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

Direct link
Flowering time QTL in natural populations of Arabidopsis thaliana and implications for their adaptive value
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
2014 (English)In: Molecular Ecology, ISSN 0962-1083, E-ISSN 1365-294X, Vol. 23, no 17, 4291-4303 p.Article in journal (Refereed) Published
Abstract [en]

The genetic basis of phenotypic traits is of great interest to evolutionary biologists, but their contribution to adaptation in nature is often unknown. To determine the genetic architecture of flowering time in ecologically relevant conditions, we used a recombinant inbred line population created from two locally adapted populations of Arabidopsis thaliana from Sweden and Italy. Using these RILs, we identified flowering time QTL in growth chambers that mimicked the natural temperature and photoperiod variation across the growing season in each native environment. We also compared the genomic locations of flowering time QTL to those of fitness (total fruit number) QTL from a previous three-year field study. Ten total flowering time QTL were found, and in all cases, the Italy genotype caused early flowering regardless of the conditions. Two QTL were consistent across chamber environments, and these had the largest effects on flowering time. Five of the fitness QTL colocalized with flowering time QTL found in the Italy conditions, and in each case, the local genotype was favoured. In contrast, just two flowering time QTL found in the Sweden conditions colocalized with fitness QTL and in only one case was the local genotype favoured. This implies that flowering time may be more important for adaptation in Italy than Sweden. Two candidate genes (FLC and VIN3) underlying the major flowering time QTL found in the current study are implicated in local adaptation.

Place, publisher, year, edition, pages
2014. Vol. 23, no 17, 4291-4303 p.
Keyword [en]
adaptation, ecological genetics, life history evolution, phenotypic plasticity, quantitative genetics
National Category
Ecology Biochemistry and Molecular Biology
URN: urn:nbn:se:uu:diva-233000DOI: 10.1111/mec.12857ISI: 000341176200011OAI: oai:DiVA.org:uu-233000DiVA: diva2:754586
Available from: 2014-10-10 Created: 2014-09-29 Last updated: 2014-10-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Ågren, Jon
By organisation
Plant Ecology and Evolution
In the same journal
Molecular Ecology
EcologyBiochemistry and Molecular Biology

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: 202 hits
ReferencesLink to record
Permanent link

Direct link