Phylogenetic analysis of snow sheep (Ovis nivicola) and closely related taxa

Article Abstract:

Three genetic groups' argaliforms, moufloniforms and pachyceriforms resulted during the evolution of Ovis and the Pachyceriforms of the subgenus pachyceros include the thin-horn sheep Ovis nivicola (snow sheep), Ovis dalli (Dall and Stone sheep) and Ovis canadensis (rocky mountain and desert bighorn). It is found that the earlier period of the evolution of the Pachyceriforms evolved first in Eurasia the oldest ancestor, then giving rise to North American wild sheep and that a canadensis ancestor.

Cladistic analysis, Nucleotide sequencing

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Chromosome number of Severtzov's sheep (Ovis ammon severtzovi): G-banded karyotype comparisons within ovis

Article Abstract:

It is possible to determine whether Severtzov's wild sheep is a urial or an argali by establishing diploid chromosome number (2n) and looking at the karyotype. This sheep has a 2n = 56 diploid chromosome number and a karyotype made up of two pairs of biarmed and 25 pairs of acrocentric autosomes, a large acrocentric X and a minute biarmed Y. The size of the eight-year old ram studied during this research indicates that Severtzov's wild sheep could be the smallest of the argalis.

Mountain sheep

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SNP identification and analysis in part of intron 2 of goat MSTN gene and variation within and among species

Article Abstract:

Single nucleotide polymorphism (SNP) and analysis in part of intron 2 of the myostatin (MSTN) gene of 140 goats from 24 populations and 38 sheep from 8 breeds and similarly of different species from Gene bank were obtained to study MSTN diversity within and among species. Results indicated seven polymorphic sites in the sequenced region of goat which are not separated by recombination, presented complete linkage disequilibrium and could be resorted into three haplotypes.

Goat Farming, Goats, Polymerase chain reaction, Animal breeding, Single nucleotide polymorphisms

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