Publications by authors named "Takafumi Ohsawa"

Article Synopsis
  • - The study investigates genetic diversity and structure in three oak species in central Japan, focusing on the potential for speciation with gene flow, particularly in the semi-endemic Quercus mongolica var. mongolicoides (QM) and other common species.
  • - Using an approximate Bayesian computation approach, researchers analyzed population size changes and migration history, revealing distinct genetic structures among the three oaks but notable genetic admixture, especially between QM and Q. mongolica var. crispula (QC).
  • - Findings suggest that QM and QC are in an early speciation stage with ongoing gene flow, whereas Q. mongolica var. crispula (QC) and Q. serrata (QS) have already undergone more established spec
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Previous studies have reached different discussions about the genetic variation and genetic structure of Quercus crispula populations in northeastern Japan. This is a common oak species in Eastern Asia. Some studies have suggested that the populations in northeastern Japan were derived from those remaining in the southwest after the last glacial maximum (LGM), whilst other studies have found evidence that populations persisted in northeastern Japan during the LGM.

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