Image (IMAGE) University of Tsukuba Caption Researchers from the University of Tsukuba have found that Shorea parvifolia, a tropical rainforest tree species widely distributed through Southeast Asia, has had a recent migration to Borneo followed by a population increase. The team’s analyses of the species’ genetic structure revealed that the Borneo populations have a high genetic diversity, indicating a recent population expansion. The study’s results support the use of locally sourced seeds for planting as a tool for maintaining genetic diversity. Credit University of Tsukuba Usage Restrictions Unauthorized use is prohibited License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.