Background China is abundant of sheep genetic resources. Shi2, H.X. The results showed that genetic differentiation coefficient obtained from structural loci was 0.0164-0.0455, while, obtained from microsatellite loci was 0.0107-0.0239, indicating that genetic differentiation level was very low among 4 sheep breeds. Look forward to liberate high energy on completion of this project. Four‐horned sheep are an ideal animal model for illuminating the genetic basis of horn development. These animals belong to a traditional local breed with high production, extensive adaption, early maturity and roughage resistance. The mean nucleotide composition of the 350 haplotypes was 32.961% A, 29.708% T, 22.892% C, 14.439% G, 62.669% A+T, and 37.331% G+C. Colombian sheep showed a low level of genetic differentiation among breeds (FST = 0.054) and STRUCTURE analysis showed complex patterns of admixture in the breeds. Genomic scan of selective sweeps in Djallonké (West African Dwarf) sheep shed light on adaptation to harsh environments. and island populations. distruct provides a general method for visualizing these estimated membership coefficients. The observed alleles have different size from other shows the existence of private alleles for flocks. The cluster trees were constructed by UPMGA method. Zhang L, Liu J, Zhao F, Ren H, Xu L, Lu J, Zhang S, Zhang X, Wei C, Lu G, Zheng Y, Du L. PLoS One. In the present work, we report the complete mitochondrial genome sequence of wild Huoba Tibetan sheep for the first time. Other SNP loci did not deviate from HWE (p>0.05) revealing that the population was in HWE proportions. Meanwhile, genetic variations among 482 individuals from 9 populations were genotyped with 10 microsatellites. Furthermore, the pair-wise F(IS) revealed a moderate genetic differentiation among populations (P < 0.01), indicating that all breeds can be considered genetically independent entities. At the end of the simulated evolution five genetic distance measures (Nei's standard and minimum distances, Rogers' distance, Cavalli-Sforza's f theta, and the modified Cavalli-Sforza distance) were computed for all pairs of species, and the distance matrix obtained for each distance measure was used for reconstructing a phylogenetic tree. Breeds of Domestic Animal and Poultry in Shandong. Chinese sheep breeds had maintained a high level of within-population genetic differentiation (95.23%), with the remainder explained by differentiation among populations (4.77%). It’s why they have such loud and deep barks. 17. The ability to differentiate genetically primitive sheep from more modern However, several diverged major ancestries may cause it to contribute less to non-neutral variation than expected from the microsatellite data. The results contribute to the knowledge of Chinese sheep breeds and the plan of conservation programs on large-fat-tailed sheep. The livestock breeds enumerated Include 14 horse, 2 camel, 14 yellow … Blood samples from 44 unrelated Assaf.E individuals from 23 different Assaf.E flocks spread throughout 6 different Spanish provinces were obtained and genotyped using 14 microsatellites. 2007), Chinese, ... Tan sheep is raised mainly in Ningxia province and well adapted to the local dry, windy environment; possess a desired trans-species coat trait-curly pelage (Taylor et al., 2000). An attempt is made to illustrate the influence on breed formation of environmental factors, in addition to those of genetics and selection. This illustrated that most variations existed within breeds and genetic differentiation level were very low among sheep breeds of the Mongolian Group in China. -. that more than one third of the 30 loci were in departure from neutrality, implying that some evolutionary forces (e.g. Forty-one microsatellites were analysed to assess genetic diversity in nine Swiss sheep breeds and to measure the loss of the overall diversity when one breed would become extinct. The mean FIS value observed was 0.0786±0.044. Investigation of genetic relationship by phylogeny revealed four distinct clusters; the first cluster formed by four South Asian sheep breeds, the second cluster formed by Iraqi and Bulgarian sheep breeds; the third cluster formed by Iranian, Austrian, Burkina Faso and Peruvian sheep breeds and the fourth cluster formed