The untapped potential of macrofossils in ancient plant DNA research. ...

• Main Authors: Schwörer, Christoph, Leunda, Maria, Alvarez, Nadir, Gugerli, Felix, Sperisen, Christoph
• Format: Text
• Language: unknown
• Published: Wiley 2022
• Subjects: 580 Plants Botany; Ice; permafrost
• Online Access: https://dx.doi.org/10.48350/167860; https://boris.unibe.ch/167860/

The rapid development of ancient DNA (aDNA) analysis in the last decades has induced a paradigm shift in ecology and evolution. Driven by a combination of breakthroughs in DNA isolation techniques, high-throughput sequencing and bioinformatics, ancient genome-scale data for a rapidly growing variety of taxa is now available, allowing researchers to directly observe demographic and evolutionary processes over time. However, the vast majority of palaeogenomic studies still focuses on human or animal remains. In this article, we make the case for a vast untapped resource of ancient plant material that is ideally suited for palaeogenomic analyses: Plant remains such as needles, leaves, wood, seeds or fruits that are deposited in natural archives, such as lake sediments, permafrost or even ice caves. Such plant remains are commonly found in large numbers and in stratigraphic sequence through time and have so far been used primarily to reconstruct past local species presences and abundances. However, they are also ...