A Molecular View of Flax Gene Pool

Fu, Yong‐Bi

doi:10.1007/978-3-030-23964-0_2

Cited by 7 publications

(4 citation statements)

References 82 publications

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“…Thus, the absence of a coherent taxonomic review for reference to communicate interspecific diversity has made Linum systematics and taxonomy unclear. Understanding this requirement, a recent conspectus was presented by Fu ( 58 ) using flax as a case, and different flax species were assigned to various gene pools based on the existing literature. L. usitatissimum and L. bienne were categorized under the primary gene pool as they are interfertile and share the same chromosome number.…”

Section: Taxonomy Gene Pool and Interspecific Hybridizationmentioning

confidence: 99%

Diversity of Linum genetic resources in global genebanks: from agro-morphological characterisation to novel genomic technologies – a review

et al. 2023

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Linseed or flaxseed is a well-recognized nutritional food with nutraceutical properties owing to high omega-3 fatty acid (α-Linolenic acid), dietary fiber, quality protein, and lignan content. Currently, linseed enjoys the status of a ‘superfood’ and its integration in the food chain as a functional food is evolving continuously as seed constituents are associated with lowering the risk of chronic ailments, such as heart diseases, cancer, diabetes, and rheumatoid arthritis. This crop also receives much attention in the handloom and textile sectors as the world’s coolest fabric linen is made up of its stem fibers which are endowed with unique qualities such as luster, tensile strength, density, bio-degradability, and non-hazardous nature. Worldwide, major linseed growing areas are facing erratic rainfall and temperature patterns affecting flax yield, quality, and response to biotic stresses. Amid such changing climatic regimes and associated future threats, diverse linseed genetic resources would be crucial for developing cultivars with a broad genetic base for sustainable production. Furthermore, linseed is grown across the world in varied agro-climatic conditions; therefore it is vital to develop niche-specific cultivars to cater to diverse needs and keep pace with rising demands globally. Linseed genetic diversity conserved in global genebanks in the form of germplasm collection from natural diversity rich areas is expected to harbor genetic variants and thus form crucial resources for breeding tailored crops to specific culinary and industrial uses. Global genebank collections thus potentially play an important role in supporting sustainable agriculture and food security. Currently, approximately 61,000 germplasm accessions of linseed including 1,127 wild accessions are conserved in genebanks/institutes worldwide. This review analyzes the current status of Linum genetic resources in global genebanks, evaluation for agro-morphological traits, stress tolerance, and nutritional profiling to promote their effective use for sustainable production and nutrition enhancement in our modern diets.

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Section: Taxonomy Gene Pool and Interspecific Hybridizationmentioning

confidence: 99%

Diversity of Linum genetic resources in global genebanks: from agro-morphological characterisation to novel genomic technologies – a review

et al. 2023

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“…Linum also contains a large number of wild perennial species that are distributed throughout the temperate and subtropical regions of Europe, Asia, and North America (Bolsheva et al, 2017;McDill et al, 2009). Several species of Linum have a history of cultivation as ornamentals, including L. perenne L., L. austriacum L., L. narbonense L., L. grandiflorum Desf., and L. flavum L., although few reports are available on the variation available for ornamental breeding, including for cut flower uses (Cullis, 2011;Diederichsen and Richards, 2003;Fu, 2019). Initial surveys of Linum have identified L. austriacum, L. lewisii Pursh, and L. perenne as the top perennial species of interest for ornamental flax breeding at the University of Minnesota (Betts et al, 2008).…”

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Perennial Flax: A Potential Cut Flower Crop

Tork

Anderson

Wyse

et al. 2022

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The genus Linum L. contains ≈200 primarily blue-flowered species, including several ornamentals, yet no reports exist regarding the cut flower potential of this genus. The objective of this study was to evaluate the cut flower potential of perennial flax cultivars (L. perenne L. ‘Blue Flax’ and ‘Sapphire’; Expt. 1, 2018) and accessions (L. austriacum L., L. lewisii Pursh., and L. perenne; Expt. 2, 2019), and record traits that will enable breeding and selection for improved cut flower performance. The mean vase life across both cultivars in Expt. 1 was 9.2 days. In Expt. 2, L. perenne had the longest average vase life (9.3 days), followed by L. austriacum (9.1 days) and L. lewisii (8.3 days). The floral preservative (Floralife 300) significantly increased vase life by an average of 1.7 days in Expt. 1, and 1.6 days in Expt. 2, and resulted in a significantly greater number of flowers (≈2x) in both experiments. Significant variation was observed among genotypes for most traits, including vase life (6.2 to 11.3 days) and number of flowers (1.3 to 10.5), highlighting the opportunities for improving the potential of cut flower perennial flax through breeding.

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“…Linum includes L. usitatissimum L., cultivated globally for fiber and oil, and its wild relative L. bienne Mill. (Fu, ). The two share a whole‐genome duplication that occurred 5–9 mya (Sveinsson et al., ).…”

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confidence: 99%

“…The two share a whole‐genome duplication that occurred 5–9 mya (Sveinsson et al., ). Although phenotypic and genotypic variation of flax have been studied in relation to crop improvement (Fu, ), population variation in L. bienne remains relatively unexplored (but see Uysal et al., ).…”

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confidence: 99%

Microsatellite marker development in the crop wild relative Linum bienne using genome skimming

et al. 2020

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Premise Nuclear microsatellite markers were developed for Linum bienne, the sister species of the crop L. usitatissimum, to provide molecular genetic tools for the investigation of L. bienne genetic diversity and structure. Methods and Results Fifty microsatellite loci were identified in L. bienne by means of genome skimming, and 44 loci successfully amplified. Of these, 16 loci evenly spread across the L. usitatissimum reference nuclear genome were used for genotyping six L. bienne populations. Excluding one monomorphic locus, the number of alleles per locus ranged from two to 12. Four out of six populations harbored private alleles. The levels of expected and observed heterozygosity were 0.076 to 0.667 and 0.000 to 1.000, respectively. All 16 loci successfully cross‐amplified in L. usitatissimum. Conclusions The 16 microsatellite loci developed here can be used for population genetic studies in L. bienne, and 28 additional loci that successfully amplified are available for further testing.

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A Molecular View of Flax Gene Pool

Cited by 7 publications

References 82 publications

Diversity of Linum genetic resources in global genebanks: from agro-morphological characterisation to novel genomic technologies – a review

Diversity of Linum genetic resources in global genebanks: from agro-morphological characterisation to novel genomic technologies – a review

Perennial Flax: A Potential Cut Flower Crop

Microsatellite marker development in the crop wild relative Linum bienne using genome skimming

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