講演詳細

遺伝・育種部門[Forest Genetics and Tree Breeding]

日付	2026年3月18日
開始時刻	ポスター発表
会場名	多目的ホール
講演番号	PF-29
発表題目	Dynamic Gene Expression During Sugi Embryogenesis Dynamic Gene Expression During Sugi Embryogenesis
所属	森林総合研究所
要旨本文	Somatic embryogenesis (SE) plays a critical role in the mass propagation and bioengineering of Cryptomeria japonica (sugi). We observed substantial variation in SE potential among different cell lines, and even within the same cell line, SE potential often declines after repeated subculturing. These limitations hinder large-scale propagation of elite sugi genotypes and constrain genetic engineering applications. However, the genetic mechanisms underlying the regulation of SE potential remain largely unknown. In this study, we surveyed gene expression profiles of multiple cell lines at different developmental stages using transcriptome sequencing. Our results revealed dynamic changes in gene expression across developmental stages, as well as stage-specific signature expression patterns. This analysis provides transcriptomic evidence for elucidating the genetic mechanisms governing SE and offers insights that may facilitate improvements in tissue culture systems for sugi bioengineering.
著者氏名	○Kangquan Yin ・ Momi Tsuruta ・ Tsuyoshi E Maruyama ・ Ryosuke Imai ・ Ayako Izuno ・ Saneyoshi Ueno
著者所属	Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute
キーワード	Somatic embryogenesis, Cryptomeria japonica, Gene regulation
Key word	Somatic embryogenesis, Cryptomeria japonica, Gene regulation