QTL for fatty acid composition and yield in linseed (Linum usitatissimum L.)

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Santosh KumarSylvie Cloutier

Abstract

The combined SSR-SNP map and 20 QTL for agronomic and quality traits will assist in marker assisted breeding as well as map-based cloning of key genes in linseed. Flax is an important nutraceutical crop mostly because it is a rich source of omega-3 fatty acids and antioxidant compounds. Canada is the largest producer and exporter of oilseed flax (or linseed), creating a growing need to improve crop productivity and quality. In this study, a genetic map was constructed based on selected 329 single nucleotide polymorphic markers and 362 simple sequence repeat markers using a recombinant inbred line population of 243 individuals from a cross between the Canadian varieties CDC Bethune and Macbeth. The genetic map consisted of 15 linkage groups comprising 691 markers with an average marker density of one marker every 1.9 cM. A total of 20 quantitative trait loci (QTL) were identified corresponding to 14 traits. Three QTL each for oleic acid and stearic acid, two QTL each for linoleic acid and iodine value and one each for palmitic acid, linolenic acid, oil content, seed protein, cell wall, straw weight, thousand seed weight, seeds per boll, yield and days to maturity were identified. The QTL for cell wall, straw weight, seeds per bo...Continue Reading

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Citations

Aug 8, 2015·Evidence-based Complementary and Alternative Medicine : ECAM·Ivonne Alejandre-GarcíaMaría Luisa Villarreal
May 5, 2016·Functional & Integrative Genomics·Dinushika ThambugalaSylvie Cloutier
Sep 27, 2018·International Journal of Molecular Sciences·Braulio J Soto-CerdaFrank M You
Jul 5, 2018·BMC Genomics·Dongwei XieJianguang Su
Apr 9, 2020·Methods and Protocols·Frank M You, Sylvie Cloutier
Feb 2, 2021·3 Biotech·Neha SinghHemant Kumar Yadav
Apr 4, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jolanta Tomaszewska-GrasEmilia Fornal

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