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Dehong chicken blood samples: Control vs. 6 chicken blood samples belonging to 3 different breeds

ABSTRACT: Copy number variation profiles comparing control female Dehong chicken blood DNA with 3 different chicken breeds (white Leghorn, Cobb broiler, and Dou chicken) blood DNA. Each test breed had one male and one female sample, for a total of 6 test DNA samples. The goal is to determine the global copy number variation profiles between chicken breeds.

ORGANISM(S): Gallus gallus

PROVIDER: GSE28526 | GEO | 2011/04/12

SECONDARY ACCESSION(S): PRJNA139081

REPOSITORIES: GEO

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Dehong chicken blood samples: Control vs. 6 chicken blood samples belonging to 3 different breeds

Project description:Copy number variation profiles comparing control female Dehong chicken blood DNA with 3 different chicken breeds (white Leghorn, Cobb broiler, and Dou chicken) blood DNA. Each test breed had one male and one female sample, for a total of 6 test DNA samples. The goal is to determine the global copy number variation profiles between chicken breeds. Female Dehong chicken DNA as reference DNA vs. 6 test chicken DNA samples.

2011-04-12 | E-GEOD-28526 | biostudies-arrayexpress

Dehong chicken blood samples vs. 22 different chicken blood samples belonging to 11 breeds

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2015-03-13 | GSE36504 | GEO

Affymetrix SNP array data for chicken samples

Project description:The conservation and development of chicken has considerably affected human activities, but the admixture history of chicken breeds has so far been poorly demonstrated especially for Chinese indigenous breeds. Using genotypes from 580961 single nucleotide polymorphism markers scored in 1201 animals, we evaluate the genetic diversity (heterozygosity and proportion of polymorphic markers), Linkage disequilibrium (LD) decay, population structure (principal component analysis and neighbor-joining tree), genetic differentiation (FST and genetic distance) and migration events (Treemix and f-statistics) of eight domesticated chicken breeds. All population analytical methods reveal patterns of hybridization which occurred after divergence in Tibetan chicken. We argue that chicken migration and admixture followed by trade have been important forces in shaping modern Chinese chicken genomic variation. Moreover, isolation by distance may play critical role in the shaping genomic variation within Eurasia continent chicken breeds.

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Dehong chicken blood samples vs. 22 different chicken blood samples belonging to 11 breeds

Project description:Dehong chicken blood samples vs. 22 different chicken blood samples belonging to 11 breeds

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Single-cell RNA sequencing of the spleen reveals differences in the mechanisms of resistance to bacterial infection between different chicken breeds

Project description:Bacterial infections remain an important cause of morbidity in poultry production. The molecular characteristics and dynamic changes in immune cell populations after bacterial infection have yet to be fully understood. Beijing-You chicken and Cobb broiler, two broiler breeds with different disease resistance, were infected with Salmonella typhimurium, and inflammation models were constructed. We characterized chicken spleen CD45+ immune cells by single-cell RNA sequencing.

2023-10-01 | GSE242458 | GEO

Large scale variation in copy number in chicken breeds

Project description:Background: Detecting genetic variation is a critical step in elucidating the molecular mechanisms underlying phenotypic diversity. Until recently, such detection has mostly focused on single nucleotide polymorphisms (SNPs) because of the ease in screening complete genomes. Another type of variant, copy number variation (CNV), is emerging as a significant contributor to phenotypic variation in many species. Here we describe a genome-wide CNV study using array comparative genomic hybridization (aCGH) in a wide variety of chicken breeds. Results: We identified 3,154 CNVs, grouped into 1,556 CNV regions (CNVRs). Thirty percent of the CNVs were detected in at least 2 individuals. The average size of the CNVs detected was 46.3 kb with the largest CNV, located on GGAZ, being 4.3 Mb. Approximately 75% of the CNVs are copy number losses relatively to the Red Jungle Fowl reference genome. The genome coverage of CNVRs in this study is 60 Mb, which represents almost 5.4% of the chicken genome. In particular large gene families such as the keratin gene family and the MHC show extensive CNV. Conclusions: A relative large group of the CNVs are line-specific, several of which were previously shown to be related to the causative mutation for a number of phenotypic variants. The chance that inter-specific CNVs fall into CNVRs detected in chicken is related to the evolutionary distance between the species. Our results provide a valuable resource for the study of genetic and phenotypic variation in this phenotypically diverse species. In total 62 chicken DNA samples (derived from 15 lines) were analyzed against the chicken reference animal UCD001 (the same induvidual that was used to generate the chicken genome reference sequence (ICGSC, 2004)

2013-08-21 | E-GEOD-47623 | biostudies-arrayexpress

Transcription profiling of chicken embryonic hears from Tibetan Chicken, Dwarf Recessive White Chicken and Shouguang Chicken

Project description:Adaptation to hypoxia is a complicated and important physiological course for organisms, but the genetic mechanism underlying the adaptation is not fully understood yet. Tibetan Chicken (T), an indigenous chicken breed in China which inhabit in high areas with an altitude above 2,900 meters. Shouguang Chicken(S) and Dwarf Recessive White Chicken (DRW), two lowland chicken breeds, were used as control groups. The heart was the first functional organ to develop during the embryonic development. Furthermore, the heart is an efficient energy converter utilizing the most appropriate fuel for a given environment. Therefore, GeneChipÂ® Chicken Genome Array was employed to identify the differentially expressed genes in embryonic hearts of Tibetan Chicken and two lowland chicken breeds in both hypoxic and normoxic incubating environments with a genome wide profile. Experiment Overall Design: To obtain general expression profiles of embryonic hearts in Tibetan Chicken(T), Dwarf Recessive White Chicken (DRW)and Shouguang Chicken (S)in hypoxia and normoxia, the fertilized full sib eggs of all the three chicken breeds were incubated under two different conditions. The heart was isolated from all the three chicken breeds under the two different conditions for RNA extraction and hybridization on Affymetrix microarrays.

2009-09-17 | E-GEOD-12675 | biostudies-arrayexpress

Large scale variation in copy number in chicken breeds

2013-08-21 | GSE47623 | GEO

Hypoxia effect on embryonic hearts of Tibetan Chicken, Dwarf Recessive White Chicken and Shouguang Chicken

2009-09-05 | GSE12675 | GEO

Identification of differentially expressed genes and pathways for myofiber characteristics in soleus and extensor digitorum longus muscles between chicken breeds differing in meat quality

Project description:In the modern chicken industry, fast-growing broilers have undergone strong artificial selection for muscle growth, which has led to remarkable phenotypic variations compared with slow-growing chickens. However, the molecular mechanism underlying these phenotypes differences remains unknown. In this study, a systematic identification of candidate genes and new pathways related to myofiber development and composition in chicken Soleus muscle has been made using gene expression profiles of two distinct breeds: Qingyuan partridge (QY), a slow-growing Chinese breed possessing high meat quality and Cobb 500 (CB), a commercial fast-growing broiler line. Agilent cDNA microarray analyses were conducted to determine gene expression profiles of soleus and extensor digitorum longus muscle sampled at sexual maturity age of QY (112 d) and CB (42 d).

2017-06-16 | GSE69918 | GEO

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