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Asymmetric cell division and cell fate in plants |
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| Authors: | Kimberly Gallagher Laurie G Smith |
| Institution: | Curriculum in Genetics and Molecular Biology and Department of Biology, CB#3280, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA |
| Abstract: | A variety of approaches has recently been employed to investigate how sister cells adopt distinct fates following asymmetric divisions during plant development. Surgical and drug studies have been used to analyze asymmetric divisions during both early embryogenesis in brown algae and pollen development in tobacco. Genetic screens have been used to identify genes in Arabidopsis thaliana that are required for specific asymmetric cell divisions during pollen and root development. These studies indicate that cell polarity and division orientation are closely tied to the process of cell fate specification, and suggest that differential inheritance of determinants and positional information may both be involved in the specification of cell fates following asymmetric cell division. |
| Keywords: | Abbreviations: ARM active repression model CEP cortex—endodermis progenitor GC generative cell GCR GC repressor GF gametophytic factor PMI pollen mitosis I PRM passive repression model scpsidecar pollen scrscarecrow shrshortroot VC vegetative cell |
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