Arabidopsis halleri
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA422976 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Arabidopsis halleri Raw sequence reads of populations
| PRJNA495924 | ENA
Project description:Raw sequence reads and transcriptome assembly of a metallicolous Polish population of Arabidopsis halleri subsp. halleri
| PRJNA388549 | ENA
Project description:Arabidopsis halleri subsp. halleri Genome sequencing and assembly
| PRJNA422908 | ENA
Project description:Gene copy number variation (CNV) is a form of genetic polymorphism that contributes significantly to genome size and function but remains poorly characterized due to technological limitations. Inter-specific comparisons of CNVs in recently diverged plant species are crucial to uncover selection patterns underlying adaptation of a species to stressful environments. Especially given that gene amplifications have long been implicated in emergence of species-specific traits, we conducted a genome-wide survey to identify species-specific gene copy number expansions and deletions in the model extremophile species - Arabidopsis halleri that has diverged in evolutionarily recent time from Arabidopsis thaliana. Cross-species cDNA array based comparative genomic hybridization was employed to compare and identify gene copy number variation in the two sister-species - the metallophyte Arabidopsis halleri and non-metallophyte Arabidopsis lyrata, both relative to Arabidopsis thaliana. We uncovered an unprecedented level of gene copy number polymorphism in Arabidopsis halleri, with a species-specific enrichment of metal homeostasis function in the genes found to be copy number expanded, thus indicating CNV as a mechanism that underlies the key physiological trait of metal hyperaccumulation and hypetolerance in A. halleri.
2016-09-30 | GSE52003 | GEO
Project description:AhNAS2 suppression in Arabidopsis halleri roots
| PRJNA145285 | ENA
Project description:Arabidopsis halleri Genome sequencing and assembly
| PRJNA492199 | ENA
Project description:The model Zn hyperaccumulators Arabidopsis halleri and Noccaea caerulescens share elevated nicotianamine synthase (NAS) expression relative to non-accumulators among a core of alterations in metal homeostasis gene expression. Suppression of AhNAS2 expression by RNAi resulted in strongly reduced root NA accumulation and a concomitant decrease in root-to-shoot-translocation of Zn but not of other micronutrients. Few secondary effects on the root transcriptome were detected by microarray analysis.
2011-12-31 | GSE31778 | GEO
Project description:The model Zn hyperaccumulators Arabidopsis halleri and Noccaea caerulescens share elevated nicotianamine synthase (NAS) expression relative to non-accumulators among a core of alterations in metal homeostasis gene expression. Suppression of AhNAS2 expression by RNAi resulted in strongly reduced root NA accumulation and a concomitant decrease in root-to-shoot-translocation of Zn but not of other micronutrients. Few secondary effects on the root transcriptome were detected by microarray analysis. Vegetatively propagated clones of A. halleri wildtype plants and a line with strong suppression of AhNAS2 were grown hydroponically for weeks in two different media (control Hoagland and 10 µM Zn2+ added). Roots were harvested and analyzed. Three plants were pooled for one sample. Three independent experiments were performed.
2011-12-31 | E-GEOD-31778 | biostudies-arrayexpress
Project description:Arabidopsis halleri subsp. halleri strain:Wild plants Genome sequencing
| PRJNA217703 | ENA