巴西橡胶树转基因研究现状与展望

由于存在遗传背景狭窄、高度杂合化、育种周期长等特点，巴西橡胶树育种进展非常缓慢。转基因技术为拓展其的遗传范围、加速育种进程提供了契机。在过去20年里，橡胶树转基因研究取得了很大进展：成功应用的转化技术包括基因枪法和农杆菌介导法，受体材料包括花药和内珠被愈伤，育种目标涉及到提高胶乳产量、抗死皮和作为生物反应器等。但同时也存在组培程序不够成熟、转化技术和外植体比较单一、转化效率低下等问题。最后，对以后转化体系的优化、转基因育种方向进行了分析和展望。

Advances and Perspectives on Genetic Modification of Hevea brasiliensis

As the major commercial source of natural rubber,Hevea brasiliensis attracts much attention.However,the heterozygous nature,long breeding cycle are strong limitations for conventional breeding.While genetic engineering,which can be used to widen the germplasm base and produce desirable agronomic traits quickly and efficiently,offers a viable alternative approach to complement traditional breeding.Comprehensive analysis indicates that in the past two decades,with calli derived from immature anther or integum...