Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA156957 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Selection of epigenetic variation in Arabidopsis [Expression]
| PRJNA156955 | ENA
Project description:Selection of epigenetic variation in Arabidopsis [SNP data]
| PRJNA205864 | ENA
Project description:Natural epigenetic variation provides a source for the generation of phenotypic diversity, but to understand its contribution to phenotypic diversity, its interaction with genetic variation requires further investigation. MethylC-seq from naturally-occurring Arabidopsis accessions
2013-03-05 | E-GEOD-43857 | biostudies-arrayexpress
Project description:Epigenetic natural variation in Arabidopsis thaliana
| PRJNA100323 | ENA
Project description:In Arabidopsis thaliana a high rate of spontaneous epigenetic variation can occur in the DNA methylome in the absence of genetic variation and selection. It has been of great interest, whether natural epigenetic variation is subject to selection and contributes to fitness and adaptation in selective environments. We compared the variation in selected phenotypic traits, genome-wide cytosine DNA methylation and gene expression in two Arabidopsis recombinant inbred lines, which had undergone five generations of selection in experimental landscapes relative to their genetically identical ancestors. Selected populations exerted significant differences in flowering time and the number of branches and fruits, differences that were maintained over two to three generations in the absence of selection. We identified 4,629 and 5,158 differentially methylated cytosines which were overrepresented in genes that regulate flowering time, epigenetic processes, development and morphogenesis. Differentially methylated genes were enriched in differentially expressed genes. Thus, epigenetic variation is subject to selection and may play an important role in the adaptive response of populations in rapidly changing natural environments.
2014-09-01 | GSE47490 | GEO
Project description:Plants display remarkable developmental and phenotypic plasticity in order to adapt to their environment. It has long been postulated that epigenetics plays a key role in these processes, but with one or two exceptions, solid evidence for the role of epigenetic variation in these processes is lacking. A key impediment to understanding these processes is the lack of information on the extent of epigenetic variation and how it relates to genetic and phenotypic variation in natural population, both over the lifecycle of an individual, and over evolutionary time. Here we show that genetic variants under selection in the north of Sweden appear to drive variation in DNA methylation, which in turn is highly correlated with local climate. Selective sweeps and genetic variants associated with adaptation to the local environment have previously been identified within the Swedish Arabidopsis population. Our finding that they harbour variants responsible for climate associated epigenetic variation strongly supports the role of epigenetic processes in local adaptation. These findings provide a basis for further dissecting the role of epigenetics in local adaptation at the molecular level Bisulfite sequencing of 113 F2 crosses between T550 and Brosarp-11-135.
2015-03-28 | E-GEOD-65685 | biostudies-arrayexpress
Project description:Arabidopsis msh1 mutants display developmental reprogramming (dr) phenotypes, include reduction in growth, enhanced branching, and delayed maturation and flowering time. MSH1-epi lines were derived by crossing MSH-dr lines with Col-0 wild type, followed by selection for homozygous MSH1/MSH1 F2 plants and serial self-pollination. MSH1-epiF3 plants displayed phenotypic variation in plant growth, showing enhanced growth, larger rosette diameter, thicker floral stems and earlier flowering time. We carried bisulfite sequencing and uncover the methylome changes accompany the heritable MSH1-epi phenotypes that condition dramatic variation in plant growth. 3 samples examined: wild type, Msh1-epiF3, msh1 mutant
2014-01-01 | E-GEOD-36783 | biostudies-arrayexpress
Project description:In Arabidopsis thaliana a high rate of spontaneous epigenetic variation can occur in the DNA methylome in the absence of genetic variation and selection. It has been of great interest, whether natural epigenetic variation is subject to selection and contributes to fitness and adaptation in selective environments. We compared the variation in selected phenotypic traits, genome-wide cytosine DNA methylation and gene expression in two Arabidopsis recombinant inbred lines, which had undergone five generations of selection in experimental landscapes relative to their genetically identical ancestors. Selected populations exerted significant differences in flowering time and the number of branches and fruits, differences that were maintained over two to three generations in the absence of selection. We identified 4,629 and 5,158 differentially methylated cytosines which were overrepresented in genes that regulate flowering time, epigenetic processes, development and morphogenesis. Differentially methylated genes were enriched in differentially expressed genes. Thus, epigenetic variation is subject to selection and may play an important role in the adaptive response of populations in rapidly changing natural environments.
2014-09-01 | GSE36844 | GEO
Project description:In Arabidopsis thaliana a high rate of spontaneous epigenetic variation can occur in the DNA methylome in the absence of genetic variation and selection. It has been of great interest, whether natural epigenetic variation is subject to selection and contributes to fitness and adaptation in selective environments. We compared the variation in selected phenotypic traits, genome-wide cytosine DNA methylation and gene expression in two Arabidopsis recombinant inbred lines, which had undergone five generations of selection in experimental landscapes relative to their genetically identical ancestors. Selected populations exerted significant differences in flowering time and the number of branches and fruits, differences that were maintained over two to three generations in the absence of selection. We identified 4,629 and 5,158 differentially methylated cytosines which were overrepresented in genes that regulate flowering time, epigenetic processes, development and morphogenesis. Differentially methylated genes were enriched in differentially expressed genes. Thus, epigenetic variation is subject to selection and may play an important role in the adaptive response of populations in rapidly changing natural environments.
2014-09-01 | GSE36845 | GEO
Project description:Arabidopsis msh1 mutants display developmental reprogramming (dr) phenotypes, include reduction in growth, enhanced branching, and delayed maturation and flowering time. MSH1-epi lines were derived by crossing MSH-dr lines with Col-0 wild type, followed by selection for homozygous MSH1/MSH1 F2 plants and serial self-pollination. MSH1-epiF3 plants displayed phenotypic variation in plant growth, showing enhanced growth, larger rosette diameter, thicker floral stems and earlier flowering time. We carried bisulfite sequencing and uncover the methylome changes accompany the heritable MSH1-epi phenotypes that condition dramatic variation in plant growth.
2014-01-01 | GSE36783 | GEO