Ontology highlight
ABSTRACT:
PROVIDER: PRJNA556912 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR9847870_1.fastq.gz | Fastqsanger.gz | |||
| SRR9847870_2.fastq.gz | Fastqsanger.gz | |||
| SRR9847871_1.fastq.gz | Fastqsanger.gz | |||
| SRR9847871_2.fastq.gz | Fastqsanger.gz | |||
| SRR9847872_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 18 |
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Project description:The feather follicle is a “professional” regenerative organ that undergoes natural cycling and, regeneration after wound plucking. Similar to mammalian hair follicle, dermal papilla (DP) controls feather regeneration, shape, size, and axis. Here we report gene expression profiling for feather DP at different growth stages. For growth phase, we compared gene expression of DP, the ramogenic zone of feather branching epithelium (Erz) and the mesenchymal pulp (Pp). We also compared gene expression of DP at resting phase. To characterize the feather regeneration process, we further profiled gene expression at Day-2 and Day-4 post wound. Our results provide a resource for investigating feather growth and regeneration. Examination of gene expression in dermal papilla (DP) at growth phase and resting phase feather follicle, and during feather regeneration.
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Project description:Transcriptome profiles of skin and feather follicle from two body parts at three physiological stages were constructed to understand the molecular network and excavate the candidate genes associated with the plumulaceous and flight feathers structure. The key series-clusters, many candidate biological processes and genes were identified for the morphogenesis, growth and development of two feather types. Through comparing the results of developmental transcritpomes from plumulaceous and flight feather, we found that DEGs belonging to the family of WNT, FGF and BMP have certain differences; even the consistent DEGs of skin and feather follicle transcriptomes from abdomen and wing have the different expression patterns.
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Project description:The feather follicle is a “professional” regenerative organ that undergoes natural cycling and, regeneration after wound plucking. Similar to mammalian hair follicle, dermal papilla (DP) controls feather regeneration, shape, size, and axis. Here we report gene expression profiling for feather DP at different growth stages. For growth phase, we compared gene expression of DP, the ramogenic zone of feather branching epithelium (Erz) and the mesenchymal pulp (Pp). We also compared gene expression of DP at resting phase. To characterize the feather regeneration process, we further profiled gene expression at Day-2 and Day-4 post wound. Our results provide a resource for investigating feather growth and regeneration.
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Project description:Feather evolution enabled feathered dinosaurs and early Mesozoic birds to venture into new ecological niches. Studying how feathers and scales are specified provides insight into how a new organ evolves. We use genome-wide analyses to identify feather-associated genes and test their feather-forming ability by expressing them in chicken and alligator scales. Intermediate morphotypes revealed five cardinal morphogenetic events: localized growth zone, follicle invagination, branching, feather keratin differentiation and dermal papilla formation. In contrast to molecules known to induce feathers on scales (retinoic acid, beta-catenin), we identify novel scale-feather converters (Sox2, Zic1, Grem1, Spry2, Sox18) which induce only one or several of the five regulatory modules. Some morphotypes resemble filamentous appendages found in feathered dinosaur fossils, while others demonstrate some characteristics of modern feathers. We propose that at least five morpho-regulatory modules were used to diversify ancient reptile scales. The regulatory combination and hierarchical integration led to extant feather forms.
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Project description:Regeneration is one of the key factors affecting downy feather production. However, the signals and molecular controlling the progression of feather regeneration was poorly understood. We used a high density microarray to profile the temporal transcriptome dynamics during the regeneration periods. A total of 3540 genes expressed differentially with significant fold changes during feather regeneration. Cluster analysis revealed event specific dynamic expression of genes related to cell cycling, cell migration, cell proliferation, follicle re-growth and fiber elongation. These clusters involved functional clusters like regulation of actin cytoskeleton, focal adhesion and sphingolipid metabolism, and enriched signaling pathways like Wnt signaling pathway, MAPK pathway and TGFβ signaling pathway. In cell cycling, mainly involved genes were cyclin B3, cyclin Y. In TGFβ signaling pathway, mainly involved genes were TGFβ3, BMP7, NOG and BMP2. While Wnt5a, Wnt10a, FZD2, and FZD10 were involved in canonical Wnt/β-catenin pathway. Our study provides a comprehensive genetic blue print of diverse cellular responses during regeneraton of goose feather. The data provide an initial step towards a better understanding of molecular mechanisms underlying feather regeneration process and also suggest that signals or molecular participated in feather regeneration was quite different from the generation of hair in mammals.
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