Characterization of Partial Sequence of Myostatin Gene Exon 2 along with SNP detection in Indian Horse Breeds (Equus caballus).

The research explores the variation of the Myostatin gene across different breeds of Indian horses. Through gene sequencing, it identifies a single gene polymorphism – a minor genetic variation – which can influence the horses’ physical abilities and performance.

Background

• The research studies the Myostatin (MSTN) gene, which is significantly studied in the context of horse performance.
• Previous studies have shown that this gene plays an important role in the regulation of skeletal muscle mass, making it a key genetic component in performance analysis of horses.
• The population of horses in India is well-diversified across different geographical regions, and this study investigates whether there are any unique variations of the MSTN gene in Indian horse breeds.

Methodology

• About 60 samples from eight different breeds of Indian horses were collected for the study.
• Researchers amplified and sequenced a partial coding sequence (cds) of exon 2 from the MSTN gene in these samples for characterization and study.

Findings

• The results showed a transition of Thymine to Cytosine (T>C) as Single Nucleotide Polymorphisms (SNPs) at two different positions (codons T12C and T13C) on chromosome 18. In other words, they found two specific locations where the genetic code had changed slightly in the horses’ MSTN gene.
• The study also analyzed the haplotypes (a group of genes that a progeny inherits from one parent) and phylogeny (the evolutionary development and history) of the MSTN gene in the selected horse population.
• The haplotypes indicated variation among different breeds, yet the gene itself appeared to be generally distributed throughout the population. This means while the gene is common among all horses, specific changes or variations in the gene can differ among breeds.
• The phylogenetic analysis suggested that all the breeds are distributed in their specific geographical tracts.

Implications

• This research is the first to study MSTN gene variations in Indian horse breeds and offers insights that could potentially predict athletic performance as well as genealogy.
• The genetic information uncovered in this study can be useful in modeling the racing performances of the breeds, as the MSTN gene plays a significant role in muscle development, which is a crucial influence on horses’ physical abilities.