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http://dx.doi.org/10.5352/JLS.2009.19.1.152

A Gene-based dCAPS Marker for Selecting old-gold-crimson (ogc) Fruit Color Mutation in Tomato  

Park, Young-Hoon (Department of Horticultural Bioscience, Pusan National University)
Lee, Yong-Jae (Department of Horticultural Bioscience, Pusan National University)
Kang, Jum-Soon (Department of Horticultural Bioscience, Pusan National University)
Choi, Young-Whan (Department of Horticultural Bioscience, Pusan National University)
Son, Beung-Gu (Department of Horticultural Bioscience, Pusan National University)
Publication Information
Journal of Life Science / v.19, no.1, 2009 , pp. 152-155 More about this Journal
Abstract
The old-gold-crimson ($og^c$) fruit color mutation produces deep red tomato fruit with high lycopene content. age is a null mutation allele of lycopene-${\beta}$-cyclase (Crt-b) gene (B locus) that converts lycopene to ${\beta}$-carotene in the cartenoid biosynthesis pathway in tomato. Breeding of high lycopene tomato cultivars can be accelerated by marker-assisted selection (MAS) for introgression of $og^c$ allele by using a gene-based DNA marker. In order to develop a marker, single nucleotide deletion of adenine(A) with. in a poly-A repeat that has been known to be responsible for frame-shift mutation of $og^c$ was confirmed by resequencing mutant allele and wild-type allele at B locus of several tomato lines. For allele discrimination and detection of $og^c$, derived CAPS (dCAPS) approach was used by designing a primer that artificially introduced restriction enzyme recognition site of Hin fI in PCR products from $og^c$ allele. This dCAPS marker is co-dominant gene-based PCR marker that can be efficiently used for MAS breeding program aiming the development of high lycopene tomato.
Keywords
Tomato; derived CAPS (dCAPS); marker-assisted selection (MAS); lycopene; old-gold-crimson ($og^c$);
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