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In this paper, RAPD technology from the perspective of molecular glass Gypsophila in vitro analysis of the phenomenon, from the normal Miao Miao and glass fingerprints can be seen (Figure 2), glass in 1500bp Miao Miao Department, more than normal, the a specific band, you can confirm the genetic material DNA has changed. So, once in vitro into a glass Miao, part of the base on the changes can not be back to normal. Compared with RAPD markers, SCAR markers have the following characteristics: 1, using a pair of complementary to the genome-specific sites and long-primer PCR and strict conditions, have been reliably with repeatable, which is not sensitive to the reaction conditions; 2 , for the purposes of building a genetic map of the SCAR markers codominant than dominant RAPD markers much more information; 3, SCAR fragment itself is based on PCR technology marker (PCR-based marker), could serve as a physical map and genetic sentinel anchor map, map-based cloning of the overlap of high practical value, as marked as anchor sentinel or directly to do step-by-step search chromosome (chromosome walking) genetic region.

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