Genetic characterization of European potato onion (Allium cepa var Aggregatum G. Don) collections

Ruņģis, Dainis; Leino, Matti W.; Lepse, L.; Ban, Smiljana Goreta; Vahl, Erik de; Annamaa, K.; Põldma, Priit; Suojala‐Ahlfors, Terhi; Juškevičienė, D.; Kik, C.; Vågen, Ingunn M.; Stavělíková, H.

doi:10.1007/s10722-020-01014-2

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…The seed propagation takes place regularly every 5-7 years (Ibid). A possible relict of a similar growing system were found in modern times at Estonian Peipsi Lake where local growing tradition of multiplying onions included a seed generation every third or forth year (Ruņǵis et al 2020). The plant material in the Estonian cultivation system was found to be genetically heterogeneous and the genetic variation within the plant material from the region studied was greater than the variation in the older cultivars of shallots preserved in European gene bank collections at a whole, which was explained by the deliberate incrossing of ordinary onions (A. cepa) occurred (Ruņǵis et al 2020).…”

Section: Shallots From Seed?mentioning

confidence: 74%

“…The results of the genetic survey of European gene bank accessions of multiplying onions suggest that home gardens might have had an important role as plant genetic diversity hotspots, serving as a preserving environment for a surprisingly high number of unique genotypes from different European countries (Ruņǵis et al 2020). The collaboration for Allium that is part of the European Cooperative Programme for Plant Genetic Resources (ECPGR-Allium) has also documented older cultivation systems, such as the 4 years seed-propagation cycle known from villages near Lake Peipsi (Ruņǵis et al 2020). Onions have been grown there, mainly by Russian old believers, using the same method since the middle of the nineteenth century.…”

Section: Introductionmentioning

confidence: 99%

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Historical cultivars of Allium cepa L. (Aggregatum-Group) introduced to Sweden 1830–1860

Vahl

2023

Genet Resour Crop Evol

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This study presents the plant material of A. cepa L. Aggregatum-Group introduced and spread in Sweden between 1830 and 1860. The plant material exemplifies different principles regarding the denominations and shows the range of cultons available in the north of Europe by the time, but also examples of domestic local cultivars. It is essential to deepen the knowledge of the plant material and the name use connected to cultons spread in the nineteenth century. Historical records of old growing systems and propagation methods add valuable insights of the preservation values tied to the genetic diversity of the gene pool for future breeding. Differing practices and principles for distinguishing between potato onions, shallots and onions in European countries have sometimes made it difficult to understand historical records. The results of this study shows that shallot and potato onions, later mainly vegetatively propagated, were already in the nineteenth century occasionally propagated and spread by true seed in Europe. In addition, a Russian growing system with a true seed generation was found in literature. The article concludes that knowledge of older cultivation systems and introduction history deepens the link between the cultural-historical and the biological conservation values of plant material in long time preservation. Gene bank accessions may not only be valuable in breeding but also utilized and preserved as part of a biological or green heritage.

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Section: Shallots From Seed?mentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Historical cultivars of Allium cepa L. (Aggregatum-Group) introduced to Sweden 1830–1860

Vahl

2023

Genet Resour Crop Evol

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“…These organizations prioritize the collection and conservation of onion landraces, traditional varieties, and wild relatives that are adapted to regional conditions. Ex situ conservation methods form the cornerstone of onion conservation strategies in Europe [ 100 ].…”

Section: International and National Seed Banks And Germplasm Reposito...mentioning

confidence: 99%

Conservation and Global Distribution of Onion (Allium cepa L.) Germplasm for Agricultural Sustainability

Ochar,

Kim

2023

Plants

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Onion (Allium cepa L.) is recognized globally as a crucial vegetable crop, prized not only for its culinary applications but also for its numerous health-promoting properties. With climate change relentlessly exerting mounting challenges to agriculture, the preservation and deployment of onion germplasm has become critical to ensuring sustainable agriculture and safeguarding food security. Global onion germplasm collections function as repositories of genetic diversity, holding within them an extensive array of valuable traits or genes. These can be harnessed to develop varieties resilient to climate adversities. Therefore, detailed information concerning onion germplasm collections from various geographical regions can bolster their utility. Furthermore, an amplified understanding of the importance of fostering international and inter-institutional collaborations becomes essential. Sharing and making use of onion genetic resources can provide viable solutions to the looming agricultural challenges of the future. In this review, we have discussed the preservation and worldwide distribution of onion germplasm, along with its implications for agricultural sustainability. We have also underscored the importance of international and interinstitutional collaboration in onion germplasm collecting and conservation for agricultural sustainability.

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“…A high variability is present among shallot landraces from one group/genotype and obvious differences in phenotypes can be observed despite the landraces’ high kinship [ 14 ]. Rungis et al [ 15 ] report on the genetic characterization of 264 potato onion accessions from Norway, Sweden, Finland, Lithuania, Latvia, Estonia, Czech, and Croatia gene bank collections. Scandinavian and Baltic countries were overlapping in clusters whereas Croatian accessions are clearly differentiated from all other countries [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…Rungis et al [ 15 ] report on the genetic characterization of 264 potato onion accessions from Norway, Sweden, Finland, Lithuania, Latvia, Estonia, Czech, and Croatia gene bank collections. Scandinavian and Baltic countries were overlapping in clusters whereas Croatian accessions are clearly differentiated from all other countries [ 15 ]. The most cultivated European shallot species, the A. cepa Aggregatum group, is reported to have two bulb-forming subtypes [ 6 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Shallot Species and Subtypes Discrimination Based on Morphology Descriptors

Perković

Major

Ban

et al. 2020

Plants

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Shallots are an edible Alliaceous crop representing a group of genetically and morphologically different species. Shallot species determination is rather complex due to the high variability in phenotypes within a single species. Flower morphology has been successfully employed in shallot species determination; however, shallot florogenesis depends upon many genetic and environmental factors. There is a need for more accessible morphological descriptors used in shallot species determination, since flowering in shallot may not be consistent. In this study, we investigated the discriminating power of shallot vegetative and bulb morphology descriptors. European Cooperative Programme for Plant Genetic Resources morphology descriptors were used for describing 35 Croatian shallot accessions. The proposed methodology based on vegetative and bulb morphological descriptors could be used for shallot species discrimination. Additionally, two subtypes of A. cepa Aggregatum group were identified in this study: the first being the shallot type (1) and a potato onion type (2), which differed based on bulb morphology descriptors (bulb shape, bulb skin color, and a number of bulblets).

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Genetic characterization of European potato onion (Allium cepa var Aggregatum G. Don) collections

Cited by 8 publications

References 19 publications

Historical cultivars of Allium cepa L. (Aggregatum-Group) introduced to Sweden 1830–1860

Historical cultivars of Allium cepa L. (Aggregatum-Group) introduced to Sweden 1830–1860

Conservation and Global Distribution of Onion (Allium cepa L.) Germplasm for Agricultural Sustainability

Shallot Species and Subtypes Discrimination Based on Morphology Descriptors

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