2010 Fiscal Year Final Research Report
Studies on genetic mechanisms controlling expression of the monoecious character in spinach
| Project/Area Number |
20580001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Breeding science
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| Research Institution | Hokkaido University |
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Principal Investigator |
ONODERA Yasuyuki Hokkaido University, 大学院・農学研究院, 助教 (80374619)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 雌雄性 |
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| Research Abstract |
Spinach is generally considered as a dioecious species, while monoecious individuals with both sex functions can be found in certain varieties and lines. We showed that a single, incompletely dominant gene is responsible for the monoecious character. The gene was found to be located at a distance of 4.3cM from microsatellite marker SO4, which mapped 1.6cM from X/Y controlling sexual dimorphism in dioecious lines. This indicates that the monoecious gene is allelic to or closely linked to the X/Y gene pair.
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