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Development of new markers to genotype the functional insertion of badh2, a gene responsible for fragrance in aromatic rice

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  • URLhttps://db.koreascholar.com/Article/Detail/294468
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한국육종학회 (The Korean Breeding Society)
초록

Aroma development in rice has been reported due to the lack of function of betaine aldehyde dehydrogenase gene (badh2) on rice chromosome 8. A lot of functional markers have been designed based on the InDels, such as 7bp deletion in exon 2, 803bp deletion in exon 4 and 5, 8bp deletion in exon 7, and 3bp insertion in exon 13. Although there were a lot of functional SNPs, other InDels have not been detected by a PCR-based marker. Here we developed a simple, co-dominant, functional cleaved amplified polymorphic sequence (CAPS) marker for fragrance trait based on 1bp insertion in exon 14. The developed marker showed a high efficiency in discriminating that special aromatic rice variety, and displayed perfect co-segregation with the trait of fragrance in the F2 population. This new marker developed in the present study would be useful in molecular breeding of fragrant rice varieties.

저자
  • Qiang He(Department of Plant Resources, College of Industrial Science)
  • Jae-Wan Park(Department of Plant Resources, College of Industrial Science)
  • Yoo-Hyun Cho(Department of Plant Resources, College of Industrial Science)
  • Soon-Wook Kwon(Department of Plant Bioscience, College of Natural Resources & Life Science)
  • Young-Sang Lee(Department of Medical Biotechnology, Soonchunhyang University)
  • Yong-Jin Park(Department of Plant Resources, College of Industrial Science, Legume Bio-Resource Center of Green Manure, Kongju National University) Corresponding Author