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© The Author 2008. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org
Editorial |
Towards a Comprehensive Understanding of Molecular Mechanisms of Sexual Reproduction in Higher Plants
Laboratory of Plant Reproductive Genetics, Graduate School of Life Sciences, Tohoku University, Japan
| The first 10% of the full text of this article appears below. |
Sexual reproduction in higher plants includes a key phase for producing male and female gametes (i.e. microsporogenesis, microgametogenesis, megasporogenesis and megagametogenesis), in addition to the ensuing pollination and fertilization. Development of the gametes is regulated by gametophytic and sporophytic gene expression (McCormick 2004
); for example, gametophytic microspores are influenced by gene expression in sporophytic tapetum cells of anthers. Such networks of gene expression during gamete development are quite important for the understanding of sexual reproduction, because failure of gene regulation often results in a defect of fertilization, which is known as male and/or female sterility. To date, many reproductive tissue-specific genes have been identified and characterized (Taylor and Hepler 1997, Endo et al. 2004, Kagi and Gross-Hardt 2007). However, the total picture of gene regulation of events during sexual reproduction is still not clear. This special issue consists of four original articles about transcriptome
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