Elucidation of the mechanism underlying development and morphogenesis in grass plants and prospects for molecular breeding

2015 Fiscal Year Final Research Report

• Project/Area Number: 23248001
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Breeding science
• Research Institution: The University of Tokyo
• Principal Investigator: Hirano Hiroyuki 東京大学, 理学(系)研究科(研究院), 教授 (00192716)
• Co-Investigator(Renkei-kenkyūsha): KITANO Hidemi 名古屋大学, 大学院農学生命研究科, 教授 (50144184) ; KUMAMARU Toshihiro 九州大学, 農学研究院, 教授 (00284555) ; TAKAMURE Itsuro 北海道大学, 大学院農学研究科, 講師 (90179557)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 発生・形態形成 / 維管束 / 小穂 / 花序 / 腋芽 / TAB1遺伝子 / WOX遺伝子 / イネ

Outline of Final Research Achievements

Morphological characteristics, such as branching pattern in the panicle and the number of flowers, are closely associated with important agronomical traits. We studied about the mechanism underlying the regulation of development and morphogenesis of rice (Oryza sativa), which is suitable for molecular genetic analyses. We mainly focused on the followings: (1) development and morphogenesis of the flower (spikelet) and inflorescence (panicle), (2) formation and maintenance of the meristem, (3) cellular differentiation and morphogenesis of the leaf. One of our main purposes is the identification of new genes that regulate developmental programs in rice. We found more than ten genes and revealed their molecular functions related to above developmental processes.

Free Research Field

植物発生遺伝学