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纯度是杂交稻种子质量的一个核心指标,其传统鉴定一般以形态性状为基础。DNA标记为水稻品种鉴别和纯度鉴定提供了一种新的手段,其中,SSR(Si mpl e Sequence Repeat)标记由于具有鉴别能力强、重复性高、检测简便等优点,在杂交稻种子纯度鉴定研究中得到了越来越广泛的应用。不管是人为掺杂验证,还是与田间鉴定比较,以SSR标记为基础的杂交稻纯度鉴定都显示出极高的可靠性。
Purity is a core indicator of hybrid rice seed quality, and its traditional identification is generally based on morphological traits. DNA markers provide a new method for identification and purity identification of rice varieties. Among them, the SSR (Simpl e Sequence Repeat) marker has the advantages of high discrimination, high repeatability and simple detection, Has been more and more widely used. The SSR marker-based purity identification of hybrid rice showed high reliability, both in human-based and in-field assays.