Geographical and ecological study of wild rice diverged genomes

2015 Fiscal Year Final Research Report

• Project/Area Number: 25304021
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Science in genetics and breeding
• Research Institution: Hirosaki University
• Principal Investigator: ISHIKAWA RYUJI 弘前大学, 農学生命科学部, 教授 (90202978)
• Co-Investigator(Kenkyū-buntansha): SATO Yo-Ichiro 大学共同利用機関法人 人間文化研究機構, 理事 (20145113) ; NAKAMURA Ikuo 千葉大学, 大学院園芸学研究科, 教授 (50207867) ; ICHITANI Katsuyuki 鹿児島大学, 農学部, 准教授 (10305162)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 野生イネの多様性 / オーストラリア / 種分化 / 進化

Outline of Final Research Achievements

Wild rice is regarded as valuable resources to improve cultivated rice. We identified that Asian species maintains high polymorphism. However, American species also maintains high diversity in maternal lineages. It is due to its evolutionary process. In Thai, even one population keeps enough diversity as Asian core collection. In contrast, Vietnamese wild rice did not show high polymorphism but unique high male sterility due to its mitochondrial genome. Australian populations are composed from distinct species. One of the species could be novel type, reflected by genome sequence and also morphological characteristics.

Free Research Field

作物育種学