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Published on: April 30, 2014
Skeletal muscle specific genes networks in cattle
Natalia Moreno-Sánchez1, Julia Rueda, María J Carabaño
1Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra de A Coruña km 7.5, 28040 Madrid, Spain. natalia@inia.es
Functional & Integrative Genomics
|June 5, 2010
Summary
Beef cattle muscle gene expression differs between Psoas major (PM) and Flexor digitorum (FD). Gene coexpression networks reveal muscle-specific patterns, highlighting distinct functional roles and connectivity crucial for understanding skeletal muscle systems.
Area of Science:
- Molecular Biology
- Animal Genetics
- Biochemistry
Background:
- Skeletal muscle physiology varies, but the underlying differential gene expression and interactions remain poorly understood.
- Understanding gene expression patterns is key to elucidating muscle function and biological processes.
Purpose of the Study:
- To profile differential gene expression between Psoas major (PM) and Flexor digitorum (FD) muscles in beef cattle using cDNA microarrays.
- To interpret these findings within a bovine gene coexpression network to identify changes in skeletal muscle system connectivity.
Main Methods:
- Differential gene expression profiling using cDNA microarrays.
- Analysis of gene coexpression networks and correlation matrices.
- Interpretation of gene ontology and connectivity changes.
Main Results:
- Eighty-four differentially expressed genes (DEGs) were identified between PM and FD muscles.
- Metabolic enzymes and structural-contractile proteins constituted approximately 54% of DEGs.
- Distinct coexpression patterns were observed, with PM showing upregulation of metabolic and contractile genes, while FD highlighted cell support genes.
Conclusions:
- A muscle-dependent transcription and coexpression pattern exists in bovine skeletal muscle.
- Integrating different muscle types is necessary for comprehensive transcriptional landscape networks.
- Findings suggest distinct functional roles and connectivity within the skeletal muscle system.
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