Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA130391 | ENA |
REPOSITORIES: ENA
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Project description:Human oocyte cDNA library was hybridized on a multi-species oocyte array (Bovine, Mouse, Frog) Temperature stringency criteria was used to evaluate the conservation degree of oocyte genes among vertebrates (Bovine, Mouse, Frog)
2010-12-15 | GSE23963 | GEO
Project description:Human oocyte cDNA library was hybridized on a multi-species oocyte array (Bovine, Mouse, Frog) Temperature stringency criteria was used to evaluate the conservation degree of oocyte genes among vertebrates (Bovine, Mouse, Frog) 2 technical replicates on distinct array were made at each pre-determined hybridization temperature (45°C, 50°C, 55°C), overall, the experiment includes 6 arrays
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Project description:Defining totipotency using criteria of increasing stringency
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Project description:Totipotency is the ability of a single cell to give rise to all the differentiated cells that build the conceptus, yet how to capture this property in vitro remains incompletely understood. Defining totipotency relies upon a variety of assays of variable stringency. Here we describe criteria to define totipotency. We illustrate how distinct criteria of increasing stringency can be used to judge totipotency by evaluating candidate totipotent cell types in the mouse, including early blastomeres and expanded or extended pluripotent stem cells. Our data challenge the notion that expanded or extended pluripotent states harbor increased totipotent potential relative to conventional embryonic stem cells under in vivo conditions.
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Project description:SNP discovery in E. grandis via a multi-genotype cDNA library
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Project description:The aim of this study is the identification of genes and gene networks involved in pig ovarian follicular development. cDNA nylon micro-arrays (2849 sequenced clones) were designed from different libraries : four subtractive suppressive hybridization libraries (generated from small versus large and small versus medium follicles) and a pig multi-tissue cDNA library. Granulosa cells were isolated from healthy follicles (small, medium or large), 24 h or 96 h after the end of a progestagen treatment. The RNA isolated from these cells was used to hybridize the micro-arrays and hybridisations were performed in duplicate. The images were quantified using Bzscan software and the data were managed with BASE software. Statistical analysis was performed using R software. Keywords: cell type comparison
2008-04-30 | GSE5798 | GEO
Project description:Screening cDNA clones from SSH library by hybridization with cDNA used to construct the library. Treated samples were drought-stressed cowpea plants, and control samples were cowpea plants subjected to a standard watering regime. cDNA clones from forward and reverse libraries are spotted on the same array, but data from each library were analysed separately after normalization using SSHscreen software (http://microarray.up.ac.za/SSHscreen ) to calculate Enrichment Ratio 3 (ER3) and Enrichment Ratio 2 (ER2) values for each clone. ER3 is a measure of differential expression, and was determined using a set of hybridizations with unsubtracted treated (UT) and unsubtracted control (UC) cDNA. ER2 is a measure of the relative abundance of a clone's transcript in the original tester sample, relative to other transcripts in the sample prior to the SSH process. ER2 for the forward library was determined using a set of hybridizations with subtracted treated (ST) and unsubtracted treated (UT) cDNA. ER2 for the reverse library is determined using a set of hybridizations with subtracted control (SC) and unsubtracted control (UC) cDNA.
2010-03-22 | GSE20273 | GEO
Project description:Proteomics data from a combind transcriptome/proteome study of three sexually deceptive orchids of the genus Ophrys. Data are from labella of mature, unpollinated flowers of (1) Ophrys exaltata subsp. archipelagi, (2) O. sphegodes, and (3) O. garganica. Proteomics data were searched against SwissProt and TAIR databases and further against organism-specific databases obtained from transcriptome sequencing (454, Sanger ESTs and Solexa data). Thirteen trypsinised gel slices per sample were subjected to electrospray ionisation-based LC-MS/MS analysis with a 2D linear ion trap Finnigan LTQ (Thermo Electron Corporation) equipped with an Ultimate Nano HPLC System (Dionex Corporation). Mass spectra were searched against SwissProt and Arabidopsis TAIR9 protein databases to identify peptides. Additionally, spectra were searched against protein databases created from the Ophrys reference transcriptome obtained in this study. Stringent criteria were used for the assignment of spectra to peptides (95% peptide identification probability) in Scaffold 3.3 (Proteome Software Inc., USA). In order to maximise the utility of proteomics data for uncovering proteins predicted by the orchid transcriptome, a minimum of one unique peptide was used for protein identification, while using two different stringency levels for the probabilistic assignment of peptides to proteins (99% for highest quality, HQ; 90% to maximise protein discovery, PD, in the absence of a fully sequenced genome). Concerning the sequencing and transcriptomics results: Three normalised cDNA libraries were constructed from three different Ophrys species, O. exaltata, O. garganica, and O. sphegodes. These libraries were 454 pyrosequenced and all the high quality reads generated in this study are available in the Sequence Read Archive (SRA) of the National Centre for Biotechnology Information (NCBI) with the accession number SRA060767. Additional sequencing of O. sphegodes flower labella yielded 1.7 Mbp of Sanger (dbEST library LIBEST_028084; dbEST IDs 77978749-77979571; GenBank accessions JZ163765-JZ164587) and 2.5 Gbp of Illumina Solexa (SRA060767) data.
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