Molecular genetic analyses of microsporogenesis and microgametogenesis in flowering plants.
Molecular genetic analyses of microsporogenesis and microgametogenesis in flowering plants.
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DOI：
10.1146/annurev.arplant.55.031903.141717
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发表时间：
2005-01-01
影响因子：
23.9
通讯作者：
Ma, Hong
中科院分区：
文献类型：
--
作者：
Ma, Hong
在开花植物中，雄性生殖发育需要雄蕊的形成，包括花药组织的分化。在花药内，雄性减数分裂产生小孢子，小孢子进一步发育成花粉粒，这依赖于孢子体和配子体基因的功能。成熟的花粉在花药开裂时释放出来，允许授粉发生。分子生物学研究已经发现了大量在雄蕊和花粉发育过程中表达的基因。遗传分析表明，其中一些基因在指定雄蕊身份，调节花药细胞分裂和分化，控制雄性减数分裂，支持花粉发育，促进花药开裂的功能。这些基因编码多种蛋白质，包括转录调节因子、信号转导蛋白、蛋白质降解调节因子和用于激素生物合成的酶。虽然近几十年来已经学到了很多，但还有更多的东西有待发现和理解;植物雄性生殖研究的未来仍然是光明和令人兴奋的，不断增长的工具包和迅速扩大的信息和资源用于基因功能研究。
In flowering plants, male reproductive development requires the formation of the stamen, including the differentiation of anther tissues. Within the anther, male meiosis produces microspores, which further develop into pollen grains, relying on both sporophytic and gametophytic gene functions. The mature pollen is released when the anther dehisces, allowing pollination to occur. Molecular studies have identified a large number of genes that are expressed during stamen and pollen development. Genetic analyses have demonstrated the function of some of these genes in specifying stamen identity, regulating anther cell division and differentiation, controlling male meiosis, supporting pollen development, and promoting anther dehiscence. These genes encode a variety of proteins, including transcriptional regulators, signal transduction proteins, regulators of protein degradation, and enzymes for the biosynthesis of hormones. Although much has been learned in recent decades, much more awaits to be discovered and understood; the future of the study of plant male reproduction remains bright and exciting with the ever-growing tool kits and rapidly expanding information and resources for gene function studies.