Microsatellite Analysis of Genetic Diversity and Population Structure of the Iranian Kurdish Horse.

This research investigated the genetic diversity of the Iranian Kurdish horse population using microsatellite markers. The researchers found a high degree of genetic diversity, and identified some unique alleles in the breed, offering valuable knowledge to enhance future Kurdish horse breeding programs.

Analysis of the Research

• The research was focused on the Iranian Kurdish horse population, as native breeds represent crucial genetic reservoirs for national stocks. Genetic diversity is a critical prerequisite for adaptive evolution, therefore, conservation efforts for preserving such diversity are essential for domestic species’ long-term survival.
• A total of 58 tail hair and blood samples were randomly collected from various locations across Iran. Genomic DNA was extracted from these samples using a modified salting out method, and the polymerase chain reaction amplification process was undertaken differently for each marker.
• The genetic variation within the Kurdish horse population was examined using 12 different microsatellite loci. All of these microsatellite loci showed polymorphisms in the population. This means that there were multiple different forms (alleles) of each microsatellite locus present in the population, an indicator of high genetic diversity.

Results and Implications

• The study reported average observed and effective number of alleles as 7.58 and 4.95 respectively. The observed number of alleles reflects the actual number of different forms or variants of a gene present in the population, indicating a high amount of diversity. The effective number of alleles is a measure that takes into account the frequencies of those alleles – a higher effective number of alleles implies that the alleles are more evenly distributed in the population, showing a broader utilization of genetic resources.
• Further numerical results such as a mean observed heterozygosity of 0.77, expected heterozygosity of 0.78, polymorphism information content of 0.75, and a Shannon’s Information Index of 1.67 all point towards a high degree of genetic diversity among the Iranian Kurdish horse population.
• Interesting to note, the researchers discovered a range of new alleles in the Iranian Kurdish horse breed that showed diversity in their genetic structure compared to other Iranian breeds. This finding is significant because it supports the idea that the Iranian Kurdish horse is a distinct genetic population with a pool of unique genetic resources.
• The study’s findings pose an exciting opportunity to enhance our understanding of genetic information, more specifically, in the realm of Kurdish horse breeds. This information can serve as a valuable base to identify purebred Kurdish horses and drive the implementation of effective breeding and conservation programs in the future.