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Molecular Plant Advance Access originally published online on October 3, 2008
Molecular Plant 2008 1(6):888-898; doi:10.1093/mp/ssn060
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© The Author 2008. Published by the Molecular Plant Shanghai Editorial Office in association with Oxford University Press on behalf of CSPP and IPPE, SIBS, CAS.

Arabidopsis Mutants and the Network of Microtubule-Associated Functions

Henrik Buschmann1 and Clive W. Lloyd

Department of Cell and Developmental Biology, John Innes Centre, 1 Colney Lane, Norwich NR4 7UH, UK

1 To whom correspondence should be addressed. E-mail Henrik.Buschmann{at}bbsrc.ac.uk, fax 0044 1603 450022, tel. 0044 1603 450135.

In early eukaryotes, the microtubule system was engaged in mitosis, intracellular transport, and flagellum-based motility. In the plant lineage, the evolution of a multicellular body involved the conservation of some core functions, the loss of others, and the elaboration of new microtubule functions associated with the multicellular plant habit. This diversification is reflected by the presence of both conserved (animal/fungi-like) and novel (plant-like) sequences encoding microtubule-related functions in the Arabidopsis genome. The collection of microtubule mutants has grown rapidly over recent years. These mutants present a wide range of phenotypes, consistent with the hypothesis of a functional diversification of the microtubule system. In this review, we focus on mutant analysis and, in particular, discuss double mutant analysis as a valuable tool for pinpointing pathways of gene function. A future challenge will be to define the complete network of genetic and physical interactions of microtubule function in plants. In addition to reviewing recent progress in the functional analysis of the ‘MAPome’, we present an online database of Arabidopsis mutants impaired in microtubule functions.

Key Words: cell division • cell morphogenesis • cytoskeleton • genetics • development • Arabidopsis


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[Abstract] [Full Text] [PDF]


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