水稻与玉米远缘杂交的胚胎学观察(简报)  

EMBRYOLOGICAL OBSERVATION ON THE WIDE CROSS OF RICE AND MAIZE

作　　者：薛晶晶[1,2] 吴绍华[1,2] 徐培洲[1,2] 张红宇[1,2] 吴先军[1,2] 

机构地区：[1]四川农业大学水稻研究所,温江611130 [2]四川农业大学西南作物基因资源与遗传改良教育部重点实验室,雅安625014

出　　处：《分子细胞生物学报》2008年第5期412-416,共5页Journal of Molecular Cell Biology

基　　金：教育部长江学者和创新团队发展计划资助项目(批准号:IRT0453)。

摘　　要：水稻（Oryza sativa L．）是世界上最重要的粮食作物之一．早在上世纪60年代．一些研究者就已经开始利用远缘杂交来创造新的水稻种质资源。远缘杂交可以突破遗传物质仅在种内交流的局限性．使遗传物质得到在种间交流和重组的机会，扩大基因库．从而获得具有经济价值的各种变异类型的优势。目前，已报道的与水稻进行远缘杂交的作物主要有：In this report, we studied the fertilization and embryo development of a cross between rice and maize. The results showed that the pollen grains of maize could enter into the tissue of style of rice, and reached the embryo sac and released the sperms. Maize sperm might fuse with rice egg or polar nucleus and formed zygote or primary endosperm. But the embryo and endosperm could not be developed normally, and thus the underdeveloped hybrid seeds were formed. The reason was probably that the parental genomes could not coordinate well. This work provided a clue to solve the crossing obstacles between different species.

关 键 词：水稻 玉米 杂交 胚胎学观察 

分 类 号：S511[农业科学—作物学]