TY - JOUR

T1 - Highly reduced genetic diversity of Rosa rubiginosa L. populations in the invasive range

AU - Zimmermann, Heike

AU - Ritz, Christiane

AU - Hirsch, Heidi

AU - Renison, Daniel

AU - Wesche, Karsten

AU - Hensen, Isabell

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Rosa rubiginosa (Rosaceae) populations introduced to Argentina successfully invade various habitats, forming extensive impenetrable thickets. To investigate the consequences of founder events and to track the native origin of Argentinean populations, the genetic diversity of invasive R. rubiginosa populations was compared with that of native populations in Europe, and genetic similarity was assessed between groups. We sampled 13 Argentinean populations and 20 native populations in Germany and Spain, and we applied two molecular marker techniques (simple sequence repeats and random amplification of polymorphic DNA [RAPD]). Genetic diversity within the invasive range was clearly lower than it was in the native range. Principle coordinate analysis and between-class analysis did not reveal the exact European origin of the invasive populations, but our data suggest that at least one Argentinean population originated in Germany. Overall, the strong similarity of RAPD and allelic phenotypes throughout Argentina suggests a limited number of introduction events, that the species spread through human transport, and that the few genetic phenotypes present in the species were conserved largely unaltered as a result of mainly asexual reproduction.

AB - Rosa rubiginosa (Rosaceae) populations introduced to Argentina successfully invade various habitats, forming extensive impenetrable thickets. To investigate the consequences of founder events and to track the native origin of Argentinean populations, the genetic diversity of invasive R. rubiginosa populations was compared with that of native populations in Europe, and genetic similarity was assessed between groups. We sampled 13 Argentinean populations and 20 native populations in Germany and Spain, and we applied two molecular marker techniques (simple sequence repeats and random amplification of polymorphic DNA [RAPD]). Genetic diversity within the invasive range was clearly lower than it was in the native range. Principle coordinate analysis and between-class analysis did not reveal the exact European origin of the invasive populations, but our data suggest that at least one Argentinean population originated in Germany. Overall, the strong similarity of RAPD and allelic phenotypes throughout Argentina suggests a limited number of introduction events, that the species spread through human transport, and that the few genetic phenotypes present in the species were conserved largely unaltered as a result of mainly asexual reproduction.

KW - Biology

KW - rosaceae

KW - genetic diversity

KW - invasive shrub

KW - native source population

KW - south america

UR - http://www.scopus.com/inward/record.url?scp=77951196272&partnerID=8YFLogxK

U2 - 10.1086/651244

DO - 10.1086/651244

M3 - Journal articles

VL - 171

SP - 435

EP - 446

JO - International Journal of Plant Sciences

JF - International Journal of Plant Sciences

SN - 1058-5893

IS - 4

ER -