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| Content Provider | Springer Nature Link |
|---|---|
| Author | Osakabe, Keishi Endo, Masaki Kawai, Kiyoshi Nishizawa, Yaeko Abe, Kiyomi Ishikawa, Yuichi Nakamura, Hidemitsu Ichikawa, Hiroaki Nishimura, Shigeo Shimizu, Tsutomu Toki, Seiichi |
| Copyright Year | 2005 |
| Abstract | The proper use of a marker gene in a transformation process is critical for the production of transgenic plants. However, consumer concerns and regulatory requirements raise an objection to the presence of exogenous DNA in transgenic plants, especially antibiotic-resistant genes and promoters derived from viruses. One approach to overcome this problem is the elimination of marker genes from the plant genome by using several site-specific recombination systems. We propose an alternative method to solve this problem using a marker gene exclusively derived from the host plant DNA. We cloned a genomic DNA fragment containing regulatory and coding sequences of acetolactate synthase (ALS) gene from rice, and mutagenized the ALS gene into a herbicide-resistant form. After transfer of this construct to the rice genome, transgenic plants were efficiently selected with a herbicide, bispyribac-sodium salt, which inhibits the activity of wild type ALS. We also analyzed the regulatory feature of the rice ALS gene promoter with the gusA reporter gene and revealed that GUS expression was observed constitutively in aerial parts of rice seedlings and root tips. The marker system consisted exclusively of host plant DNA and enabled efficient selection in a monocot crop plant, rice. The selection system can potentially be applied to generate transgenic plants of other crop species and can be expected to be publicly acceptable. |
| Starting Page | 313 |
| Ending Page | 320 |
| Page Count | 8 |
| File Format | |
| ISSN | 13803743 |
| Journal | Molecular Breeding |
| Volume Number | 16 |
| Issue Number | 4 |
| e-ISSN | 15729788 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2005-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Acetolactate synthase Herbicide resistance Promoter Rice Selection marker Transgenic Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science Molecular Biology Biotechnology Agronomy and Crop Science |
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