ArticlePloS one2017
Determination of Genetic Structure and Signatures of Selection in Three Strains of Tanzania Shorthorn Zebu, Boran and Friesian Cattle by Genome-Wide SNP Analyses.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 38 citations in OpenAlex.
- Bovine Genome Database: new curated collection of selective sweeps in bovine populations across the world.Nucleic acids research · 2026Article
- Heat Stress Effects on Physiological and Milk Yield Traits of Lactating Holstein Friesian Crossbreds Reared in Tanga Region, Tanzania.Animals : an open access journal from MDPI · 2024Article
- Genetic Origin and Introgression Pattern of Pingliang Red Cattle Revealed Using Genome-Wide SNP Analyses.Genes · 2023Article
- Comparative Analysis of Microsatellite and SNP Markers for Genetic Management of Red Deer.Animals : an open access journal from MDPI · 2023Article
- Heat stress effects on milk yield traits and metabolites and mitigation strategies for dairy cattle breeds reared in tropical and sub-tropical countries.Frontiers in veterinary science · 2023Review
- Characterization of runs of homozygosity, heterozygosity-enriched regions, and population structure in cattle populations selected for different breeding goals.BMC genomics · 2022Article
- Assessing the Genetic Background and Selection Signatures of Huaxi Cattle Using High-Density SNP Array.Animals : an open access journal from MDPI · 2021Article
- Genetic characteristics of Korean Jeju Black cattle with high density single nucleotide polymorphisms.Animal bioscience · 2021Article
- Genetic assessment of BoLA-DRB3 polymorphisms by comparing Bangladesh, Ethiopian, and Korean cattle.Journal of animal science and technology · 2021Article
- The Identification of Runs of Homozygosity Gives a Focus on the Genetic Diversity and Adaptation of the "Charolais de Cuba" Cattle.Animals : an open access journal from MDPI · 2020Article
- Single nucleotide polymorphisms at heat shock protein 90 gene and their association with thermo-tolerance potential in selected indigenous Nigerian cattle.Tropical animal health and production · 2020Article
- Genetic Diversity and Signatures of Selection in a Native Italian Horse Breed Based on SNP Data.Animals : an open access journal from MDPI · 2020Article
- Genome-Wide Characterization of Selection Signatures and Runs of Homozygosity in Ugandan Goat Breeds.Frontiers in genetics · 2018Article
- Assessing genetic architecture and signatures of selection of dual purpose Gir cattle populations using genomic information.PloS one · 2018Article
- Weighted likelihood inference of genomic autozygosity patterns in dense genotype data.BMC genomics · 2017Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMore than 90 percent of cattle in Tanzania belong to the indigenous Tanzania Short Horn Zebu (TSZ) population which has been classified into 12 strains based on historical evidence, morphological characteristics, and geographic distribution. However, specific genetic information of each TSZ population has been lacking and has caused difficulties in designing programs such as selection, crossbreeding, breed improvement or conservation. This study was designed to evaluate the genetic structure, assess genetic relationships, and to identify signatures of selection among cattle of Tanzania with the main goal of understanding genetic relationship, variation and uniqueness among them. METHODOLOGY/PRINCIPAL
findingsThe Illumina Bos indicus SNP 80K BeadChip was used to genotype genome wide SNPs in 168 DNA samples obtained from three strains of TSZ cattle namely Maasai, Tarime and Sukuma as well as two comparative breeds; Boran and Friesian. Population structure and signatures of selection were examined using principal component analysis (PCA), admixture analysis, pairwise distances (FST), integrated haplotype score (iHS), identical by state (IBS) and runs of homozygosity (ROH). There was a low level of inbreeding (F~0.01) in the TSZ population compared to the Boran and Friesian breeds. The analyses of FST, IBS and admixture identified no considerable differentiation between TSZ trains. Importantly, common ancestry in Boran and TSZ were revealed based on admixture and IBD, implying gene flow between two populations. In addition, Friesian ancestry was found in Boran. A few common significant iHS were detected, which may reflect influence of recent selection in each breed or strain.
conclusionsPopulation admixture and selection signatures could be applied to develop conservation plan of TSZ cattle as well as future breeding programs in East African cattle.
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