The analysis of the development of reproductive (male and female) organs

为了分析植物的生殖系统，我们对性器官发育的分析进行了研究，首先以大麻和地钱为实验材料，研究了性染色体的DNA结构和功能。在此基础上，研究了单子叶植物和双子叶植物花器官发育的遗传网络、遗传调控和遗传互作。这些分析已扩展到花粉的研究。花粉研究包括雄性不育的遗传调控、花粉成熟基因、未成熟花粉的脱分化等方面，为实现总体研究计划，收集了相关研究成果并进行了相互回顾。本研究的主要内容如下：1）对与花序发育有关的PDF 1基因进行了深入分析; 2）对dadl和mam基因进行了分析。本研究分析了花粉的耐旱性及其对花粉管生长的指导作用。3）水稻发育突变体的研究。突变体对穗的形状、花分生组织、4）大麻Y染色体具有特殊的序列，富含反转录转座子; 5）对芸苔属植物花粉特异性Ca ~（++）结合蛋白和花粉表面蛋白基因进行了分析; 6）对大麻雄性不育基因进行了分析; 7）研究了大麻Y染色体的结构和功能。对烟草花粉脱分化过程中表达的基因进行了广泛的研究; 8）对地钱Y染色体进行了广泛的分析，表明该区域具有重复DNA区域; 9）对cetromere蛋白和组蛋白样蛋白的lilly基因进行了分析; 10）对减数分裂的功能进行了研究。百合花粉母细胞中特异的LIM基因已被研究和推测。

We have studied the analyses of the development of sex-organes in order to analyze the reproductive systems of plants.At first, DNA structures and functions of sex-chromosomes have been studies in hemp and liverworts as experimental materials. And then, genetic networks, regulations and interactions have been studied for the development of floral organes in monocots and dicots. The analyses have been extended to the study of pollens. The research in pollens included the genetic regulation of male-sterility, the pollen-maturation-genes, and de-differentiation of immature pollens.In order to carry out the overall research project, individual research was collected and reviewed with each other. Thus, the project was developed as a whole.Individual studies were summaried as follows.1) The PDF1 gene responsible for the development of inflorescences has been analysed thoroughly.2) The dadl and mam genes have been analyzed. This study analyzed the drought tolerance of pollens and the guidance of pollen-tube-growth.3) The developmental mutants in rice have been studies. The mutants are responsible for the shape of ear, floral meristem, and regulation of the number of organes.4) Y-chomosome in hemp is special sequence and is rich with retrotransposons.5) The Brassica genes have been analyzed for pollen-specific Ca++-binding proteins and surface proteins of pollens.6) The genes responsible for the male-sterility have been analyzed in beats.7) Extensive study of expressed genes has been performed during the de-differentiation of tobacco pollens.8) The Y-choromosome in liverworts has been extensively analyzed and shown that this region has repetitive DNA regions.9) The lilly genes for cetromere-proteins and histone-like proteins have been analyzed.10) The functions of meiosis-specific LIM genes in pollen-mother-cells of lilly have been studied and speculated.