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Inheritance beyond plain heritability: variance-controlling genes in Arabidopsis thaliana
Högskolan Dalarna, Akademin Industri och samhälle, Statistik.ORCID-id: 0000-0003-4390-1979
Högskolan Dalarna, Akademin Industri och samhälle, Statistik.ORCID-id: 0000-0002-1057-5401
2012 (engelsk)Inngår i: PLOS Genetics, ISSN 1553-7390, E-ISSN 1553-7404, Vol. 8, nr 8, artikkel-id e1002839Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The phenotypic effect of a gene is normally described by the mean-difference between alternative genotypes. A gene may, however, also influence the phenotype by causing a difference in variance between genotypes. Here, we reanalyze a publicly available Arabidopsis thaliana dataset [1] and show that genetic variance heterogeneity appears to be as common as normal additive effects on a genomewide scale. The study also develops theory to estimate the contributions of variance differences between genotypes to the phenotypic variance, and this is used to show that individual loci can explain more than 20% of the phenotypic variance. Two well-studied systems, cellular control of molybdenum level by the ion-transporter MOT1 and flowering-time regulation by the FRI-FLC expression network, and a novel association for Leaf serration are used to illustrate the contribution of major individual loci, expression pathways, and gene-by-environment interactions to the genetic variance heterogeneity.

sted, utgiver, år, opplag, sider
2012. Vol. 8, nr 8, artikkel-id e1002839
HSV kategori
Forskningsprogram
Komplexa system - mikrodataanalys, Statistisk modellering är grunden till en ökad förståelse inom genetik!; Komplexa system - mikrodataanalys, Allmänt Mikrodataaanalys - metod
Identifikatorer
URN: urn:nbn:se:du-10538DOI: 10.1371/journal.pgen.1002839ISI: 000308529300006PubMedID: 22876191OAI: oai:DiVA.org:du-10538DiVA, id: diva2:543921
Forskningsfinansiär
Swedish Research Council FormasTilgjengelig fra: 2012-08-10 Laget: 2012-08-10 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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