Individual Identification and Assessment of Genetic Diversity Using Microsatellite Markers in Racing Pigeons Raised in Turkiye

Year 2024, , 76 - 84, 02.09.2024

Nursen Şentürk , Sebahat Dilara Taşkın , Özden Çobanoğlu , Sena Ardıclı

https://doi.org/10.30782/jrvm.1468165

Abstract

The implementation of a swift and economical molecular genetic approach, ensuring both efficacy and cost-effectiveness and facilitating population certification, is of utmost significance for breeders and the conservation of Turkiye's native pigeon biodiversity. In this study, we aimed to examine the genetic structure of racing pigeons (Columba livia domestica) raised in Turkiye using a genetic marker panel consisting of eight short tandem repeat (STR) loci. For this purpose, DNA was isolated from the shed feathers of 216 pigeons. Genomic DNA was amplified using the multiplex allele-specific PCR and subsequent capillary electrophoresis with ABI PRISM 3130XL Genetic Analyzer. Next, PCR products were analyzed in the GeneMapper Software program (Applied Biosystems). For parent testing, paternity index (PI), combined paternity index (CPI), and cumulative probability of paternity (CPP) were calculated. Furthermore, population genetic diversity was evaluated using heterozygosity (He), polymorphism information content (PIC), and Hardy–Weinberg equilibrium (HWE) testing. Results revealed that the total number of alleles is 81 and the number of alleles per locus varies between 4 and 19. The similarity rate between parent and offspring was calculated as 99.99% and above. Since no pedigree information was given when the samples were analyzed, obtaining this similarity ratio demonstrates the reliability of the panel. He values range from 0.362 to 0.919, and the PIC values range from 0.295 to 0.909. Loci PG-1, PG-2, and PG-3 show significant genetic diversity, with moderate to high PIC values reflecting varied allele frequencies in the population. Consequently, the set of seven STR markers (+ one sex marker) can be applied to identify and confirm parentage on a regular basis, thereby facilitating efficient breeding programs and ensuring genetic diversity conservation. This panel enables efficient pedigree analysis and gender determination, optimizing cost-effectiveness. The methodology presented in this study is ideal for pedigree analysis and breed certification in the Turkish pigeon breeding industry. Consequently, we affirm that the study data carries considerable national importance.

Keywords

parentage testing, microsatellite markers, genetic diversity, population structure, Columba livia domestica

Ethical Statement

Approval from an ethics committee was not necessary for this study, as it did not involve any invasive research on live animals or humans. DNA isolation was exclusively conducted using fallen feathers, with no collection of blood or tissue samples.

Supporting Institution

None.

Thanks

The data on some parts of the research has been presented as an oral presentation at the 13th International Hippocrates Congress on Medical and Health Sciences, 2023. The authors would like to thank “Türkiye Kanatlı DNA” for providing the feathers and valuable information regarding the pigeons.

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