中文摘要：

Oryza sativa 和 O。latifolia 分别地属于 Oryza 的 AA 和 CCDD 染色体。在这研究，这些的种间的混血儿种类用胚胎营救技术被获得。混合圆锥花序特点例如长芒，小谷物，一般人所能理解的大紫色耻辱，谷物粉碎和驱散的圆锥花序，类似于父亲的父母，的 O。latifolia 而在是的如此的方面有明显的杂种优势，种高度，到 ering 能力和植物的活力为止。染色体配对和混血儿的 genomic 部件随后在 situ 杂交(GISH ) 用 genomic 被调查并且在 situ 杂交(鱼) 荧光灯分析。基于调查的根尖端的有丝分裂的中期染色体数字，混血儿是一与 36 个染色体三倍性。混血儿的 genomic 体质是 ACD。在 meiotic 中期，我混合花粉溺爱房间，差的染色体配对被识别，大多数染色体是一价的，它在混血儿导致了完全的男绝育。

英文摘要：

Oryza sativa and O. latifolia belong to the AA and CCDD genomes of Oryza, respectively. In this study, interspecific hybrids of these species were obtained using the embryo rescue technique. Hybrid panicle traits, such as long awns, small grain, exoteric large purple stigma, grain shattering and dispersed panicles, resemble that of the paternal parent, O. latifolia, whereas there is obvious heterosis in such respects as plant height, tillering ability and vegetative vigor. Chromosome pairing and the genomic components of the hybrid were subsequently investigated using genomic in situ hybridization （GISH） and fluorescent in situ hybridization （FISH） analysis. Based on the mitotic metaphase chromosome numbers of the root tips investigated, the hybrid is a triploid with 36 chromosomes. The genomic constitution of the hybrid is ACD. In the meiotic metaphase Ⅰ of the hybrid pollen mother cell, poor chromosome pairing was identified and most of the chromosomes were univalent, which resulted in complete male sterility in the hybrid.