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          Institute: MPI für Entwicklungsbiologie     Collection: Abteilung 6 - Molecular Biology (D. Weigel)     Display Documents



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ID: 591488.0, MPI für Entwicklungsbiologie / Abteilung 6 - Molecular Biology (D. Weigel)
Genetic architecture of flowering-time variation in Arabidopsis thaliana
Authors:Salome, P. A.; Bomblies, K.; Laitinen, R. A.; Yant, L.; Mott, R.; Weigel, D.
Date of Publication (YYYY-MM-DD):2011-06
Title of Journal:Genetics
Volume:188
Issue / Number:2
Start Page:421
End Page:433
Review Status:not specified
Audience:Not Specified
Abstract / Description:The onset of flowering is an important adaptive trait in plants. The small ephemeral species Arabidopsis thaliana grows under a wide range of temperature and day-length conditions across much of the Northern hemisphere, and a number of flowering-time loci that vary between different accessions have been identified before. However, only few studies have addressed the species-wide genetic architecture of flowering-time control. We have taken advantage of a set of 18 distinct accessions that present much of the common genetic diversity of A. thaliana and mapped quantitative trait loci (QTL) for flowering time in 17 F(2) populations derived from these parents. We found that the majority of flowering-time QTL cluster in as few as five genomic regions, which include the locations of the entire FLC/MAF clade of transcription factor genes. By comparing effects across shared parents, we conclude that in several cases there might be an allelic series caused by rare alleles. While this finding parallels results obtained for maize, in contrast to maize much of the variation in flowering time in A. thaliana appears to be due to large-effect alleles.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Entwicklungsbiologie/Abteilung 6 - Molekulare Biologie (Detlef Weigel)
External Affiliations:%G eng
Identifiers:ISSN:1943-2631 (Electronic) 0016-6731 (Linking) %R gene... [ID No:1]
URL:http://www.ncbi.nlm.nih.gov/pubmed/21406681 [ID No:2]
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