SNP genotyping and environmental niche modelling using herbarium specimens of the northern dragonhead, Dracocephalum ruyschiana (Lamiaceae)

Abstract

Maintenance of genetic diversity is a central aim of species conservation, given its positive effect on species survival and adaptation in a changing environment. Data from different time points is key for understanding how populations behave under various conditions. In this regard, herbarium specimens are an invaluable source of information from the past. Still, utilizing archived biological material for studying trends of genetic diversity offers challenges such as DNA degradation and the lack of standardized, cost- and time efficient methods.