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Ex situ collections of cultivated flax (Linum usitatissimum L.) and other species of the genus Linum L.

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Abstract

An overview of ex situ collections of cultivated flax (Linum usitatissimum L.) and 53 other species of the genus Linum L. is presented. The names of 33 genebanks in 23 countries preserving Linum germplasm and the species preserved at these places are provided. World genebanks engage in ex situ preservation of about 48,000 accessions of cultivated flax (Linum usitatissimum). However, possibly only 10,000 accessions of these are unique. Of the ca. 200 species of the genus Linum, other than L. usitatissimum, 53 are reported to be represented in the world’s ex situ collections with a total of about 900 accessions. Of these, 279 accessions alone refer to the wild progenitor of cultivated flax, Linum bienne Mill. However, L. bienne from the region of origin of cultivated flax is rarely represented in genebank collections. References to publications describing the techniques for ex situ conservation and the infraspecific variation of cultivated flax are made. It is suggested that taxonomic species delimitation within the genus Linum is in need of clarification and that the variation in Linum species for ornamental use or use in breeding is investigated.

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Acknowledgements

The author thanks Ms. G. Mitrow and Dr. P. Catling Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, for assistance in accessing taxonomic literature. The curators of flax collections in Bulgaria (S. Strajeru), Russia (N. Brutch, E. Prokhovinova, T.A. Rozhmina) and Poland (G. Silska) provided helpful information. Financial support for part of this project was received from the Saskatchewan Flax Development Commission, Saskatoon, Saskatchewan and the Matching Investment Initiative of Agriculture and Agri-Food Canada.

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    Axel Diederichsen

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Diederichsen, A. Ex situ collections of cultivated flax (Linum usitatissimum L.) and other species of the genus Linum L.. Genet Resour Crop Evol 54, 661–678 (2007). https://doi.org/10.1007/s10722-006-9119-z

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