2012 Fiscal Year Final Research Report
Exploitation of recombination-enhancing factors for enhancement of breeding efficiency
| Project/Area Number |
22658003
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Breeding science
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| Research Institution | Tottori University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 減数分裂 / 組換え / 染色体 / コムギ / 異種染色体添加系統 |
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| Research Abstract |
Breeding efficiency will be increased if the factors promoting meiotic recombination will be discovered. However, because homologous chromosomes cannot be discriminated usually, there are no experimental systems to detect it. In this study, we produced wheat lines carrying two alien chromosomes each of which are derived from different species, and found lines in which two alien chromosomesassociated in the meiotic prophase. In addition, we found that zebularine induced chromosome rearrangements in mitosis and affected slightly the meiotic chromosome pairing. In addition, we tried to introduce ph1b gene to the alien chromosome addition lines.
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