2006 Fiscal Year Final Research Report Summary
Analysis of molecular basis of pollen wall formation and communication signals of pollen
| Project/Area Number |
16380002
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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 | Tohoku University |
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Principal Investigator |
TORIYAMA Kinya Tohoku University, Graduate School of Agricultural Science, Professor, 大学院農学研究科, 教授 (20183882)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIO Takeshi Tohoku University, Graduate School of Agricultural Science, Professor, 大学院農学研究科, 教授 (30301039)
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| Project Period (FY) |
2004 – 2006
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| Keywords | pollen / signal / exine / pollen coat / self-incompatibility / Arabidopsis / male sterility |
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| Research Abstract |
Using Arabidopsis mutants defective in exine or pollen coat formation as well as using Brassica species showing self-incompatibility and interspecific incompatibility, we are planning to identify genes involved in exine and pollen coat formation and signals for pollen dehydration, interaction between pollen and stigmas such as self-incompatibility and interspecific incompatibility.
Our study have demonstrated that formation of primexine, that is a scaffold of exine, and bacula, that is a column of exine, is sporophytically regulated. We have published several original papers and reviews, one of which an invited review in International Journal of Plant Developmental Biology. We report that pollen exine pattern formation is dependent on three major developmental processes, sporopollenin synthesis, primexine formation and callose formation, in Arabidopsis thaliana. We also reports application aspects for plant Breeding in a Japanese journal, Breeding Research.
As for the interaction between pollen and stigma, we demonstrated that region III and IV is important for recognition specificity of SP11, which is a pollen determinant of self-incompatibility. We also found that interspecific incompatibility is a quantitative trait and, therefore, developed original DNA markers for QTL analysis. We are ready for mapping of this trait.
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[Journal Article] The HKM gene, which is identical to the MS1 gene of Arabidopsis thaliana, is essential for primexine formation and exine pattern formation.2005
Author(s)
Ariizumi T, Hatakeyama K, Hinata K, Sato, S, Kato, T, Tabata S, Toriyama K
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Journal Title
Sex. Plant Reprod. 18
Pages: 1-7
Description
「研究成果報告書概要(和文)」より
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[Journal Article] The HKM gene, which is identical to the MS1 gene of Arabidopsis thaliana, is essential for primexine formation and exine pattern formation.2005
Author(s)
Ariizumi T, Hatakeyama K, Hinata K, Sato, S, Kato, T, Tabata S, Toriyama K
-
Journal Title
Sex.Plant Reprod. 18
Pages: 1-7
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Disruption of the novel plant protein, NEF1, affects lipid accumulation in the plastids of the tapetum and exine formation of pollen resulting in male sterility in Arabidonsis thaliana.2004
Author(s)
Ariizumi T, Hatakeyama K, Hinata K, Inatsugi R, Nishida I, Sato S, Kato T, Tabata S, Toriyama K
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Journal Title
Plant J. 39
Pages: 170-181
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Disruption of the novel plant protein, NEF1, affects lipid accumulation in the plastids of the tapetum and exine formation of pollen resulting in male sterility in Arabidopsis thaliana.2004
Author(s)
Ariizumi T, Hatakeyama K, Hinata K, Inatsugi R, Nishida I, Sato S, Kato T, Tabata S, Toriyama K
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Journal Title
Plant J. 39
Pages: 170-181
Description
「研究成果報告書概要(欧文)」より
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