by Punjab Urial and captive mouflon type sheep. In this study, 176 ewes from one Chinese uniparous breed and three Kazakhstan multiparous breeds are genotyped using Affymetrix 600K HD single nucleotide polymorphism (SNP) arrays, F-statistics (Fst), and a Cross Population Extend Haplotype Homozygosity Test (XPEHH). The results showed that the Katjang goat population had a high level of inbreeding compared to the other goat breeds. between CNV of ORMDL1 gene and sheep growth traits, suggesting that ORMDL1 CNV may be considered a promising marker for the molecular breeding of Chinese sheep. The present study has shed light onto the understanding of fat metabolism. Gene flow was analyzed among 4 Chinese sheep breeds of Mongolian group by structural loci and microsatellite markers. Three-branch phylogeny constructed from pairwise…. -, Shriver MD, Kennedy GC, Parra EJ, Lawson HA, Sonpar V, Huang J, et al. Our results indicated that combine locus-specific branch lengths and di statistical approaches can reduce the searching ranges for specific selection. All 10 Chinese sheep breeds belonged to the "Mongolian sheep" lineage; however, Finnish Landrace sheep and Yunnan sheep could not be classified into any of the four groups. History of Raising Cattle, Sheep and Goat in China (Attached History of Raising Deer). The results showed that Chinese indigenous sheep populations have distinct genetic differentiation. Ovines (Sheep), such as the Galway Sheep. Principal components analysis revealed individuals from Punjab Urial sheep population being distributed close to the cluster of West Asian and East European sheep (Hamdani-Karakachanska-West Palminska) while being distinct from the cluster of four Indian breeds. To answer these questions, we have taken this initiative to re-sequence the genome of junglefowls and domestic chickens. Additionally, the candidate locus was validated based on a fat- and thin-tailed cross population. Wan 2, H. Tang 2, H. Yang and F. Guan1,3 1College of Life Sciences, China Jiliang University, Hangzhou, China 2The Key Sheep Breeding and Reproduction Biotechnology Laboratory of Xinjiang Production and Construction Group, Shihezi, China Human genomics. 2008;Agaviezor et al. The aim of our present study was to construct genetic structure and relationships among Chinese fine-wool sheep breeds. Conclusions The inter-population variation levels in Chinese sheep populations indicated three geographically independent domestication events have occurred. -, Tang K, Thornton KR, Stoneking M. A new approach for using genome scans to detect recent positive selection in the human genome. Qiao L; Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China. It’s still relatively rare to find a … Its gene expression pattern in different adipose tissue types has not been thoroughly investigated. The effective number of alleles per locus and expected heterozygosity were greatest in BI, LR, and AL, and least in DU. In this study, 123 animals from 3 different flocks (ADU-ÇÇKP conservation flock and two breeders’ flocks) were genotyped with 10 microsatellite markers to investigate genetic diversity in the endangered native Çine Çaparı sheep breed. Tibetan Mastiff is known to be “nomadic” as they originate from the tribes of Mongolia, Tibet, and China. We also found two well-known genes, GHR (which affects meat production and quality) and EDAR (associated with hair thickness) were associated with German mutton merino sheep. Furthermore, four genes (POL, RPL7, MSL1 and SHISA9) were associated with pre-weaning gain in our previous genome-wide association study. / Small Ruminant Research 90 (2010) 88–94, there has been lot much controversy since human has domesticated the wild junglefowl and raised domestic chicken. The main goals were to infer the impact of Maremmano breed in the current Sanfratellano horse and to provide genetic information useful to improve the selection strategies of the Sanfratellano horse. The entire mitochondrial control region for 55 samples was then sequenced to construct a phylogenetic tree and median joining network. (2009. In analysis of multilocus genotypes from structured populations, individual coefficients of membership in subpopulations are often estimated using programs such as structure. The present study provides new