Related Experiment Video
Updated: Jan 21, 2026

Leveraging CyVerse Resources for De Novo Comparative Transcriptomics of Underserved Non-model Organisms
Published on: May 9, 2017
Comparative transcriptomics to reveal muscle-specific molecular differences in the early postmortem of Chinese
Qianqian Yu1, Xiaojing Tian1, Chengfeng Sun2
1College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, PR China; Beijing Higher Institution Engineering Research Center of Animal Product, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, PR China.
Abstract:
Differences in the expression of functional genes between beef Longissimus Lumborum (LL) and Psoas Major (PM) are not well understood. The aim of present study is to reveal transcriptome changes of beef LL and PM during early postmortem by high-throughput Illumina Hiseq4000 Sequencing. Hierarchical clustering analysis indicated significant differences in transcriptome profiles between LL and PM as well as 1 h and 12 h postmortem. A total of 65 genes differentially expressed between LL and PM (fold change ≥3, and p < 0.05; 34 were up-regulated in LL and 31 in PM), and the majority of them (53 genes) occurred at 12 h postmortem. These differentially expressed genes mainly involved in energy production and conversion, nucleotide metabolic, posttranslational modification, and transcription. KEGG analysis revealed that oxidative phosphorylation was one of the important pathways. This study gave new perspectives to understand the underlying mechanisms associated with muscle-specific beef quality.
More Related Videos
Related Concept Videos
Difference from Background: Limit of Detection
The LOD indicates the presence or absence...
Electric Potential and Potential Difference
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
Molecular Shape and Polarity
Identifying Statistically Significant Differences: The F-Test
Sum and Difference OpAmps
A summing amplifier, or an adder, utilizes an op-amp to merge multiple input signals into a single output signal. When audio signals are introduced into its input channels, the input resistors initiate currents that traverse feedback resistors, resulting in an output voltage. Applying Kirchhoff's current...
Molecular Orbital Theory I

