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New SNPs and InDel Variations in SlMYB12 Associated with Regulation of Pink Color in Tomato

New SNPs and InDel Variations in SlMYB12 Associated with Regulation of Pink Color in Tomato Pink-fruited tomato is characterized by transparent peel with lack of flavonoid NC (Naringenin Chalcone). SlMYB12 is a transcription regulator of NC biosynthesis and marked as candidate gene regulating pink color trait of tomato. Causative allelic variations have been reported previously in the SlMYB12 as 603-bp deletion in promoter region, two SNPs (− > A) and (C > T) in the second exon and (G > T) nucleotide substitution in the second intron. Here, we tested these variations in eighty-five pink inbred lines and two red lines. Among them fifty lines were homozygous for the 603-bp deletion and twenty-eight for the insertion (− > A). No variations were observed in pink lines (16NWS01, 16NWS24, 16NWS28, 16NWS29, 16NWS30, 16NWS34 and 16NWS82). Cloning and sequencing of SlMYB12 gene revealed two new SNPs G > A at 1794 bp and 1851 bp positions of genomic sequence in six lines. While 44.75 Kb deletion was identified proximate to SlMYB12 region in the line 16NWS82. These new variations together with previously reported markers could serve as valuable markers in pink tomato breeding. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tropical Plant Biology Springer Journals

New SNPs and InDel Variations in SlMYB12 Associated with Regulation of Pink Color in Tomato

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References (15)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Life Sciences; Plant Sciences; Plant Genetics and Genomics; Plant Breeding/Biotechnology; Plant Ecology; Transgenics
ISSN
1935-9756
eISSN
1935-9764
DOI
10.1007/s12042-017-9191-x
Publisher site
See Article on Publisher Site

Abstract

Pink-fruited tomato is characterized by transparent peel with lack of flavonoid NC (Naringenin Chalcone). SlMYB12 is a transcription regulator of NC biosynthesis and marked as candidate gene regulating pink color trait of tomato. Causative allelic variations have been reported previously in the SlMYB12 as 603-bp deletion in promoter region, two SNPs (− > A) and (C > T) in the second exon and (G > T) nucleotide substitution in the second intron. Here, we tested these variations in eighty-five pink inbred lines and two red lines. Among them fifty lines were homozygous for the 603-bp deletion and twenty-eight for the insertion (− > A). No variations were observed in pink lines (16NWS01, 16NWS24, 16NWS28, 16NWS29, 16NWS30, 16NWS34 and 16NWS82). Cloning and sequencing of SlMYB12 gene revealed two new SNPs G > A at 1794 bp and 1851 bp positions of genomic sequence in six lines. While 44.75 Kb deletion was identified proximate to SlMYB12 region in the line 16NWS82. These new variations together with previously reported markers could serve as valuable markers in pink tomato breeding.

Journal

Tropical Plant BiologySpringer Journals

Published: Jul 5, 2017

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