Sus scrofa strain:Large white, Landrace, Diannan small ear pig, Tibetan pig
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ABSTRACT:
PROVIDER: PRJNA244634 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The objective of this study was to identify key genes associated with porcine muscle growth and adipose metabolism which different expression in porcine longissimus dorsi muscle tissue among Tibetan Pig, Taihu Pig and Landrace(Month 2), among developmental phases of Tibetan Pig (Month 2,4,6,8). The gene expression analyses will increase understanding of impact factors of pork quality by identifying key genes and pathways controlling longissimus dorsi muscle development. Relative real-time RT-PCR was used to confirm differential expression of 5 different expression genes(PPARGC1A, RYR1, IGF2, IGF1R and IGFBP5) which normalized by 3 housekeep genes(ACTB, TBP and TOP2B). Keywords: breed comparison and time course
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2016-06-23 | E-GEOD-70673 | biostudies-arrayexpress
Project description:The experiment aimed at studying gene expression differences in longissimus dorsi muscle from pigs from two groups: High versus low intramuscular fat (IMF). The animals were selected from a crossbred population of Landrace x Yorkshire/Landrace x Duroc animals, where we have previously found a highly significant QTL for IMF (Grindflek et al. 2001: "Detection of quantitative trait loci for meat quality in a commercial slaughter pig cross", Mammalian Genome 12(4): 299-304), and by microarray analysis we hoped to identify candidate genes for the QTL and/or pathways that are affected by the genes responsible for the QTL. Keywords: phenotype comparison
2013-01-01 | GSE12927 | GEO
Project description:The experiment aimed at studying gene expression differences in longissimus dorsi muscle from pigs from two groups: High versus low intramuscular fat (IMF). The animals were selected from a crossbred population of Landrace x Yorkshire/Landrace x Duroc animals, where we have previously found a highly significant QTL for IMF (Grindflek et al. 2001: "Detection of quantitative trait loci for meat quality in a commercial slaughter pig cross", Mammalian Genome 12(4): 299-304), and by microarray analysis we hoped to identify candidate genes for the QTL and/or pathways that are affected by the genes responsible for the QTL. Keywords: phenotype comparison Direct dye-swap design, with 14 animals in each group (high IMF and low IMF) on 14 separate arrays
2013-01-01 | E-GEOD-12927 | biostudies-arrayexpress
Project description:To further characterize genomic regions previously identified which are linked with meat quality traits like drip loss, PH, conductivity and etc., we employed a customary regional tiling array experiment for two pig populations. Total RNA were taken from muscle sample of M. longissimus dorsi of pigs selected from two phenotypic groups graded according to high (HI) and low (LO) drip loss. Hybridization were made in batches, 2 to 3 biological replicates for each sample. DuPi and PiF1 are code names for the two experimental populations. Total RNA were taken from muscle sample of M. longissimus dorsi of pigs selected from two phenotypic groups graded according to high (HI) and low (LO) drip loss. Hybridization were made in batches, 2 to 3 biological replicates for each sample.
2014-04-01 | E-GEOD-50846 | biostudies-arrayexpress
Project description:To further characterize genomic regions previously identified which are linked with meat quality traits like drip loss, PH, conductivity and etc., we employed a customary regional tiling array experiment for two pig populations. Total RNA were taken from muscle sample of M. longissimus dorsi of pigs selected from two phenotypic groups graded according to high (HI) and low (LO) drip loss. Hybridization were made in batches, 2 to 3 biological replicates for each sample. DuPi and PiF1 are code names for the two experimental populations. Total RNA were taken from muscle sample of M. longissimus dorsi of pigs selected from two phenotypic groups graded according to high (HI) and low (LO) drip loss. Hybridization were made in batches, 2 to 3 biological replicates for each sample.
2014-04-01 | E-GEOD-52383 | biostudies-arrayexpress
Project description:The aim of this study was to identify differentially expressed genes and pathways in longissimus dorsi (LD) of pigs at 40 and 70 d of gestation (stages encompassing the transition from primary to secondary fiber formation) in U.S. commercial crossbred pigs (Yorkshire x Landrace) and Brazilian native Piau pigs. We confirmed the expression patterns for a subset of genes by qRT-PCR. Pathway analysis revealed functionally related genes, and indicated commonalities and differences between the breed types and developmental ages evaluated. Results from qRT-PCR analysis confirmed the expression patterns observed on the array for most of the genes tested (85%). This study reveals transcriptional profiles in LD at 40 and 70 d gestation for commercial and Piau pigs, which helps elucidate phenotypic differences between these breed types.
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Project description:The integration of the results of QTL fine-mapping with microarray expression data offers a promising tool for understanding the genetic mechanisms influencing complex traits as fatty acid composition in pigs. The expression level of each probe may be treated as a quantitative trait and the marker genotypes used to map loci with regulatory effect on the gene expression level (eQTL) According to our previous linkage results, we carry out an eQTL scan focused on chromosomal regions showing tissue-consistent effects on fatty acids with Longissimus dorsi gene expression data in order to detect potentional candidate genes underlying the QTL previously detected. 102 IberianxLandrace backcross pigs were selected for RNA extraction and hybridization on Affymetrix microarrays. An eQTL scan was carried out with the data of 470 probes of the microarray taking into account they were related with fatty acid metabolism
2013-11-22 | E-GEOD-52626 | biostudies-arrayexpress
Project description:The integration of the results of QTL fine-mapping with microarray expression data offers a promising tool for understanding the genetic mechanisms influencing complex traits as fatty acid composition in pigs. The expression level of each probe may be treated as a quantitative trait and the marker genotypes used to map loci with regulatory effect on the gene expression level (eQTL) According to our previous linkage results, we carry out an eQTL scan focused on chromosomal regions showing tissue-consistent effects on fatty acids with Longissimus dorsi gene expression data in order to detect potentional candidate genes underlying the QTL previously detected.
2013-11-22 | GSE52626 | GEO
Project description:The aim of this study was to identify differentially expressed genes and pathways in longissimus dorsi (LD) of pigs at 40 and 70 d of gestation (stages encompassing the transition from primary to secondary fiber formation) in U.S. commercial crossbred pigs (Yorkshire x Landrace) and Brazilian native Piau pigs. We confirmed the expression patterns for a subset of genes by qRT-PCR. Pathway analysis revealed functionally related genes, and indicated commonalities and differences between the breed types and developmental ages evaluated. Results from qRT-PCR analysis confirmed the expression patterns observed on the array for most of the genes tested (85%). This study reveals transcriptional profiles in LD at 40 and 70 d gestation for commercial and Piau pigs, which helps elucidate phenotypic differences between these breed types. This study utilized the Swine Protein-Annotated Oligonucleotide Microarray which contains 20,400 70-mer oligonucleotides (http://www.pigoligoarray.org). Total RNA was isolated from fetuses obtained from gilts at each gestational age (n=3 crossbred gilts; n=4 Piau gilts) and RNA from 3 fetuses per litter was pooled. Samples were evaluated with a connected loop design using 13 slides such that six breed comparisons and seven age comparisons were performed. Fluorescence intensity data was LOESS normalized and analyzed with a mixed model.
2010-04-22 | E-GEOD-21412 | biostudies-arrayexpress