Pre-Meiotic Anther Development: Cell Fate Specification and Differentiation

Research into anther ontogeny has been an active and developing field, transitioning from a strictly lineage-based view of cellular differentiation events to a more complex understanding of cell fate specification. Here we describe the modern interpretation of pre-meiotic anther development, from th...

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Bibliographic Details
Published in:Annual review of plant biology 2016-04, Vol.67 (1), p.365-395
Main Authors: Walbot, Virginia, Egger, Rachel L
Format: Article
Language:English
Subjects:
archesporial cell
Cell Differentiation
Cellular biology
Developmental stages
Epidermis
Flowers - physiology
Gene Expression Profiling
lineage
Meiosis
MicroRNAs
Organogenesis, Plant
parietal cell
periclinal division
Plant biology
Plant Cells - physiology
Plant reproduction
Plants - genetics
Proteomics
RNA, Small Interfering
transcriptome
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Summary:Research into anther ontogeny has been an active and developing field, transitioning from a strictly lineage-based view of cellular differentiation events to a more complex understanding of cell fate specification. Here we describe the modern interpretation of pre-meiotic anther development, from the earliest cell specifications within the anther lobes through SPL NZZ -, MSP1 -, and MEL1 -dependent pathways as well as the initial setup of the abaxial and adaxial axes and outgrowth of the anther lobes. We then continue with a look at the known information regarding further differentiation of the somatic layers of the anther (the epidermis, endothecium, middle layer, and tapetum), with an emphasis on male-sterile mutants identified as defective in somatic cell specification. We also describe the differences in developmental stages among species and use this information to discuss molecular studies that have analyzed transcriptome, proteome, and small-RNA information in the anther.
ISSN:1543-5008
1545-2123
DOI:10.1146/annurev-arplant-043015-111804