Applications of Ancient DNA Research in the Field of Geobiology
Sheng Guilian
Tao Hualin
Song Shiwen
Yuan Junxia
Lai Xulong
Abstract：Among the many branches of geobiology,molecular palaeontology integrates multidisciplinary theories and methods,and plays an important role in exploring the speciation and evolution of organisms as well as the interaction between organisms and the environment in the geological history.Ancient DNA is one of the main carriers of molecular palaeontology research.It can reflect the genetic differences between individuals and provide irreplaceable real-time genetic information from ancient organisms for phylogeny and phylogeography.The genetic components legacy from some extinct groups to living populations not only reflect the history of gene flow between these groups and the ancestral populations of extant species,but also provide reference for protection of their living counterparts.In recent years,with the advancement of high-fragmented and trace amount DNA extraction and enrichment technologies,ancient DNA from sediments that does not rely on biological body fossils has become a rapid developing research direction,highlighting its importance in the reconstruction of ancient ecosystems and the ecological adaptation of organisms under the pressure of climate and environmental changes.This article focuses on the typical application examples and important significance of ancient DNA in geobiological fields in terms of phylogenetics,phylogeography,conservation biology,and Quaternary paleoenvironment and paleoclimate reconstruction,and looks forward to the application prospects of ancient DNA and ancient genomes in geobiology.
Keywords：geobiologyancient DNAphylogeneticsphylogeographygene flowecosystem restorationsedimentologyclimate change
Publication Date：2025-03-14
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：17( 1105-1121 )