Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Life on the Edge: Ecological Genetics of a High Arctic Insect Species and Its Circumpolar Counterpart
Show others and affiliations
Responsible organisation
2019 (English)In: Insects, ISSN 2075-4450, E-ISSN 2075-4450, Vol. 10, no 12, article id 427Article in journal (Refereed) Published
Abstract [en]

Arctic ecosystems are subjected to strong environmental constraints that prevent both the colonization and development of many organisms. In Svalbard, few aphid species have established permanent populations. These high arctic aphid species have developed peculiar life-history traits such as shortened life cycles and reduced dispersal capacities. Here, we present data on the distribution and population genetics of Acyrthosiphon svalbardicum in Spitsbergen, the main island of the Svalbard archipelago, and compared its genetic structure with that of its close relative Acyrthosiphon brevicorne, sampled in the top of Scandinavian mainland. We found that A. svalbardicum is common but heterogeneously distributed along the west coast of Spitsbergen. We recorded this species up to 79°12’, which constitutes the northernmost location for any aphid. Genetic structure examined using microsatellite markers showed more pronounced spatial differentiation in A. svalbardicum than in A. brevicorne populations, presumably due to reduced dispersal capacities in the former species. Although populations of A. brevicorne and A. svalbardicum were well-delineated at nuclear loci, they shared similar cytoplasmic DNA haplotypes as revealed by sequence analysis of two DNA barcodes. These results raise questions about whether these two taxa are different species, and the colonization sources and history of the Svalbard archipelago by A. svalbardicum.

Place, publisher, year, edition, pages
2019. Vol. 10, no 12, article id 427
Keywords [en]
Acyrthosiphon svalbardicum, A. brevicorne, aphids, population genetics, arctic, colonization, adaptation
National Category
Zoology
Identifiers
URN: urn:nbn:se:polar:diva-8328DOI: 10.3390/insects10120427OAI: oai:DiVA.org:polar-8328DiVA, id: diva2:1395538
Available from: 2020-02-23 Created: 2020-02-23 Last updated: 2020-02-24Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text
In the same journal
Insects
Zoology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf