Simple sequence repeat (SSR) genotypic data reveal high genetic diversity in Rajasthan donkey of India

REKHA SHARMA; HIMANI SHARMA; SONIKA AHLAWAT; POONAM PANCHAL; YASH PAL; RAHUL BEHL; M S TANTIA

doi:10.56093/ijans.v87i12.79860

Authors

REKHA SHARMA ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
HIMANI SHARMA ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
SONIKA AHLAWAT ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
POONAM PANCHAL ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
YASH PAL ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
RAHUL BEHL ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India
M S TANTIA ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana 132 001 India

https://doi.org/10.56093/ijans.v87i12.79860

Keywords:

Donkey, Genetic characterization, Microsatellite, Rajasthan

Abstract

Spiti is the only breed of donkey in the list of 160 breeds registered so far for the indigenous germplasm. It points towards the fact that Indian donkey diversity is largely unexplored, in spite of its role in support system of poorest of the poor countrymen. Rajasthan state harbours more than eighty thousand donkey. Genetic diversity underpins population resilience and persistence so a need was felt for the systematic and scientific evaluation of existing diversity in this population. The diversity status of Rajasthan donkey population was investigated by using 20 microsatellite markers. Two of the loci, HMS5 and ASB17, depicted less than 4 alleles and were thus excluded from further analyses. Rajasthan donkey was found to host considerable diversity. This conclusion is evidenced by the number of alleles observed across loci (average 8.16±0.89), and by mean observed heterozygosity (0.688±0.06). Signatures of inbreeding could not be detected by the FIS indices in the Rajasthan donkey population. The population did not suffer any bottleneck in the recent past. The study provides the first scientific assessment of the genetic diversity status of Rajasthan donkey population. This information on the genetic analysis can be used in conjunction with the information on physical and phenotypic characteristics and management practices for registration of this population as a breed.

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