://www.vir.nw.ru/biot), and by NSF DEB 0316614 entitled PBI Solanum: A worldwide treatment (http://www.nhm.ac.uk/researchcuration/projects/solanaceaesource//).
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Gavrilenko, T., Antonova, O., Ovchinnikova, A. et al. A microsatellite and morphological assessment of the Russian National cultivated potato collection. Genet Resour Crop Evol 57, 1151–1164 (2010). https://doi.org/10.1007/s10722-010-9554-8
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DOI: https://doi.org/10.1007/s10722-010-9554-8