GENETIC ANALYSIS OF FEMALE GAMETOPHYTE DEVELOPMENT IN MAIZE

我们正在利用遗传分析来研究雌配子体 玉米中的包膜。植物的雄配子和雌配子是 由单倍体配子体产生，这些配子体与 二倍体孢子体，植物生活史中的优势阶段 被子植物。减数分裂后，大配子体或胚囊 由少量有丝分裂产生，由四个 不同的细胞--死亡的卵细胞、中央细胞、助细胞和 反足细胞--位于胚囊内特有的位置。 我建议鉴定胚囊突变体的发育缺陷。 利用共聚焦显微镜阐明野生型基因的作用 在大配子体发育过程中。

We are using a genetic analysis to study female gametophyte envelopment in maize. The male and female gametes of plants are produced by haploid gametophytes that alternate generations with the diploid sporophyte, the dominant phase of the plant life cycle in angiosperms. After meoisis, the megagametophyte, or embryo sac, is produced by a small number of mitotic divisions and consists of four distinct cells-die egg cell, the central cell, the synergid cell, and the antipodal cell-in characteristic positions within the embryo sac. I propose to identify the developmental defects in embryo sac mutants using confocal microscopy to elucidate the role of the wild-type genes in megagametophyte development.