Reconstruction of past ecosystems by barcoding DNA preserved in permafrost View Homepage


Ontology type: schema:MonetaryGrant     


Grant Info

YEARS

2008-2013

FUNDING AMOUNT

9499985 NOK

ABSTRACT

Recent advances in ultra-high-throughput DNA sequencing technology and in species identification (?barcoding?) tools based on ancient DNA preserved in permafrost soils are opening up a novel research avenue for paleoecological reconstruction. In this proj ect, we will develop new DNA barcoding markers for several groups of organisms (bryophytes, fungi, insects, springtails, vertebrates) that are short enough to amplify from degraded DNA. These markers will be sequenced in modern DNA to construct taxonomic reference databases for ecologically important arctic species, and thereafter used for species identification by pyrosequencing environmental DNA from dated permafrost cores (available through our EU-project ECOCHANGE). The new data obtained for these org anisms, along with complementary data for vascular plants, will be merged with vascular plant data available from ECOCHANGE and used for reconstructions of past ecosystems. The overall resolution level possible to obtain by this novel approach is not yet known, but the preliminary results from ECOCHANGE suggest that the reconstructions will be considerably improved compared to traditional fossil analyses. The results can therefore have immediate bearing on various central ecological issues, such as past s pecies turnover dynamics in assemblages, niche stability in time and space, and backward testing of predictive species distribution models. The project team will consist of two postdocs funded by the Research Council and one PhD student funded by the Natu ral History Museum in Oslo, in addition to national and international leading experts on ancient DNA, DNA barcoding, bioinformatics, and various taxonomic groups. The group will be closely linked to the international ECOCHANGE team to ensure immediate acc ess to new developments in pyrosequencing and bioinformatics tools. More... »

URL

https://www.forskningsradet.no/prosjektbanken/#/project/NFR/191627/Sprak=en

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