uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Nuclear and cytoplasmic genetic diversity reveals long-term population decline in Abies semenovii, an endemic fir of central Asia
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
2012 (English)In: Canadian Journal of Forest Research, ISSN 0045-5067, Vol. 42, no 12, 2142-2152 p.Article in journal (Refereed) Published
Abstract [en]

The genus Abies is one of the largest conifer genera and many of the marginal species remain poorly characterized. Abies semenovii B. Fedtsch. is a rare mountain fir species from central Asia, and its species status is still disputed. We used both nuclear (allozymes and AFLP) and chloroplastic (cpSSR) markers to show that A. semenovii deserves to be considered as a species and that its low genetic diversity justifies more a proactive conservation policy. First, A. semenovii was significantly differentiated from the Siberian fir Abies sibirica Ledeb. and we did not detect gene flow between the two species. Second, A. semenovii has a very low nuclear genetic diversity, suggesting a prolonged restricted effective population size. Abies semenovii had low cpSSR diversity too but the identification of seven closely related haplotypes suggests that these mutations accumulated recently during a phase of population expansion. This agrees well with the palynological record and is in contrast with the situation observed in another rare Eurasian fir endemic to Kamchatka, Abies gracilis Kom., which was devoid of variation in cpSSRs but that also had a more substantial nuclear marker diversity than A. semenovii, thereby suggesting a more recent but less severe population bottleneck.

Place, publisher, year, edition, pages
2012. Vol. 42, no 12, 2142-2152 p.
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-192072DOI: 10.1139/cjfr-2012-0158ISI: 000312383600011OAI: oai:DiVA.org:uu-192072DiVA: diva2:588756
Available from: 2013-01-15 Created: 2013-01-15 Last updated: 2013-01-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Lascoux, Martin
By organisation
Plant Ecology and Evolution
In the same journal
Canadian Journal of Forest Research
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
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: 232 hits
ReferencesLink to record
Permanent link

Direct link