Vicariant divergence in peatmosses
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB30013 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR2964980.fastq.gz | Fastqsanger.gz | |||
| ERR2964990.fastq.gz | Fastqsanger.gz | |||
| ERR2965000.fastq.gz | Fastqsanger.gz | |||
| ERR2965010.fastq.gz | Fastqsanger.gz | |||
| ERR2965020.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 114 |
Similar Datasets
Project description:Drosophila Divergence 20091001
| PRJNA118209 | ENA
Project description:This SuperSeries is composed of the following subset Series: GSE34280: Clonal Selection Drives Genetic Divergence of Metastatic Medulloblastoma [Affymetrix SNP6 Arrays] GSE34355: Clonal Selection Drives Genetic Divergence of Metastatic Medulloblastoma [Illumina Infinium HumanMethylation27 Beadchip v1.2] Refer to individual Series
2011-12-13 | E-GEOD-34356 | biostudies-arrayexpress
Project description:Regulatory divergence during limb evolution
| PRJNA521485 | ENA
Project description:Neural divergence and hybrid disruption between ecologically isolated Heliconius butterflies
| PRJEB42387 | ENA
Project description:Although not all sex-dependent gene expression is adaptive, it is likely an important genomic mechanism that allows each sex to independently adapt to environmental changes. Among Drosophila species, sex-biased genes display remarkably consistent evolutionary patterns; male-biased genes evolve faster than unbiased genes in both coding sequence and expression level, suggesting sex-differences in selection through time. However, comparatively little is known of the evolutionary process shaping sex-biased expression within species. Latitudinal clines offer an opportunity to examine how changes in key ecological parameters also influence sex-specific selection and the evolution of sex-biased gene expression. We assayed male and female gene expression in Drosophila serrata along a latitudinal gradient in eastern Australia spanning most of its endemic distribution. Analysis of 11,631 genes across eight populations revealed strong sex differences in the frequency, mode, and strength of divergence. Divergence was far stronger in males than females and while latitudinal clines were evident in both sexes, male divergence was often population-specific, suggesting responses to localized selection pressures that do not covary predictably with latitude. While divergence was enriched for male-biased genes, there was no overrepresentation of X-linked genes in males. By contrast, X-linked divergence was elevated in females, especially for female biased genes. Many genes that diverged in D. serrata have homologs also showing latitudinal divergence in D. simulans and D. melanogaster on other continents, likely indicating parallel adaptation in these distantly related species. Our results suggest that sex differences in selection play an important role in shaping the evolution of gene expression over macro- and micro-ecological spatial scales.
2017-01-04 | GSE90733 | GEO
Project description:To examine the ways in which gene expression varies in natural populations and its relationship to genetic divergence, we estimated allele-specific expression in the offspring of multiple wild C. elegans strains crossed with the laboratory reference strain N2. Allele-specific expression analyses are uniquely sensitively able to identify cis regulatory changes, and coupled with analyses of differential expression between parental strains and parents and offspring can determine the regulatory pattern and inheritance mode of gene expression across the genome. We chose 7 strains that represented a range of divergence from N2 and spanned the species tree to cross with N2: EG4348; DL238; CB4856 (the classical ‘Hawaiian’ strain); ECA722; QX1211; and ECA701 and XZ1516 (two extremely diverged strains). This study sheds light on the relationship of genetic and expression divergence, the global patterns of inheritance and regulatory mode of genes in C. elegans, and the factors that differentiate genes with expression divergence from those with stabler expression.
2024-10-14 | GSE272616 | GEO
Project description:The interplay between phenotypic plasticity and adaptive evolution has long been an important topic of evolutionary biology. This process is critical to our understanding of a species evolutionary potential in light of rapid climate changes. Despite recent theoretical work, empirical studies of natural populations, especially in marine invertebrates, are scarce. In this study, we investigated the relationship between adaptive divergence and plasticity by integrating genetic and phenotypic variation in Pacific oysters from its natural range in China. Genome resequencing of 371 oysters revealed unexpected fine-scale genetic structure that is largely consistent with phenotypic divergence in growth, physiology, thermal tolerance and gene expression across environmental gradient. These findings suggest that selection and local adaptation are pervasive and together with limited gene flow shape adaptive divergence. Plasticity in gene expression is positively correlated with evolved divergence, indicating that plasticity is adaptive and likely favored by selection in organisms facing dynamic environments such as oysters. Divergence in heat response and tolerance implies that the evolutionary potential to a warming climate differs among oyster populations. We suggest that trade-offs in energy allocation are important to adaptive divergence with acetylation playing a role in energy depression under thermal stress.
2018-07-27 | PXD008057 | Pride
Project description:A fundamental problem in biology is the molecular basis for divergence among related organisms. We have investigated the level of divergence of transcription factor binding sites for two key factors that regulate developmental processes in the budding yeasts. The genomic binding locations for the Ste12 and Tec1 transcription factors in S. cerevisiae, S. mikatae and S. bayanus were mapped by chromatin immunoprecipitation combined with microarrays (chIP chip)1, 2 and compared to one another. While there was a large core network which was conserved in all three species, there were many instances of binding events whose relative levels differ significantly quantitatively in one species relative to another and as well as species-specific binding events. One interesting class of genes were identified that were bound only in S. mikatae and S. bayanus; many of these genes are targets of Ste12 in haploid strains of S. cerevisiae, suggesting that S. cerevisiae has uniquely acquired the ability to differentially regulate these genes in haploid and diploid cells in these species. To extend these studies, the transcriptional network for the Ste12 homologue (Cph1) in Candida albicans was also mapped and compared to the Saccharomyces species. Again, there were several genes bound by Cph1 which are involved in mating in S. cerevisiae, suggesting that the precise delineation between many mating and pseudohyphal targets by Ste12 may be specific to S. cerevisiae. Overall our results demonstrate that transcription binding sites differ faster than gene content indicating that gene regulation at the level of transcription factor binding is likely to be a major mode of evolutionary divergence between related species. We expect that this divergence is essential for the distinct ecological niches inhabited by these organisms. Keywords: chIP-chip
2007-09-06 | GSE5421 | GEO
Project description:Here we derive human and chimpanzee cranial neural crest cells (CNCCs) and profile histone modifications, transcription factors, chromatin accessibility and gene expression to systematically and quantitatively annotate evolutionary divergence of craniofacial cis-regulatory landscapes. Histone modifications (H3K27ac, H3K4me1, H3K4me3, H3K27me3), chromatin modifiers (p300), transcription factors (NR2F1, TFAP2A), chromatin accessibility (ATACseq) and gene expression (RNAseq) were assayed in CNCCs derived from iPSCs/ESCs from 2 chimpanzee and 3 human individuals.
2015-09-11 | E-GEOD-70751 | biostudies-arrayexpress
Project description:Regulatory divergence during mouse limb evolution
| PRJNA521487 | ENA