?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Low+level+of+gene+flow+from+cultivated+beets+(Beta+vulgaris+L.+ssp.+vulgaris)+into+Danish+populations+of+sea+beet+(Beta+vulgaris+L.+ssp.+maritima+(L.)+Arcangeli)&rft.creator=Andersen%2C+N.S.&rft.creator=Siegismund%2C+H.R.&rft.creator=Meyer%2C+V.&rft.creator=J%C3%83%C2%B8rgensen%2C+R.B.&rft.subject=+Environmental+aspects&rft.subject=+Biodiversity+and+ecosystem+services&rft.description=Gene+flow+from+sugar+beets+to+sea+beets+occurs+in+the+seed+propagation+areas+in+southern+Europe.+Some+seed+propagation+also+takes+place+in+Denmark%2C+but+here+the+crop%C3%A2%C2%80%C2%93wild+gene+flow+has+not+been+investigated.+Hence%2C+we+studied+gene+flow+to+sea+beet+populations+from+sugar+beet+lines+used+in+Danish+seed+propagation+areas.+A+set+of+12+Danish%2C+two+Swedish%2C+one+French%2C+one+Italian%2C+one+Dutch%2C+and+one+Irish+populations+of+sea+beets%2C+and+four+lines+of+sugar+beet+were+analysed.+To+evaluate+the+genetic+variation+and+gene+flow%2C+eight+microsatellite+loci+were+screened.+This+analysis+revealed+hybridization+with+cultivated+beet+in+one+of+the+sea+beet+populations+from+the+centre+of+the+Danish+seed+propagation+area.+Triploid+hybrids+found+in+this+population+were+verified+with+flow+cytometry.+Possible+hybrids+or+introgressed+plants+were+also+found+in+the+French+and+Italian+populations.+However%2C+individual+assignment+test+using+a+Bayesian+method+provided+100+%25+assignment+success+of+diploid+individuals+into+their+correct+subspecies+of+origin%2C+and+a+Bayesian+Markov+chain+Monte+Carlo+(MC+MC)+approach+revealed+clear+distinction+of+individuals+into+groups+according+to+their+subspecies+of+origin%2C+with+a+zero+level+of+genetic+admixture+among+subspecies.+This+underlines+that+introgression+beyond+the+first+hybridization+is+not+extensive.+The+overall+pattern+of+genetic+distance+and+structure+showed+that+Danish+and+Swedish+sea+beet+populations+were+closely+related+to+each+other%2C+and+they+are+both+more+closely+related+to+the+population+from+Ireland+than+to+the+populations+from+France%2C+the+Netherlands%2C+and+Italy.&rft.date=2005-01&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F6007%2F1%2F6007.pdf&rft.identifier=Andersen%2C+N.S.%3B+Siegismund%2C+H.R.%3B+Meyer%2C+V.+and+J%C3%83%C2%B8rgensen%2C+R.B.+(2005)+Low+level+of+gene+flow+from+cultivated+beets+(Beta+vulgaris+L.+ssp.+vulgaris)+into+Danish+populations+of+sea+beet+(Beta+vulgaris+L.+ssp.+maritima+(L.)+Arcangeli).+Molecular+Ecology%2C+14%2C+pp.+1391-1405.&rft.relation=http%3A%2F%2Forgprints.org%2F6007%2F