Publikation:

The History of Tree and Shrub Taxa on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the Last Interglacial Uncovered by Sedimentary Ancient DNA and Pollen Data

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Datum

2017

Autor:innen

Zimmermann, Heike H.
Raschke, Elena
Stoof-Leichsenring, Kathleen R.
Schirrmeister, Lutz
Schwamborn, Georg
Herzschuh, Ulrike

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URI (zitierfähiger Link)
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1lqimyofuy0q60
DOI (zitierfähiger Link)
https://doi.org/10.3390/genes8100273
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CC BY 4.0

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Open Access-Veröffentlichung
Open Access Gold

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Biologie: Publikationen
Core Facility der Universität Konstanz

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Published

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Genes. 2017, 8(10), 273. eISSN 2073-4425. Available under: doi: 10.3390/genes8100273

Zusammenfassung

Ecosystem boundaries, such as the Arctic-Boreal treeline, are strongly coupled with climate and were spatially highly dynamic during past glacial-interglacial cycles. Only a few studies cover vegetation changes since the last interglacial, as most of the former landscapes are inundated and difficult to access. Using pollen analysis and sedimentary ancient DNA (sedaDNA) metabarcoding, we reveal vegetation changes on Bol'shoy Lyakhovsky Island since the last interglacial from permafrost sediments. Last interglacial samples depict high levels of floral diversity with the presence of trees (Larix, Picea, Populus) and shrubs (Alnus, Betula, Ribes, Cornus, Saliceae) on the currently treeless island. After the Last Glacial Maximum, Larix re-colonised the island but disappeared along with most shrub taxa. This was probably caused by Holocene sea-level rise, which led to increased oceanic conditions on the island. Additionally, we applied two newly developed larch-specific chloroplast markers to evaluate their potential for tracking past population dynamics from environmental samples. The novel markers were successfully re-sequenced and exhibited two variants of each marker in last interglacial samples. SedaDNA can track vegetation changes as well as genetic changes across geographic space through time and can improve our understanding of past processes that shape modern patterns.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
570 Biowissenschaften, Biologie

Schlagwörter

sedaDNA; metabarcoding; trnL; single-nucleotide polymorphism (SNP); treeline; MIS 5 to 1; permafrost deposits; radiocarbon ages; palaeoenvironment; Larix

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ISO 690ZIMMERMANN, Heike H., Elena RASCHKE, Laura S. EPP, Kathleen R. STOOF-LEICHSENRING, Lutz SCHIRRMEISTER, Georg SCHWAMBORN, Ulrike HERZSCHUH, 2017. The History of Tree and Shrub Taxa on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the Last Interglacial Uncovered by Sedimentary Ancient DNA and Pollen Data. In: Genes. 2017, 8(10), 273. eISSN 2073-4425. Available under: doi: 10.3390/genes8100273
BibTex
@article{Zimmermann2017-10-13Histo-45581,
  year={2017},
  doi={10.3390/genes8100273},
  title={The History of Tree and Shrub Taxa on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the Last Interglacial Uncovered by Sedimentary Ancient DNA and Pollen Data},
  number={10},
  volume={8},
  journal={Genes},
  author={Zimmermann, Heike H. and Raschke, Elena and Epp, Laura S. and Stoof-Leichsenring, Kathleen R. and Schirrmeister, Lutz and Schwamborn, Georg and Herzschuh, Ulrike},
  note={Article Number: 273}
}
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