Evolution of T Cell Receptor Gamma Loci in Sheep and Cattle
Author Information
Author(s): Vaccarelli Giovanna, Miccoli Maria C, Antonacci Rachele, Pesole Graziano, Ciccarese Salvatrice
Primary Institution: Department of Genetics and Microbiology, University of Bari
Hypothesis
The study aims to analyze the genomic organization and evolutionary history of T cell receptor gamma loci in sheep and cattle.
Conclusion
The study proposes that duplications of entire J-J-C regions with enhancer-like elements were selected and fixed as functional recombinational units.
Supporting Evidence
- The study sequenced the complete sheep TRG1 and TRG2 loci.
- Comparative analysis showed that variable, joining, and constant genes evolved through duplication events.
- Phylogenetic analysis indicated a strong similarity between human and Bovidae intergenic regions.
Takeaway
This study looks at how certain genes in sheep and cattle have changed over time, showing that some parts of their DNA have duplicated to help their immune systems work better.
Methodology
The study involved sequencing the genomic regions of T cell receptor gamma loci in sheep and cattle and analyzing their evolutionary history through comparative genomic analysis.
Digital Object Identifier (DOI)
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