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A gene-derived SNP-based high resolution linkage map of carrot including the location of QTL conditioning root and leaf anthocyanin pigmentation
- Pablo F. Cavagnaro, Massimo Iorizzo, Mehtap Yildiz, Douglas Senalik, Joshua Parsons, Shelby Ellison, Philipp W. Simon
- BMC genomics 2014 v.15 pp. 1118
- anthocyanins, antioxidant activity, carrots, chromosome mapping, color, high performance liquid chromatography, loci, petioles, pigmentation, quantitative trait loci, roots, single nucleotide polymorphism
- Background: Purple carrots accumulate large quantities of anthocyanins in their roots and leaves. These flavonoid pigments possess antioxidant activity and are implicated in providing health benefits. The lack of informative and saturated linkage maps associated with well characterized populations segregating for anthocyanin pigmentation have been limited. To investigate the genetic architecture conditioning anthocyanin pigmentation we scored root and petiole color visually and quantified root anthocyanin pigments by high performance liquid chromatography in segregating F2, F3 and F4 generations in a mapping population, mapped quantitative loci for these traits onto a dense gene-derived single nucleotide polymorphism (SNP)-based linkage map, and performed comparative trait mapping with two unrelated populations.