2012 Fiscal Year Final Research Report
Molecular cytogenetic analyses on crossing barrier between common wheat and its alien species of Triticeae
| Project/Area Number |
22380004
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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 |
Breeding science
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| Research Institution | Chiba University |
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Principal Investigator |
KOBA Takato 千葉大学, 大学院・園芸学研究科, 教授 (40170302)
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| Co-Investigator(Kenkyū-buntansha) |
SASSA Hidenori 千葉大学, 大学院・園芸学研究科, 准教授 (50295507)
KIKUCHI Shinji 千葉大学, 大学院・園芸学研究科, 助教 (80457168)
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| Research Collaborator |
MISHINA Kouhei 横浜市立大学, 木原生物学研究所, 研究員
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| Project Period (FY) |
2010 – 2012
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| Keywords | パンコムギ / 交雑親和性 / QTL 解析 / 染色体置換系統 / 組換え近交系統 / 分子マーカー / 花粉管伸長 / 共焦点レーザー顕微鏡 |
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| Research Abstract |
QTL analysis on the crossability of common wheat with rye using recombinant inbred lines (RILs) developed from inter-varietal chromosome substitution lines clarified that the gene for crossability was located on the short arm of common wheat. Observation of pollen tube elongation of rye pollen on the common wheat pistils showed high correlation between pollen tube elongation and the degrees of crossabilty. These facts show that Skr gene located on the short arm of chromosome 5B inhibits pollen elongation in the styles of common wheat.
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