限制性内切酶片段长度多态性（RFLP）及其在植物育种中的应用

 本文是一篇有关遗传标记的综述论文，探讨了限制性内切酶片段长度多态性（RFLP）及其在植物育种中的作用。首先简述了RFLP技术的理论基础，它可作为遗传标记加以利用，在理论上可运用RFLP进行遗传作图，而在植物育种中潜在的应用价值有：1.鉴别品种及品种专利；2.遗传资源多样性的识别；3.在数量性状研究中的应用；4.外源染色体的鉴别。最后还比较了RFLP、同工酶及RAPD等遗传标记的异同和优、缺点。

RFLP AND ITS APPLICATIONS IN PLANT BREEDING

This article is a review,concerning genetic markers. The RFLP and its applications in plant breeding are discussed.First of all the theoretical basis of RFLP is described.RFLP could be used as genetic marker,and carried out for genetic mapping in theory. There were four potential uses in plant breeding:1)Identification of varieties and patent for varieties;2)Recognition of diversity of genetic resources;3)Application in the investigation of quantitative characteristics and 4)Identification of alien chromosome.Finally,the similarities and differences,merits and demerits between RFLP,isoenzymes and RAPD are compared.