caa a22 4500 445857617 CHVBK 20180317145433.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10592-011-0186-0 doi (NATIONALLICENCE)springer-10.1007/s10592-011-0186-0 Invasion genetics of Microstegium vimineum (Poaceae) within the James River Basin of Virginia, USA [Elektronische Daten] [Stephen Baker, Rodney Dyer] Patterns of spatial genetic structure produced following the expansion of an invasive species into novel habitats reflect demographic processes that have shaped the genetic structure we see today. We examined 359 individuals from 23 populations over 370km within the James River Basin of Virginia, USA as well as four populations outside of the basin. Population diversity levels and genetic structure was quantified using several analyses. Within the James River Basin there was evidence for three separate introductions and a zone of secondary contact between two distinct lineages suggesting a relatively recent expansion within the basin. Microstegium vimineum possesses a mixed-mating system advantageous to invasion and populations with low diversity were found suggesting a recent founder event and self-fertilization. However, surprisingly high levels of diversity were found in some populations suggesting that out-crossing does occur. Understanding how invasive species spread and the genetic consequences following expansion may provide insights into the cause of invasiveness and can ultimately lead to better management strategies for control and eradication. Springer Science+Business Media B.V., 2011 Microstegium vimineum nationallicence Invasive species nationallicence Genetic structure nationallicence Founder effects nationallicence Secondary contact nationallicence Baker Stephen Department of Biology, Virginia Commonwealth University, 23284, Richmond, VA, USA aut Dyer Rodney Department of Biology, Virginia Commonwealth University, 23284, Richmond, VA, USA aut Conservation Genetics Springer Netherlands 12/3(2011-06-01), 793-803 1566-0621 12:3<793 2011 12 10592 https://doi.org/10.1007/s10592-011-0186-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0186-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baker Stephen Department of Biology, Virginia Commonwealth University, 23284, Richmond, VA, USA aut NATIONALLICENCE 700 1- Dyer Rodney Department of Biology, Virginia Commonwealth University, 23284, Richmond, VA, USA aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/3(2011-06-01), 793-803 1566-0621 12:3<793 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer