Parental effects on embryogenesis of Arabidopsis thaliana

2015 Fiscal Year Final Research Report

• Project/Area Number: 25650100
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: FURUTANI MASAHIKO 奈良先端科学技術大学院大学, バイオサイエンス研究科, 准教授 (10432593)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 植物胚発生 / 配偶子効果 / 卵細胞 / 受精卵

Outline of Final Research Achievements

I analyzed the function of the paternal-effect gene SSP1 and maternal-effect gene AtMAGO in apical-basal axis formation of Arabidopsis embryo to uncover the molecular mechanisms of parental effects on plant embryogenesis. I found that AtMAGO is required for the proper polarized-localization of SSP1 in the zygote and that AtMAGO is also involved in SSP1-driven MAPKKK signaling cascade. Besides, RNA-binding protein AtMAGO was localized in the periphery of egg cell with polarity, suggesting apical-basal axis formation in early embryogenesis via polar-localized SSP1 mRNA.

Free Research Field

植物発生学