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Biology 2017, 6(1), 6; doi:10.3390/biology6010006

Mitotic Spindle Assembly in Land Plants: Molecules and Mechanisms

Graduate School of Science, Division of Biological Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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Academic Editor: J. Richard McIntosh
Received: 1 October 2016 / Revised: 29 November 2016 / Accepted: 8 January 2017 / Published: 25 January 2017
(This article belongs to the Special Issue Mechanisms of Mitotic Chromosome Segregation)
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Abstract

In textbooks, the mitotic spindles of plants are often described separately from those of animals. How do they differ at the molecular and mechanistic levels? In this chapter, we first outline the process of mitotic spindle assembly in animals and land plants. We next discuss the conservation of spindle assembly factors based on database searches. Searches of >100 animal spindle assembly factors showed that the genes involved in this process are well conserved in plants, with the exception of two major missing elements: centrosomal components and subunits/regulators of the cytoplasmic dynein complex. We then describe the spindle and phragmoplast assembly mechanisms based on the data obtained from robust gene loss-of-function analyses using RNA interference (RNAi) or mutant plants. Finally, we discuss future research prospects of plant spindles. View Full-Text
Keywords: mitosis; kinetochore; centrosome; dynein; kinesin; augmin; gamma-tubulin; Arabidopsis thaliana; Physcomitrella patens; Haemanthus mitosis; kinetochore; centrosome; dynein; kinesin; augmin; gamma-tubulin; Arabidopsis thaliana; Physcomitrella patens; Haemanthus
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yamada, M.; Goshima, G. Mitotic Spindle Assembly in Land Plants: Molecules and Mechanisms. Biology 2017, 6, 6.

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