Asian Journal of Dairy and Food Research, volume 40 issue 3 (september 2021) : 285-289

Profiling of Chromosomal Complement in Nandidurga Goats of Karnataka

Basavraj Inamdar, R. Nagaraja, H.M. Yathish, S. Naveen Kumar, G.S. Naveen Kumar, K.V. Sudh
1Department of Animal Genetics and Breeding, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Hebbal, Bengaluru-560 024, Karnataka, India.
Cite article:- Inamdar Basavraj, Nagaraja R., Yathish H.M., Kumar Naveen S., Kumar Naveen G.S., Sudh K.V. (2021). Profiling of Chromosomal Complement in Nandidurga Goats of Karnataka. Asian Journal of Dairy and Food Research. 40(3): 285-289. doi: 10.18805/ajdfr.DR-1655.
Background: To characterize the chromosomal complement of Nandidurga goats. 
Methods: Blood samples for short term lymphocyte culture were collected from 5 bucks and 5 does from its breeding tract and then mitotic chromosomal spreads were accomplished. 
Result: The diploid chromosome number was found to be 60, consisting of 58 acrocentric autosomes and 2 sex chromosomes (X and Y). The X chromosome was found to be the longest acrocentric and Y chromosome was found to be sub metacentric. The mean mitotic drive was 64.5±2.01 and 63.15±1.30 percent in bucks and does, respectively. The mean relative length of autosomes varied from 2.08±0.24 to 4.81±0.12 in does and 2.09±0.09 to 4.70±0.11in bucks. The relative length of X chromosome in does was 5.14±0.17 and that in bucks was 4.92±0.21, whereas Y chromosome had a relative length of 1.99±0.20. The mean Arms Ratio, Centromeric Index and Morphological Index were 2.47, 31.62 and 396.14, respectively. This cytogenetic analysis indicates the normal chromosomal complement in the studied Nandidurga goats.
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