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Updated: Mar 5, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
Published on: February 10, 2023
ACTN3/ACE genotypes and mitochondrial genome in professional soccer players performance
V Galeandro1, A Notarnicola1, A Bianco1
1Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy.
Genetic variants in ACTN3 and ACE genes may predict soccer talent. Elite athletes showed increased mitochondrial DNA (mtDNA) content, correlating with training load, suggesting mtDNA as a bioenergetics biomarker.
Area of Science:
- Sports Science
- Genetics
- Exercise Physiology
Background:
- ACTN3 and ACE genes influence physical performance.
- Gene variants are linked to athletic traits in the general population.
Purpose of the Study:
- Assess ACTN3 R577X and ACE I/D gene variants in elite soccer players versus controls.
- Investigate the effect of training on mitochondrial DNA (mtDNA) content in athletes.
Main Methods:
- Genotyping of ACTN3 R577X and ACE I/D polymorphisms using PCR-RFLP.
- Quantification of mtDNA cellular content via RT-PCR.
- Comparison between 43 soccer players and 128 non-athletic controls.
Main Results:
- Soccer players exhibited a tendency towards ACTN3RR and ACEDD genotypes.
- Significantly increased peripheral blood mtDNA content was observed in athletes.
- Increased mtDNA copy number correlated with training load.
Conclusions:
- ACTN3 and ACE genotypes may aid in identifying soccer talent.
- mtDNA copy number can serve as a bioenergetics biomarker reflecting training load.
- Genetic insights could personalize training strategies for athletes.
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