Related Experiment Video
Updated: Feb 8, 2026
10:41
Leveraging CyVerse Resources for De Novo Comparative Transcriptomics of Underserved Non-model Organisms
Published on: May 9, 2017
9.6K
Comparative analysis of the blood transcriptomes between wolves and dogs
1College of Life Science, Qufu Normal University, Jingxuan West Road No. 57, Qufu, Shandong, 273165, China.
Animal Genetics
|June 29, 2018
Summary
Wolves exhibit higher expression of genes linked to immune function and aerobic capacity compared to domestic dogs. This suggests wolves may possess greater pathogen resistance and endurance capabilities.
Area of Science:
- Genomics
- Comparative Biology
- Evolutionary Biology
Background:
- Dogs originated from wolves, sharing genetic similarities but adapting to different environments.
- Understanding genetic differences is key to studying domestication and adaptation.
Purpose of the Study:
- To identify gene expression differences between wolves and dogs.
- To investigate the genetic basis for potential differences in immune function and aerobic capacity.
Main Methods:
- RNA-sequencing (RNA-Seq) was used to analyze blood transcriptomes.
- Comparative analysis of gene expression profiles between two dogs and three wolves.
- Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed.
Main Results:
- 524 differentially expressed genes were identified between wolves and dogs.
- Genes associated with immune function and aerobic capacity were more highly expressed in wolves.
- Enrichment analysis revealed significant differences in innate immune response and immune system development pathways in wolves.
Conclusions:
- Wolves show higher expression of genes related to immune function and aerobic capacity.
- These findings suggest wolves may have superior pathogen resistance, hypoxia endurance, and aerobic capacity compared to dogs.
- The study provides insights into the genetic adaptations that occurred during dog domestication.
Related Concept Videos
01:20Comparing the Survival Analysis of Two or More Groups
609
Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and...
609
02:24Comparative Excretory Systems
26.7K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
26.7K
03:40Dimensional Analysis
65.0K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
Conversion Factors and Dimensional Analysis
The unit...
65.0K
02:26Comparing Copy Number Variations and SNPs
18.8K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
18.8K
01:09Comparing Experimental Results: Student's t-Test
6.1K
The t-test is a statistical method used to compare the sample mean with a population mean or compare two means from two data sets. The test statistic is calculated from the standard deviation, mean, and number of measurements in the data set at a selected confidence interval and then compared to a table of critical values at this confidence level. If the test statistic is smaller than the critical value, the null hypothesis is accepted. In this case, we state that the difference between the...
6.1K
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
16.5K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
16.5K