Search for pollen tube attractants in rice

2017 Fiscal Year Final Research Report

• Project/Area Number: 26660004
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Science in genetics and breeding
• Research Institution: The University of Tokyo
• Principal Investigator: Takanashi Hideki 東京大学, 大学院農学生命科学研究科(農学部), 助教 (60707149)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: イネ / 花粉管誘引 / 助細胞

Outline of Final Research Achievements

Researches about pollen tube guidance have not well investigated in rice, and pollen tube attractants are not identified in rice until now. To search pollen tube attractants in rice, I searched rice pollen tube attractants based on detailed gene expression profiles of the rice synergid cell. As a result of careful examination of gene expression profiles, interestingly, LURE genes which had been identified as pollen tube attractants in Torenia and Arabidopsis did not exist in the highly expressed genes of rice synergid cell. On the other hand, a lot of genes encoding unknown secreted proteins were highly expressed in the rice synergid cell, so they seemed to be promising candidates for the pollen tube attractants in rice.

Free Research Field

遺伝育種科学