liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Low genetic diversity despite multipleintroductions of the invasive plant species Impatiens glandulifera in Europe
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
Norwegian University of Science and Technology, Department of Biology, NO-7491 Trondheim, Norway, 3University of Applied Sciences Bremen, DE-28199 Bremen, Germany.
Norwegian University of Science and Technology, Department of Biology, NO-7491 Trondheim, Norway.
Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre, SE-230 53 Alnarp, Sweden.
Show others and affiliations
2015 (English)In: BMC Genetics, ISSN 1471-2156, Vol. 16, no 103Article in journal (Refereed) Published
Abstract [en]

Background: Invasive species can be a major threat to native biodiversity and the number of invasive plant speciesis increasing across the globe. Population genetic studies of invasive species can provide key insights into theirinvasion history and ensuing evolution, but also for their control. Here we genetically characterise populations ofImpatiens glandulifera, an invasive plant in Europe that can have a major impact on native plant communities. Wecompared populations from the species’ native range in Kashmir, India, to those in its invaded range, along alatitudinal gradient in Europe. For comparison, the results from 39 other studies of genetic diversity in invasivespecies were collated.

Results: Our results suggest that I. glandulifera was established in the wild in Europe at least twice, from an areaoutside of our Kashmir study area. Our results further revealed that the genetic diversity in invasive populations ofI. glandulifera is unusually low compared to native populations, in particular when compared to other invasivespecies. Genetic drift rather than mutation seems to have played a role in differentiating populations in Europe. Wefind evidence of limitations to local gene flow after introduction to Europe, but somewhat less restrictions in thenative range. I. glandulifera populations with significant inbreeding were only found in the species’ native rangeand invasive species in general showed no increase in inbreeding upon leaving their native ranges. In Europe wedetect cases of migration between distantly located populations. Human activities therefore seem to, at leastpartially, have facilitated not only introductions, but also further spread of I. glandulifera across Europe.

Conclusions: Although multiple introductions will facilitate the retention of genetic diversity in invasive ranges,widespread invasive species can remain genetically relatively invariant also after multiple introductions. Phenotypicplasticity may therefore be an important component of the successful spread of Impatiens glandulifera across Europe.

Place, publisher, year, edition, pages
2015. Vol. 16, no 103
Keyword [en]
SSRs, Colonisation events, Exotic species, Molecular diversity, Weeds
National Category
URN: urn:nbn:se:liu:diva-120693DOI: 10.1186/s12863-015-0242-8ISI: 000359699200001PubMedID: 26289555OAI: diva2:847773

Funders:  Research Foundation - Flanders (FWO); CBD (Center for Biodiversity Dynamics), NTNU

Available from: 2015-08-21 Created: 2015-08-21 Last updated: 2015-09-14

Open Access in DiVA

fulltext(2047 kB)57 downloads
File information
File name FULLTEXT01.pdfFile size 2047 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Hagenblad, Jenny
By organisation
BiologyFaculty of Science & Engineering
In the same journal
BMC Genetics

Search outside of DiVA

GoogleGoogle Scholar
Total: 57 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 42 hits
ReferencesLink to record
Permanent link

Direct link