XVI International Botanical Congess
Nuclear DNA and mitochondrial DNA diversities in Pinus parviflora were studied in 16 populations in Japan, by means of 11 allozyme loci and RFLPs of two gene probes for the time being. Intrapopulation diversity of nuclear DNA was roughly equal to other woody species, population differentiation was very low level. The extent of genetic differentiation between two varieties was also extremely low. Although intrapopulation diversity of mtDNA was very low level, population differentiation was held pretty large level. Any population retains multiple haplotypes of the two varieties has not been observed yet. The difference between nuclear and mt DNAs might be caused by the mode of inheritance of each genome.