Investigation of novel pollen tube guidance factors and analysis of functional diversity of guidance factors

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K06706
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 44030:Plant molecular biology and physiology-related
• Research Institution: Nagoya University
• Principal Investigator: Kanaoka Masahiro 名古屋大学, 理学研究科, 講師 (10467277)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 植物有性生殖 / 花粉管ガイダンス / 受精

Outline of Final Research Achievements

To maintain species, it is important for organisms to recognize gametophytes from same species for fertilization. In this research, I have investigated the following topics which are based on my previous research about pollen tube guidance in Torenia and Arabidopsis. (1) I have established in vitro pollen tube guidance assay system in tomato and Solanaceae species. (2) I have analyzed the function of female gametophyte- specific genes in tomato. (3) I have revealed functionally important (and not important) sequences in Torenia LURE proteins.

Free Research Field

植物分子生物学

Academic Significance and Societal Importance of the Research Achievements

本研究により初めて、トマトにおいて培地上で花粉管が胚珠内へと誘引される系を作成することができた。これはナス科植物を用いて人工的に異種間交配などをするための基盤となると期待される。また、受精過程において発現する複数の遺伝子の機能を解析できたことにより、植物有性生殖について基礎的な知見が深まったと言える。