Abstract

Ten universal primer pairs of chloroplast genome were used to amplify non-coding regions of chloroplast DNA (cpDNA) in 7 Diospyros L. species including 29 genotypes and approximately 20.4 kb, 12.6% of the chloroplast genome were analyzed. The amplified products were digested by seven restriction enzymes. The results showed that there were abundant polymorphisms in inter-specific cpDNA within the genus Diospyros. However, it was not observed intra-species variations in 22 tested genotypes of Diospyros kaki (Japanese persimmon), except for ‘Male strain No. 9’. Persimmon had close relationship with Diospyros lotus and Diospyros glaucifolia, but distantly with Diospyros virginiana and Diospyros rhombifolia in diagram based on principal coordinates analysis and Wagner parsimony method. The discrepancy of digesting pattern in cpDNA suggested that the genotype Jinzaoshi was distinct with the remaining Diospyros spp., which revealed that Jinzaoshi may be a new species of the genus Diospyros.

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