information about the population genetics parameters of fat-tailed sheep in southern Jordan. Consultative Group on International Agricultural Research, Genetic characterization of Colombian indigenous sheep, Tracing genetic differentiation of Chinese Mongolian sheep using microsatellites, Genetic diversity of Colombian sheep by microsatellite markers, Multilocus genotypic data reveal high genetic diversity and low population genetic structure of Iranian indigenous sheep, Genome-wide SNPs and InDels characteristics of three Chinese domestic sheep breeds from different ecoregions, Short tandem repeat (STR) based genetic diversity and relationship of domestic sheep breeds with primitive wild Punjab Urial sheep (Ovis vignei punjabiensis), Limitation of high-resolution melting curve analysis for genotyping simple sequence repeats in sheep, Genome-wide analysis reveals population structure and selection in Chinese indigenous sheep breeds, The complete mitochondrial genome sequence of the dwarf blue sheep, Pseudois schaeferi haltenorth in China, The complete mitochondrial genome sequence of the wild Huoba Tibetan sheep of the Qinghai-Tibetan Plateau in China, Determination of genetic diversity of the Akkaraman sheep breed from Turkey, Genetic Diversity and Phylogenetic Evolution of Tibetan Sheep Based on mtDNA D-Loop Sequences, High gene flows promote close genetic relationship among fine-wool sheep populations (Ovis aries) in China, Phylogenetic Evolution and Phylogeography of Tibetan Sheep Based on mtDNA D-Loop Sequences, Genetic diversity at four Nigerian sheep breeds assessed by variation of albumin and carbonic anhydrase in cellulose acetate electrophoretic systems, Rapid evolution of a retro-transposable hotspot of ovine genome underlies the alteration of BMP2 expression and development of fat tails, Single-nucleotide polymorphism-based genetic diversity analysis of the Kilakarsal and Vembur sheep breeds, Analysis of Genetic Variation of Fat Tailed-sheep in Southern Region of Jordan, Two linked TBXT (brachyury) gene polymorphisms are associated with the tailless phenotype in fat‐rumped sheep, Genetic variability and individual assignment of Chinese indigenous sheep populations (Ovis aries) using microsatellites, Genetic differentiation and gene flow among six sheep breeds of Mongolian group in China, Analysis of Genetic Diversity in Indigenous Cine Capari Sheep under Conservation by Microsatellite Markers, Gene Flow between Nigerian Sheep Breeds as Revealed by Microsatellite DNA Markers, Genetic Variation of 5 SNPs of MC1R Gene in Chinese Indigenous Sheep Breeds, Genetic characterisation of Tiruchy Black sheep of Tamil Nadu using microsatellite markers, Whole-genome sequences of 89 Chinese sheep suggest role of RXFP2 in the development of unique horn phenotype as response to semi-feralization, Genetic differentiation and phylogeny of 27 sheep populations based on structural gene loci, Mitochondrial DNA diversity, origin, and phylogenic relationships of three Chinese large-fat-tailed sheep breeds, Accuracy of estimated phylogenetic trees from molecular data. Recently, studies of Chinese sheep have indicated that the majority of Chinese local sheep breeds have high genetic diversity and population (sub)structure (Ma et al. Big Chinese Dog Breeds. Genome-wide association studies for growth and meat production traits in sheep. Here, we aimed to evaluate genetic selection among three different types of sheep breed: two well-known commercial mutton breeds and one indigenous Chinese breed. Background There are abundant sheep breed resources in the Xinjiang region of China attributing to its diverse ecological system, which include several high-litter size sheep populations. Population structure and genetic diversity in the Portuguese native breeds of pigs Alentejano (AL), Bísaro (BI), and Malhado de Alcobaça (MA) and the exotic breeds Duroc (DU), Landrace (LR), Large White (LW), and Pietrain were analyzed by typing 22 microsatellite markers in 249 individuals. Here we assess the genetic relationships among the Assaf.E and major native Spanish dairy breeds using microsatellites to contribute to the knowledge of the formation and within-population genetic variability of the breed. The diversity of OAR13_67857725.1 SNP…. They have a creamy colored wool.