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Collected from Chinese mainland, 25 samples of Toona sinensis seed were planted in a standard garden. Three years later, samples were analyzed with random amplified polymorphic DNA (RAPD) and isoenzymes variants of cytochrome oxidase and peroxidases. Results of RAPD and isoenzymes variants were analyzed with software POPGENE32 and SPSS10.0 respectively. Phylogenetic trees were calculated from the clustered result of RAPD and isoenzymes variants. Such additional factors as leaves color, latitude and altitude of original seeds were analyzed at the same time. Our result suggested that a general similarity is concurred with the three analyses as RAPD, isoenzymes variants analysis of peroxidases and cytochrome oxidase. Two clusters can be separated from the sample collected as southern and northern ones. In the evolutionary history, a migrating route in the direction from West-South to East-North and with sequential differentiation in the direction South-North can be decided if only it is true with the argument that Toona sinensis came from tropic Asia, the border of east-north India and Burma.

Germplasm resources research of Toona sinensis with RAPD and isoenzyme analysis