Ontology highlight
ABSTRACT:
PROVIDER: PRJNA983846 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR24919642_1.fastq.gz | Fastqsanger.gz | |||
| SRR24919642_2.fastq.gz | Fastqsanger.gz | |||
| SRR24919643_1.fastq.gz | Fastqsanger.gz | |||
| SRR24919643_2.fastq.gz | Fastqsanger.gz | |||
| SRR24919644_1.fastq.gz | Fastqsanger.gz |
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Project description:Reproduction of queen conchs at nearshore sites in the Florida Keys is known to be impaired (Delgado et al. 2004). A recent microarray study of male queen conchs collected from the Florida Keys during the early part of the reproductive season (February, 2007) indicated that NS conchs show differences in expression of spermatogenesis-related and small GTPase signaling transcripts (Spade et al. 2010). The current study investigates gene expression in the digestive gland, which is closely associated with ovary, of female queen conchs from the same sampling effort in February, 2007.
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Project description:Reproduction of queen conchs at nearshore sites in the Florida Keys is known to be impaired (Delgado et al. 2004). A recent microarray study of male queen conchs collected from the Florida Keys during the early part of the reproductive season (February, 2007) indicated that NS conchs show differences in expression of spermatogenesis-related and small GTPase signaling transcripts (Spade et al. 2010). The current study investigates gene expression in the ovary of female queen conchs from the same sampling effort in February, 2007. One-color (Cy3) oligonucleotide array experiment. Each array sample is an individual biological replicate. The study includes four biological replicates offshore and three biological replicate nearshore. Offshore conchs exhibit normal reproduction, and so were considered the reference group in the analysis.
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Project description:Reproduction of queen conchs at nearshore sites in the Florida Keys is known to be impaired (Delgado et al. 2004). A recent microarray study of male queen conchs collected from the Florida Keys during the early part of the reproductive season (February, 2007) indicated that NS conchs show differences in expression of spermatogenesis-related and small GTPase signaling transcripts (Spade et al. 2010). The current study investigates gene expression in the digestive gland, which is closely associated with ovary, of female queen conchs from the same sampling effort in February, 2007. One-color (Cy3) oligonucleotide array experiment. Each array sample is an individual biological replicate. The study includes four biological replicates offshore and three biological and one technical replicate nearshore. Offshore conchs exhibit normal reproduction, and so were considered the reference group in the analysis.
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Project description:Despite a significant increase in genomic data, our knowledge of gene functions and their transcriptional responses to environmental stimuli remains limited. Here, we use the model keystone species Daphnia pulex to study environmental responses of genes in the context of their gene family history to better understand the relationship between genome structure and gene function in response to environmental stimuli. Daphnia were exposed to five different treatments, each consisting of a diet supplemented with one of five cyanobacterial species, and a control treatment consisting of a diet of only green algae. Differential gene expression profiles of Daphnia exposed to each of these five cyanobacterial species showed that genes with known functions are more likely to be shared by different expression profiles whereas genes specific to the lineage of Daphnia are more likely to be unique to a given expression profile. Furthermore, while only a small number of non-lineage specific genes was conserved across treatment type, there was a high degree of overlap in expression profiles at the functional level. The conservation of functional responses across the different cyanobacterial treatments can be attributed to the treatment specific expression of different paralogous genes within the same gene family. Comparison with available gene expression data in the literature suggests differences in nutritional composition in diets with cyanobacterial species compared to diets of green algae as a primary driver for cyanobacterial effects on Daphnia. We conclude that conserved functional responses in Daphnia across different cyanobacterial treatments are mediated through alternate regulation of paralogous gene families.
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