Transcriptome Sequencing of the Blind Subterranean Mole Rat, Spalax galili: Utility and Potential for the Discovery of Novel Evolutionary Patterns
2011

Transcriptome Sequencing of the Blind Subterranean Mole Rat, Spalax galili

Sample size: 3 publication 10 minutes Evidence: moderate

Author Information

Author(s): Malik Assaf, Korol Abraham, Hübner Sariel, Hernandez Alvaro G., Thimmapuram Jyothi, Ali Shahjahan, Glaser Fabian, Paz Arnon, Avivi Aaron, Band Mark

Primary Institution: Institute of Evolution, University of Haifa, Haifa, Israel

Hypothesis

The emergence of novel transcribed regions in Spalax ehrenbergi may reflect positive selection of novel functional elements.

Conclusion

The study provides a valuable resource for future research on genes evolved during the adaptive radiation of the blind mole rat.

Supporting Evidence

  • The study identified over 51,000 isotigs with homology to approximately 12,000 mouse, rat, or human genes.
  • Multiple differential expression patterns were detected between tissues and treatments.
  • Isotigs were clustered based on homology to mouse, rat, and human genes, indicating evolutionary relationships.

Takeaway

Scientists studied a special mole rat that lives underground and found many new genes that help it survive in low oxygen. This can help us understand how animals adapt to tough environments.

Methodology

The study involved sequencing cDNA pools from muscle and brain tissues of Spalax galili under hypoxic and normoxic conditions using Sanger and GS FLX technologies.

Potential Biases

Potential biases may arise from the homology-based annotation and the reliance on specific reference genomes.

Limitations

The study may have biases due to the limited number of genes analyzed and the potential for assembly errors.

Participant Demographics

The study focused on individuals of the Spalax galili species captured in northern Israel.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021227

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