Year: 2025
Type: preprint
Abstract: For sexually reproducing organisms to pass on their genetic information, progeny must successfully establish. Various life history strategies have evolved, using either dispersal of large numbers of progeny or intensive nurturing of a few. Most plants use the former strategy, but ferns generate a single embryo in the exact same location as the mother, and it is unknown how progeny success is promoted, or how embryogenesis is adapted. By studying Ceratopteris richardii embryogenesis, we find that maternal tissues guide orientation of the early embryo body axis, thus aligning its root pole towards the homologous maternal rhizoids. We find that axis polarity inheritance is mediated by maternal tissue mechanical patterns, and thus identify a robust mechanism for progeny establishment as a nurturing strategy in plants.
Language: English
Topic: Fern and Epiphyte Biology
Domain: Life Sciences
Open Access status: green
Funders: Norges Teknisk-Naturvitenskapelige Universitet, Japan Advanced Plant Science Network, University of Oxford, National Natural Science Foundation of China, Universiteit Utrecht, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Norges Forskningsråd, Toray Science Foundation, Japan Society for the Promotion of Science, Japan Science and Technology Agency, Wageningen University and Research, Core Research for Evolutional Science and Technology, HORIZON EUROPE European Research Council
Awards: 受精卵の細胞動態の系統横断比較により植物発生の共通原理と多様性を解明する, G2521286739, Analysis of the ancestral function of the plant hormone KL as a regulator of vegetative reproduction using hornworts, G3406387141, G3719342530, Key-Molecule-Network in Plant Reproduction, G4204401597, The mechanics of a stressful lifestyle: Deciphering the plant mechanostat, G63415290, 生命情報の低次元化を起点とする多階層モデル駆動型研究戦略の創出, G6718509927, DISCOVERING HOW PLANTS SENSE WATER STRESS
OpenAlex ID: W4413883289