Male Gametophyte Development
Male Gametophyte Development
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DOI：
10.1007/978-3-642-02301-9_12
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
D. Twell
中科院分区：
文献类型：
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作者：
D. Twell
在种子植物中，高度减少的单倍体配子体世代在植物生活史中占据了一个短暂但重要的阶段。开花植物的雄配子体是高度特化的两细胞或三细胞花粉粒，其在受精时培育并将双雄配子或精细胞递送给雌配子。这种功能的专门化是高度发达的，是显花植物进化成功的关键创新。从单细胞小孢子的形成到花粉脱落，综述了花粉发育的分子细胞学过程。主要通过两种互补的方法取得了重大进展：配子体突变体的分析，并在基因组技术的应用，以揭示在雄配子体发育过程中的单倍体转录组的复杂性和调节。
The highly reduced haploid gametophyte generation in seed plants occupies a short but vital phase in the plant life cycle. The male gametophytes of flowering plants are highly specialized two- or three-celled pollen grains that nurture and deliver twin male gametes or sperm cells to the female gametes at fertilisation. This functional specialization is highly developed and a key innovation in the evolutionary success of flowering plants. Recent progress in understanding the molecular cellular processes during pollen development is reviewed from the formation of unicellular microspores to the point of pollen shed. Substantial advances have been achieved principally through two complementary approaches: the analysis of gametophytic mutants, and in the application of genomic technologies to uncover the complexity and regulation of the haploid transcriptome during male gametophyte development.