2017 Fiscal Year Final Research Report
Wheat polyploidization: the genetic basis of F1 hybrid genome doubling through union of 2n gametes
| Project/Area Number |
15H04439
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Science in genetics and breeding
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| Research Institution | Fukui Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 倍数化 / 2n配偶子 |
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| Outline of Final Research Achievements |
To better understand the genetic basis of “F1 hybrid genome doubling through union of 2n gametes”, an important early step in the process of plant allopolyploid speciation, a quantitative trait locus (QTL) analysis was done using triploid F1 hybrids that were produced by artificial cross between the diploid and tetraploid progenitors of bread wheat (Triticum aestivum L. subsp. aestivum). As the result, 11 QTLs were found. Comparative observations of the pollen mother cells suggested that at least some of those QTLs might be involved in the process of 2n gamete formation in the triploid F1 hybrids.
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| Free Research Field |
植物遺伝学
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