Neotoma lepida
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA188250 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR711419.fastq.gz | Fastqsanger.gz | |||
| SRR711420.fastq.gz | Fastqsanger.gz | |||
| SRR711421.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 3 of 3 |
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Project description:We present the de novo transcriptome sequencing, analysis and microarray development for a vertebrate herbivore, the woodrat (Neotoma spp.). This genus is of ecological and evolutionary interest, especially with respect to ingestion and hepatic metabolism of potentially toxic plant secondary compounds. We generated a liver transcriptome of the desert woodrat (Neotoma lepida) with the Roche 454 platform. The assembled contigs were well annotated using rodent references (99.7% annotation), and biotransformation function was reflected in the gene ontology. The transcriptome was used to develop a custom microarray (eArray, Agilent). To compare the effect of native diet/habitat and phylogenetic similarity, we performed 3 experiments with the Neotoma probes only: one across species with similar habitat niches (N. lepida versus N. bryanti, Palm Springs), one across species with different habitat niches (N. lepida versus N. bryanti, Caspers Wilderness), and one across populations within a species (N. bryant Palm Springs versus Caspers Wilderness). The resulting one-color arrays had high technical and biological quality. Probes designed from the woodrat transcriptome performed significantly better than functionally similar probes from the Norway rat (Rattus norvegicus). Biotransformation processes and functions were highly represented in the results. Comparisons between ecologically similar woodrat species revealed fewer gene expression differences than ecologically different woodrat species. The conspecific comparison had overall fewest differences. Gene expression was compared across 3 groups of woodrats: Neotoma lepida (n=4), N. bryanti Palm Springs (n=4), and N. bryanti Caspers Wilderness (n=4). Animals were fed a rabbit chow diet, called control; intake was monitored over 10 days, after which RNA was extracted from hepatic tissue. One-color arrays were performed.
2013-07-30 | E-GEOD-43941 | biostudies-arrayexpress
Project description:We present the de novo transcriptome sequencing, analysis and microarray development for a vertebrate herbivore, the woodrat (Neotoma spp.). This genus is of ecological and evolutionary interest, especially with respect to ingestion and hepatic metabolism of potentially toxic plant secondary compounds. We generated a liver transcriptome of the desert woodrat (Neotoma lepida) with the Roche 454 platform. The assembled contigs were well annotated using rodent references (99.7% annotation), and biotransformation function was reflected in the gene ontology. The transcriptome was used to develop a custom microarray (eArray, Agilent). To compare the effect of native diet/habitat and phylogenetic similarity, we performed 3 experiments with the Neotoma probes only: one across species with similar habitat niches (N. lepida versus N. bryanti, Palm Springs), one across species with different habitat niches (N. lepida versus N. bryanti, Caspers Wilderness), and one across populations within a species (N. bryant Palm Springs versus Caspers Wilderness). The resulting one-color arrays had high technical and biological quality. Probes designed from the woodrat transcriptome performed significantly better than functionally similar probes from the Norway rat (Rattus norvegicus). Biotransformation processes and functions were highly represented in the results. Comparisons between ecologically similar woodrat species revealed fewer gene expression differences than ecologically different woodrat species. The conspecific comparison had overall fewest differences.
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Project description:The effects of ambient temperature and dietary plant toxins on differential gene expression in the liver were compared in herbivorous rodents (woodrats, genus Neotoma) using microarrays custom-designed for woodrats. Expression profiles revealed a greater number of up-egulated genes at 22C comapred to a thermoneutral temperature (27C). Genes and pathways up-regulated at 22C were related to growth and biosynthesis, suggesting the liver could be in a building state at this temperature. Conversely, genes associated with gluconeogenesis, apoptosis and protein misfolding, which likely reflected a more stressed state for the liver. Taken together, these results highlighted the important role of temperature on gene expression profiles in the desert woodrat. As crucial players in many ecosystems, understanding how herbivorous mammals will respond to climate change is imperative to accurately predict repercussions and aid in conservation efforts.
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Project description:Hepatic Gene Expression in woodrats on Creosote and Juniper Diets with distinct Plant Secondary Compounds
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