2009 Fiscal Year Final Research Report
Quantitative trait loci controlling leaf morphological characteristics in lettuce
| Project/Area Number |
20780017
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | The University of Tokyo |
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Principal Investigator |
LEE Onew The University of Tokyo, 大学院・農学生命科学研究科, 助教 (10447360)
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| Project Period (FY) |
2008 – 2009
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| Keywords | レタス / QTL解析 / 結球 / 葉形 / 葉色 |
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| Research Abstract |
The cultivated lettuce (Lactuca sativa) are classified based on morphological characteristics such as head formation, leaf margin and leaf length/width ratio, which affect the market price of product and are quantitative traits with continuous phenotypic ranges. F5 population was derived from a cross between two cultivars,'Chimasanchu'(green stem lettuce) and'Redfire'(red leaf lettuce) was used to QTL analysis. In LG1, the QTL for leaf angle co-located with QTLs for leaf length, midrib width and leaf length/width ratio, while in LG8, the QTL for leaf length was co-located with a leaf length/width ratio QTL. This may represent the pleiotropic effects of a single gene or cluster of genes regulates these traits.
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