Contribution of genetics for implementing population translocation of the threatened Arnica montana

摘要: Ecological restoration programmes aiming at population recovery of imperilled plant species increasingly involve translocations. Evaluating the genetic status seed source and target populations is essential for designing translocation protocols optimizing success. We developed nine polymorphic microsatellite markers used three plastid to investigate variation structure two last large six small remaining self-incompatible, clonally-propagating Arnica montana in southern Belgium bordering France. The aim study was determine these whether can be as Most maintained high diversity showed no inbreeding or a heterozygote excess, which may explained by genet longevity thanks clonal propagation, heterosis, depression early development stages and/or recruitment. Genotypic diversity low populations, with propagation mainly contributing rosette production. number genets, therefore effective size, often very small, restricting compatible mate availability. situation more critical than it seems on field, bringing new necessary. Although polymorphism found DNA markers, between-population differentiation based moderate, except where greater (FST > 0.200). These patterns were likely due drift effects demographic stochasticity. recommend using mixed material from translocations, before conducting reinforcements, first implement crossing experiments reintroductions crossed ecologically restored sites understand long-term combining genotypes different locations.