Mechanism of low glutelin content in the “glu1” mutant The “ glu1 ” is a gamma-ray-induced rice mutant, which lacks an acidic subunit of glutelin, a major seed storage protein. Morita, et al. [34] elucidated that the glu1 harbors a 129.7 kbp deletion involving two highly similar and tandem repeated glutelin genes, GluB5 and GluB4 . The deletion eliminated the entire GluB5 and GluB4 gene except half of the first exon of GluB5 . As a result, the phenotype of the glu1 gene is a complete lack of the acidic subunit of glutelin and acts as a recessive gene for low glutelin content in rice grains (Fig. 9).
Conclusion The above examples illustrate that the position and the size of deletions in the same loci have the capacity to dramatically alter the phenotype of mutants through the process of transcription and translation. The glu1 , which has a large 129.7 kbp Genetic studies by the useful mutations induced with Gamma-ray chronic irradiation As the history has shown, spontaneous and induced mutation resources have played an important role not only for mutation breeding but also genetic studies and the elucidation of gene functions.
Mechanism of low glutelin content in the “glu1” mutant The “ glu1 ” is a gamma-ray-induced rice mutant, which lacks an acidic subunit of glutelin, a major seed storage protein. Morita, et al. [34] elucidated that the glu1 harbors a 129.7 kbp deletion involving two highly similar and tandem repeated glutelin genes, GluB5 and GluB4 . The deletion eliminated the entire GluB5 and GluB4 gene except half of the first exon of GluB5 . As a result, the phenotype of the glu1 gene is a complete lack of the acidic subunit of glutelin and acts as a recessive gene for low glutelin content in rice grains (Fig. 9). Conclusion The above examples illustrate that the position and the size of deletions in the same loci have the capacity to dramatically alter the phenotype of mutants through the process of transcription and translation. The glu1 , which has a large 129.7 kbp Genetic studies by the useful mutations induced with Gamma-ray chronic irradiation As the history has shown, spontaneous and induced mutation resources have played an important role not only for mutation breeding but also genetic studies and the elucidation of gene functions.
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