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The Gene Encoding Flavanone 3-Hydroxylase is Expressed Normally in the Pale Yellow Flowers of the Japanese Morning Glory Carrying the speckled Mutation Which Produce Neither Flavonol nor Anthocyanin but Accumulate Chalcone, Aurone and Flavanone |
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| Authors: | Hoshino, Atsushi Abe, Yukihide Saito, Norio Inagaki, Yoshishige Iida, Shigeru |
| Affiliation: | 1 Division of Gene Expression and Regulation I, National Institute for Basic Biology Okazaki, 444 Japan 2 Department of Molecular Biomechanics, The Graduate University for Advanced Studies Okazaki, 444 Japan 3 Department of Biological Science and Technology, Science University of Tokyo Noda, 278 Japan 4 College of Economics, Nihon University Chiyoda-ku, Tokyo, 101 Japan 5 Chemical Laboratory, Meiji-gakuin University Totsuka-ku, Yokohama, 244 Japan |
| Abstract: | The Japanese morning glory carrying the recessive mutable speckledallele with the dominant speckled-activator bears colorlessflowers with fine and round colored spots distributed over thecorolla whereas the plant without the speckled-activator producespale yellow flowers. Previous chemical analysis has indicatedthat a mutation in the gene for flavanone 3-hydroxylase (F3H)is a likely candidate for the speckled allele. However, theF3HmRNA without sequence alteration accumulates normally inthe pale yellow flowers, indicating that the speckled alleleis neither the F3H gene nor a regulatory gene acting on theF3H gene expression. (Received April 4, 1997; Accepted June 2, 1997) |
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