Development and use of DNA markers for wheat breeding and breed guarantee in Japan
2013
Fujita, Y.
Wheat is a major cereal alongside rice and corn. In the last decade, wheat breeding has been promoted in Japan to cope with the expansion of food processing use due to diversification in the Japanese diet. Incidents of misleading food labels and distrust in imported foods have led to an increased interest regarding food safety and reliability among consumers. Therefore, a cultivar identification tool is required to guarantee domestic wheat cultivars. Because they can be applied regardless of the growth stage and tissue, DNA markers are a useful tool in breeding and subsequent breed guarantee. In recent years, DNA markers have been developed for disease resistance, pre-harvest sprouting resistance, and quality-related traits, such as grain hardness and dough properties. Marker assisted selection (MAS) has been established in wheat breeding programs. Investigating the conditions for the cultivar identification and DNA extraction of wheat food products revealed problems associated with applying DNA markers to breed guarantee. The status of development and use of DNA markers in wheat breeding and breed guarantee in Japan has been reviewed in this article.
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