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Type: Journal article
Title: Establishing a framework for female germline initiation in the plant ovule
Author: Lora, J.
Yang, X.
Tucker, M.R.
Citation: Journal of experimental botany, 2019; 70(11):2937-2949
Publisher: Oxford University Press
Issue Date: 2019
ISSN: 0022-0957
Statement of
Jorge Lora, Xiujuan Yang, Mathew R Tucker
Abstract: Female gametogenesis in flowering plants initiates in the ovule, where a single germline progenitor differentiates from a pool of somatic cells. Germline initiation is a fundamental prerequisite for seed development but is poorly understood at the molecular level due to the location of the cells deep within the flower. Studies in Arabidopsis have shown that regulators of germline development include transcription factors such as NOZZLE/SPOROCYTELESS and WUSCHEL, components of the RNA-dependent DNA methylation pathway such as ARGONAUTE9 and RNA-DEPENDENT RNA POLYMERASE 6, and phytohormones such as auxin and cytokinin. These factors accumulate in a range of cell types from where they establish an environment to support germline differentiation. Recent studies provide fresh insight into the transition from somatic to germline identity, linking chromatin regulators, cell cycle genes, and novel mobile signals, capitalizing on cell type-specific methodologies in both dicot and monocot models. These findings are providing unique molecular and compositional insight into the mechanistic basis and evolutionary conservation of female germline development in plants.
Keywords: Arabidopsis; differentiation; epigenetics; expansion; germline; megasporogenesis; ovule
Rights: © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved.
RMID: 0030114112
DOI: 10.1093/jxb/erz212
Grant ID:
Appears in Collections:Agriculture, Food and Wine publications

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