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2017 Fiscal Year Final Research Report

Identification and analysis of a novel master transcription factor for sexual organ development in lant plants

Research Project

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Project/Area Number 15K07104
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionKyoto University

Principal Investigator

Yamaoka Shohei  京都大学, 生命科学研究科, 助教 (00378770)

Research Collaborator KOHCHI Takayuki  京都大学, 大学院生命科学研究科, 教授 (40202056)
NISHIHAMA Ryuichi  京都大学, 大学院生命科学研究科, 准教授 (70283455)
YAMATO Katsuyuki T.  近畿大学, 生物理工学部, 教授 (50293915)
ISHIZAKI Kimitsune  神戸大学, 理学研究科, 准教授 (00452293)
SHIGENOBU Shuji  基礎生物学研究所, 生物機能解析センター, 特任准教授 (30399555)
YAMAGUCHI Katsushi  基礎生物学研究所, 生物機能解析センター, 技術職員
YOSHITAKE Yoshihiro  京都大学, 大学院生命科学研究科, 特定助教
INOUE Keisuke  京都大学, 大学院生命科学研究科, 助教 (20805931)
ISHIDA Sakiko  京都大学, 大学院生命科学研究科
SAITO Misaki  京都大学, 大学院生命科学研究科
OKAHASHI Keitaro  京都大学, 大学院生命科学研究科
BAO Haonan  京都大学, 大学院生命科学研究科
NISHIDA Hiroyuki  京都大学, 大学院生命科学研究科
Project Period (FY) 2015-04-01 – 2018-03-31
Keywords生殖細胞 / 発生・分化 / 転写因子 / 陸上植物 / ゼニゴケ
Outline of Final Research Achievements

Here we identified a master transcription factor MpBONOBO (MpBNB) that controls sexual organ development in the liverwort Marchantia polymorpha. MpBNB is expressed in the initial cells that are destined to develop into archegonia and antheridia, suggesting its major role in archegonial/antheridial development. Phylogenetic analysis suggested that MpBNB is a member of an evolutionarily conserved transcription factor family. Arabidopsis BNB1 and BNB2 are redundantly required for specification of generative cell in developing pollen, and are functionally replaceable with MpBNB. These findings suggest evolutionarily conserved role of BNB family proteins in the regulation of germ cell differentiation from gametophytes in land plants.

Free Research Field

植物分子細胞生物学

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Published: 2019-03-29  

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