Investigating mammalian evolution using million-year genomic transects

Introduction

The field of ancient DNA has made major contributions to evolutionary biology and palaeontology in recent years, due to its power to reveal novel information about prehistory. However, even though many of the evolutionary processes that shaped the present-day biota have taken place over hundreds of thousands of years, nearly all ancient DNA studies to date have focused on biological changes during the last 50,000 years.

Project Proposal

I here propose a groundbreaking project that aims to study evolution on a million-year time scale. We will develop and apply novel palaeogenomic methods to extend the current limits of DNA recovery, which will allow us to address scientific questions previously thought to be beyond the realm of ancient DNA research.

Objectives

More specifically, we aim to:

1. Sequence one hundred ancient genomes recovered from Early and Middle Pleistocene remains of multiple Holarctic mammalian species.
2. Examine macroevolutionary changes across speciation events and key periods of Pleistocene climate change.
3. Investigate several fundamental questions on:
   • How species originate
   • The importance of interspecific introgression
   • The timing and rate of adaptive evolution
   • The demographic consequences of past environmental change

Research Group Expertise

My research group has a track record at the cutting-edge of wildlife palaeogenomics and recently led the study that extended the limit of ancient DNA recovery to beyond one million years.

Project Location and Impact

Based at the newly established Centre for Palaeogenetics in Stockholm, the project will extend beyond the current state of the art and will set a new paradigm for palaeogenomic research.

Conclusion

The resulting data will provide an unparalleled resource for researchers studying long-term evolutionary dynamics and environmental changes at a global scale.