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Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/98

Title: A novel class of MYB factors controls sperm cell formation in plants
Authors: Rotman, Nicolas
Durbarry, Anjusha
Wardle, Anthony
Yang, Wei Cai
Chaboud, Annie
Faure, Jean-Emmanuel
Berger, Frédéric
Twell, David
Issue Date: 2005
Publisher: Elsevier
Citation: Current Biology, 2005, 15, pp.244-248
Abstract: In contrast to animals, the plant male germ line is established after meiosis in distinctive haploid structures, termed pollen grains. Germ line arises by a distinct asymmetric division of the meiotic products. The fate of the resulting vegetative and generative cells are distinct. In contrast to the larger vegetative cell arrested in the G1 phase of the cell cycle, the smaller generative cell divides once to produce the two male gametes or sperm cells. Sperm cells are delivered to the female gametes by the pollen tube, which develops from the vegetative cell. In spite of recent efforts to understand pollen development the molecular pathway controlling sperm cell ontogenesis is unknown. Here we present the isolation of DUO1, a novel R2R3 MYB gene of Arabidopsis, as the first gene shown to control male gamete formation in plants. DUO1 is specifically expressed in the male germ line and DUO1 protein accumulates in sperm cell nuclei. Mutations in DUO1 produce a single larger diploid sperm cell unable to perform fertilisation. DUO1 appears to be evolutionarily conserved in several plant species and defines a new subfamily of pollen-specific MYB genes.
DOI Link: 10.1016/j.cub.2005.01.013
ISSN: 0960-9822
eISSN: 1879-0445
Links: http://hdl.handle.net/2381/98
http://www.sciencedirect.com/science/article&(...)
Version: Post print
Status: Peer reviewed
Type: Article
Rights: © 2005 Elsevier Ltd All rights reserved. Deposited with reference to the publisher's archiving policy available on the SHERPA/RoMEO website.
Description: This is the authors' final draft of a paper subsequently published as Current Biology, 2005, 15, pp. 244-248
Appears in Collections:Published Articles, Dept. of Biology

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