Oil Sand Pit Lake
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA552483 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR10201515_1.fastq.gz | Fastqsanger.gz | |||
| SRR10201515_2.fastq.gz | Fastqsanger.gz | |||
| SRR10201516_1.fastq.gz | Fastqsanger.gz | |||
| SRR10201516_2.fastq.gz | Fastqsanger.gz | |||
| SRR10201517_1.fastq.gz | Fastqsanger.gz |
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Project description:We sought to evaluate the brain gene expression profiles of male courtship display. To assess male display and courtship behavior, we designed a courtship preference assay. We evaluated social interactions between males and females using a 40 gallon tank design with a ‘rock’ habitat at one end and ‘sand’ at the other, separated by glass bottom. When parental rock species (Petrotilapia nigra (TaxId 526958), Maylandia zebra (TaxId 106582), Labeotropheus feulliborni) are placed in this tank paradigm, males court females over the rocks. Males of sand species (Mchenga conophorus, Aulonocara baenschi (TaxId 143496), Tramitichromis intermedius (TaxId 323801)) court females over sand and construct species appropriate bowers. When single rock x sand F1 males were placed in this set up with F1 females, males invariably courted females over the ‘rock’ habitat, suggesting genetic dominance. When two rock x sand F1 males were allowed to compete for F1 females in this tank paradigm, something interesting happened. One male, typically the larger, courted females over the rock habitat, and the other simultaneously constructed bowers to court females in the sand. We detected no difference in GSI (gonadal somatic index) between F1 males behaving as ‘socially rock’ vs. ‘socially sand.’ This observation of divergent behavior among interacting F1 brothers suggests an interaction between the genome and the social environment in these males.
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Project description:Most behaviors are associated with heritable genetic variation. Genetic mapping has revealed genomic regions or, in a few cases, specific genes explaining part of this variation. However, understanding how genetic divergence shapes behavioral evolution remains unclear. Here we analyze the evolution of an innate extended phenotype: bower building among male cichlid fish of Lake Malawi, which build bowers of two types, pits and castles. F1 hybrids of pit-digging and castle-building species perform sequential construction of first pit and then castle bowers. Analysis of brain gene expression in these hybrids showed that genes near behavior-associated variants display behavior-dependent allele-specific expression with preferential expression of the pit-species allele during pit digging, and of the castle-species allele during castle building. These genes are highly enriched for functions and pathways involved in neurodevelopment and neural plasticity. Our results suggest that natural behaviors can be associated with complex genetic architectures that alter behavior via cis-regulatory differences whose effects on gene expression are specific to the behavior itself.
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Project description:The aim of the study is to evaluate Pit-1-induced genes in the MCF-7 cell line The Pit-1 transcription factor (also known as POU1F1) plays a critical role in cell differentiation during organogenesis of the anterior pituitary in mammals and is a transcriptional activator for pituitary gene transcription. Increased expression of Pit-1 has been reported in human tumorigenic breast cells. Here, we found that Pit-1 overexpression or knockdown in human breast cancer cell lines induced profound phenotypic changes in the expression of proteins involved in cell proliferation, apoptosis, and invasion. In immunodeficient mice, Pit-1 overexpression induced tumoral growth and promoted metastasis in lung. In patients with invasive ductal carcinoma of the breast and node-positive tumors elevated expression of Pit-1 was significantly and independently associated with the occurrence of distant metastasis. These findings suggest that Pit-1 could help to make a more accurate prognosis in patients with node positive breast cancer and may represent a new therapeutic target (Journal of Clinical Investigation 2010, 120:4289-4302)
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Project description:The yeast strain Moniliella spathulata SBUG-Y 2180 was isolated from oil-contaminated soil at the Tengiz oil field in the Atyrau region of Kazakhstan on the basis of its unique ability to use crude oil and its components as the sole carbon and energy source. This yeast used a large number of hydrocarbons as substrates (more than 150), including n-alkanes with chain lengths ranging from C10 to C32, monomethyl- and monoethyl-substituted alkanes (C9 – C23), n-alkylcyclo alkanes with alkyl chain lengths from 3 to 24 carbon atoms as well as substituted monoaromatic and diaromatic hydrocarbons. Metabolism of this huge range of hydrocarbon substrates produced a very large number of aliphatic, alicyclic and aromatic acids. 51 of these were identified by GC/MS analyses. This is the first report of the degradation and of the formation of such a large number of compounds by a yeast. Inoculation of barley seeds with M. spathulata SBUG-Y 2180 had a positive effect on shoot and root development of plants grown in oil-contaminated sand, pointing towards potential applications of the yeast in bioremediation of polluted soils.
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Project description:The aim of the study is to evaluate Pit-1-induced genes in the MCF-7 cell line The Pit-1 transcription factor (also known as POU1F1) plays a critical role in cell differentiation during organogenesis of the anterior pituitary in mammals and is a transcriptional activator for pituitary gene transcription. Increased expression of Pit-1 has been reported in human tumorigenic breast cells. Here, we found that Pit-1 overexpression or knockdown in human breast cancer cell lines induced profound phenotypic changes in the expression of proteins involved in cell proliferation, apoptosis, and invasion. In immunodeficient mice, Pit-1 overexpression induced tumoral growth and promoted metastasis in lung. In patients with invasive ductal carcinoma of the breast and node-positive tumors elevated expression of Pit-1 was significantly and independently associated with the occurrence of distant metastasis. These findings suggest that Pit-1 could help to make a more accurate prognosis in patients with node positive breast cancer and may represent a new therapeutic target (Journal of Clinical Investigation 2010, 120:4289-4302) MCF-7 cells were transfected with the pcDNA3 (control, two samples as condition, named C1 and C2) or the pcDNA3-Pit-1 overexpression vector (two samples as condition, named 1+ and 2+) for 48 hours.
2014-12-12 | E-GEOD-64101 | biostudies-arrayexpress