Ontology highlight
ABSTRACT:
PROVIDER: PRJNA947933 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Purpose: To identify the key regulatory genes and pathways involved in chicken high egg productivon in HPG axis. Methods: A total of 856 Chinese Luhua chicken was raised in poultry breeding farm of Sichuan Agricultural University, the highest two hundred and the lowest two hundred chicken egg production were considered as high egg production (HEP) and low egg production (LEP) according to the total egg number at 300 days of age, respectively, integrated with RNA-seq sequencing of samples of HPG axis (hypothalamus, pituitary gland and ovary) from three HEP and three LEP chickens at 300 days of age. Results: A total 86.7 Gb RNA-seq sequences were generated, and with each library averaged 5.1 Gb. Conclusions: These important data might improve our understanding of reproductive biology of Luhua chicken by providing comprehensive gene expression information at transcriptional level. We indicate that our approach will contribute to the isolation of effective molecular markers that can be used in genetic breeding programs in Chinese domestic Luhua chicken.
2019-12-07 | GSE141588 | GEO
Project description:Dongxiang blue-shelled chicken, an indigenous chicken breed in China, has segregated significantly for the dermal hyperpigmentation phenotype. Two lines of the chicken have been divergently selected with respect to comb color for over 20 generations. The recent selection has also resulted in a significant difference in egg production. The red comb line (RCL) chicken produces significantly higher number of eggs than that by the dark comb line (DCL) chicken. The objective of this study was to explore potential mechanisms involved in the relationship between comb color and egg production among chickens. We performed genome-wide association study to identify candidate genes associated with chicken comb color using SNP array data, and we conducted selective sweep analysis to identify putative regions of selection harboring pleiotropic genes affecting both comb color and egg production.
2019-06-04 | GSE124906 | GEO
Project description:Comparative analysis of gene expression profiles in newly developed housing systems is important to understand gene functions in chicken for adaptation and possible gene-environment interactions among layer lines. Therefore, the objective of this study was to characterize the molecular processes that are different among the two layer lines Lohmann Selected Leghorn (LSL) and Lohmann Brown (LB) using whole genome RNA expression profiles. Despite their approximately identical egg production performance these layer lines differ markedly in other phenotypic traits. The two layer lines were kept under the production environment of the newly developed small group housing system Eurovent German with two different group sizes and three tiers. We used a chicken RNA microarray to identify differentially expressed genes among the two layer lines LSL and LB.
2012-09-12 | E-GEOD-40802 | biostudies-arrayexpress
Project description:Comparative analysis of gene expression profiles in newly developed housing systems is important to understand gene functions in chicken for adaptation and possible gene-environment interactions among layer lines. Therefore, the objective of this study was to characterize the molecular processes that are different among the two layer lines Lohmann Selected Leghorn (LSL) and Lohmann Brown (LB) using whole genome RNA expression profiles. Despite their approximately identical egg production performance these layer lines differ markedly in other phenotypic traits. The two layer lines were kept under the production environment of the newly developed small group housing system Eurovent German with two different group sizes and three tiers.
2012-09-12 | GSE40802 | GEO
Project description:Feather pecking is a major welfare problem in egg production. It may be caused by genetic, physiological and environmental factors. The main aim of this study was to uncover variability in gene expression between individuals from high (HFP) and for low feather pecking (LFP) line using Chicken Gene Expression Microarrays (Agilent Technologies).
2012-03-17 | GSE36559 | GEO
Project description:The egg teeth of chicken of the developmental stage 36 according to Hamburger and Hamilton (about 10 days of egg incubation at 37 °C) were sampled to investigate the protein composition of the egg tooth.
2024-05-21 | PXD048875 | Pride
Project description:Vertebrate oocytes are coated with a special extracellular matrix termed egg-coat or Zona pellucida (ZP). Egg-coat is constituted by several ZP glycoproteins. In chicken fertilization, ejaculated sperm releases enzyme(s) to solubilize the ZP glycoprotein(s) for penetrating the egg-coat. In this study, we analyzed the solubilized ZP glycoprotein fragment. We also analyzed the glycosylation property of its fragment.
2019-08-01 | PXD013994 | JPOST Repository