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多回刈り栽培用飼料イネの育成に向けたイネの資源配分様式を制御する遺伝機構の解明

阐明控制水稻资源配置模式的遗传机制用于连作饲料稻的种植

基本信息

批准号：
21780242
负责人：
秋本正博
金额：
$ 2.25万
依托单位：
Obihiro University of Agriculture and Veterinary Medicine
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2009
资助国家：
日本
起止时间：
2009 至 2011
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21780242/
关键词：
資源配分様式再生力飼料イネ撹乱

项目摘要

研究代表者はLolium属植物を用いた研究で、植物の再生力が植物体における栄養器官への資源配分率と高い相関性を示すことを明らかにした。これを受け、本研究では植物の再生力を支配する遺伝機構の解明を目的に、イネ品種を用い植物体の資源配分様式を指標とした解析を行った。生殖器官への資源配分率が高いジャポニカ品種「しおかり」と栄養器官への資源配分率が高いインディカ品種「TepaI」のF3集団を用い、系統間の再生力(ひこ生え量)と資源配分様式との関係を調査した。しかしながら、集団内に低稔実系統が多数出現したため、資源配分様式の評価に支障が生じてしまった。そこで、現在世代を更新したF4集団、および同2品種を用いた戻し交雑集団をそれぞれ育成し、新たに解析を開始している。イネ8品種を用い、撹乱環境下における資源配分様式の変化とそれに伴うひこ生え量の変化を調査した。その結果、供試した品種内には、移植時に根の4/5を切除する撹乱を与えるごとで、その後の生長において栄養器官への資源配分率が高まる品種群と生殖器官に対する資源配分率が高まる品種群が存在することを見出した。なお、前者の品種群は撹乱を受けることにより、通常生育時よりひこ生え量が増加する傾向を示した。前者の品種群に含まれる「しおかり」と後者の品種群に含まれる「戦捷」を交配しF1個体を育成したところ、高い稔実性を示した。そこで、現在この個体よりF2集団を育成し、撹乱環境下における個体の資源配分様式の変化とひこ生え量との関係を調査している。

Representative of the research, Lolium plants are used in the study of plant regeneration and plant regeneration. The high distribution rate of organs and resources in plants shows that there are significant differences in the distribution of resources in plants. In this study, the plant regeneration capacity dominates the interpretation of plant resources distribution patterns for the purpose and variety of plant species. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. The distribution rate of reproductive organ resources is very high. In most of the low-risk systems in the county and in the cluster, most of them have health problems and resource distribution types, such as poor health care systems. In the current generation, the F4 collection will be updated, the F4 collection will be completed, and the analysis of the new product will begin. In the case of 8 varieties of agricultural products for use and in a chaotic environment, the distribution of agricultural resources is based on the distribution of agricultural resources, and the production of agricultural products is adjusted to meet the demand. The results of the test, the results of the test results, the results of the test, the The species groups of the former and the former are indiscriminately affected by the birth rate, which is usually indicated by the increase in the number of babies when they give birth. The former breed group contains mating mating F _ 1 and the high fertility trait is very high. At present, the private sector F2 collection has been developed, and the distribution of individual resources in the chaotic environment has been developed, and the number of students has been reduced.