2020
DOI: 10.1186/s12864-020-06922-2
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Genetic diversity analysis of a flax (Linum usitatissimum L.) global collection

Abstract: Background A sustainable breeding program requires a minimum level of germplasm diversity to provide varied options for the selection of new breeding lines. To maximize genetic gain of the North Dakota State University (NDSU) flax breeding program, we aimed to increase the genetic diversity of its parental stocks by incorporating diverse genotypes. For this purpose, we analyzed the genetic diversity, linkage disequilibrium, and population sub-structure of 350 globally-distributed flax genotypes wi… Show more

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Cited by 38 publications
(23 citation statements)
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References 84 publications
(106 reference statements)
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“…The negative correlation between diversity indices (H and I) and relatedness (average IBS coefficients) indicates that inbreeding and genetic drift play a significant role in reducing genetic variability in the studied population which results in increased differentiation among sub-populations. Similar phenomenon was also found in flax(64) and Arapaima gigas species(85).Parent selection for crossing from diverged population will allow us to create a new population with increased genetic diversity and transgressive segregation, and eventually will increase genetic gain. Pairwise F st statistic, a parameter describing population structure differentiation and the degree of divergence among populations (86), was estimated among five subpopulations.…”
supporting
confidence: 63%
See 1 more Smart Citation
“…The negative correlation between diversity indices (H and I) and relatedness (average IBS coefficients) indicates that inbreeding and genetic drift play a significant role in reducing genetic variability in the studied population which results in increased differentiation among sub-populations. Similar phenomenon was also found in flax(64) and Arapaima gigas species(85).Parent selection for crossing from diverged population will allow us to create a new population with increased genetic diversity and transgressive segregation, and eventually will increase genetic gain. Pairwise F st statistic, a parameter describing population structure differentiation and the degree of divergence among populations (86), was estimated among five subpopulations.…”
supporting
confidence: 63%
“…In all subpopulations, the distance for LD decay to its half maximum was always higher for C genome than A genome. (64). The high number of transition SNPs indicating that this mutation is more tolerable to natural selection (65).…”
Section: Linkage Disequilibrium Patternmentioning
confidence: 99%
“…napus . Earlier, our group conducted a genetic diversity study of flax using 373 germplasm accessions with 6200 SNP markers [ 60 ].…”
Section: Discussionmentioning
confidence: 99%
“…In recent years, with the development of sequencing technology, development of high-quality molecular markers in the whole genome has been realised. Random ampli ed polymorphic DNA (RAPD) [3][4][5], ampli ed fragment length polymorphism (AFLP) [6,7], simple sequence repeats (SSR) [8][9][10][11][12][13][14], and single nucleotide polymorphism (SNP) [15][16][17][18][19][20][21] molecular markers have been identi ed in ax. However, there no research has been conducted on ax InDel molecular markers.…”
Section: Introductionmentioning
confidence: 99%