Chance long-distance or human-mediated dispersal? How Acacia s.l. farnesiana attained its pan-tropical distribution
Karen L Bell, Haripriya Rangan, Manuel M Fernandes, Christian A Kull, Daniel J Murphy
Royal Society Open Science | The Royal Society | Published : 2017
Acacia s.l. farnesiana, which originates from Mesoamerica, is the most widely distributed Acacia s.l. species across the tropics. It is assumed that the plant was transferred across the Atlantic to southern Europe by Spanish explorers, and then spread across the Old World tropics through a combination of chance long-distance and human-mediated dispersal. Our study uses genetic analysis and information from historical sources to test the relative roles of chance and human-mediated dispersal in its distribution. The results confirm the Mesoamerican origins of the plant and show three patterns of human-mediated dispersal. Samples from Spain showed greater genetic diversity than those from other..View full abstract
Awarded by Australian Research Council Grant
Awarded by Fundacao para a Ciencia e a Tecnologia
This project was funded through Australian Research Council Grant DP1093100 (H.R., D.J.M., C.A.K.). M.M.F. received doctoral scholarship funding from Fundacao para a Ciencia e a Tecnologia, ref. SFRH/BD/76100/2011.