Genetic Diversity and Phylogenetic Analysis of the mtDNA D-loop Region in Tibetan Sheep

Wang, X.; Chen, H.; Lei, Chuzhao

doi:10.5713/ajas.2007.313

Cited by 15 publications

(9 citation statements)

References 15 publications

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“…4). Median-joining networks revealed that the most common parchment 'sheep' sequence matched (100% identity) only one individual from Tibet (GenBank accession DQ903201; Wang et al, 2007). Given its rarity, the Tibetan sequence is possibly the result of a numt or in situ DNA recombination (Lopez et al, 1996;Pä ä bo et al, 1990).…”

Section: Network Analysis Of Sequencesmentioning

confidence: 96%

A flock of sheep, goats and cattle: ancient DNA analysis reveals complexities of historical parchment manufacture

Campana

Bower

Bailey

et al. 2010

Journal of Archaeological Science

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Section: Network Analysis Of Sequencesmentioning

confidence: 96%

A flock of sheep, goats and cattle: ancient DNA analysis reveals complexities of historical parchment manufacture

Campana

Bower

Bailey

et al. 2010

Journal of Archaeological Science

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“…Title: Distribution of haplotypes identified in the present study and in data available from GenBank. Description: The table provides distribution of haplotypes found in this study among previously studied contemporary sheep populations [2,57-63] available in GenBank.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Mitochondrial DNA and Y-chromosomal diversity in ancient populations of domestic sheep (Ovis aries) in Finland: comparison with contemporary sheep breeds

et al. 2013

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BackgroundSeveral molecular and population genetic studies have focused on the native sheep breeds of Finland. In this work, we investigated their ancestral sheep populations from Iron Age, Medieval and Post-Medieval periods by sequencing a partial mitochondrial DNA D-loop and the 5’-promoter region of the SRY gene. We compared the maternal (mitochondrial DNA haplotypes) and paternal (SNP oY1) genetic diversity of ancient sheep in Finland with modern domestic sheep populations in Europe and Asia to study temporal changes in genetic variation and affinities between ancient and modern populations.ResultsA 523-bp mitochondrial DNA sequence was successfully amplified for 26 of 36 sheep ancient samples i.e. five, seven and 14 samples representative of Iron Age, Medieval and Post-Medieval sheep, respectively. Genetic diversity was analyzed within the cohorts. This ancient dataset was compared with present-day data consisting of 94 animals from 10 contemporary European breeds and with GenBank DNA sequence data to carry out a haplotype sharing analysis. Among the 18 ancient mitochondrial DNA haplotypes identified, 14 were present in the modern breeds. Ancient haplotypes were assigned to the highly divergent ovine haplogroups A and B, haplogroup B being the major lineage within the cohorts. Only two haplotypes were detected in the Iron Age samples, while the genetic diversity of the Medieval and Post-Medieval cohorts was higher. For three of the ancient DNA samples, Y-chromosome SRY gene sequences were amplified indicating that they originated from rams. The SRY gene of these three ancient ram samples contained SNP G-oY1, which is frequent in modern north-European sheep breeds.ConclusionsOur study did not reveal any sign of major population replacement of native sheep in Finland since the Iron Age. Variations in the availability of archaeological remains may explain differences in genetic diversity estimates and patterns within the cohorts rather than demographic events that occurred in the past. Our ancient DNA results fit well with the genetic context of domestic sheep as determined by analyses of modern north-European sheep breeds.

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“…D-loop of two Tibetan sheep breeds was analyzed by Wang et al [83]. The length of the D-loop sequences varied considerably (between 1,107 bp and 1,259 bp) according to the copy numbers of a 75 bp tandem repeat located from 640 bp to 1,140 bp.…”

Section: Haplotype Diversitymentioning

confidence: 99%

Reality of Mitogenome Investigation in Preservation of Native Domestic Sheep Breeds

Gáspárdy¹

2021

Landraces - Traditional Variety and Natural Breed

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This chapter deals with the study of extranuclear hereditary material and the possibilities of using it to maintain endangered animal breeds. The chapter characterizes mtDNA, presents its genes and their functions, while also emphasizing the hypervariable control region. It reports on the results of previous researches, referring to international publications. It sheds light on promising areas of mitogenomic research. It shows the maternal genetic background of local native varieties according to the results of the study of available country/geographical region. It deals with reasons for endangerment and the arguments for preservation of autochthonous breeds. In addition, it gives place to discuss some exciting professional concepts in rare breed preservation.

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Genetic Diversity and Phylogenetic Analysis of the mtDNA D-loop Region in Tibetan Sheep

Cited by 15 publications

References 15 publications

A flock of sheep, goats and cattle: ancient DNA analysis reveals complexities of historical parchment manufacture

A flock of sheep, goats and cattle: ancient DNA analysis reveals complexities of historical parchment manufacture

Mitochondrial DNA and Y-chromosomal diversity in ancient populations of domestic sheep (Ovis aries) in Finland: comparison with contemporary sheep breeds

Reality of Mitogenome Investigation in Preservation of Native Domestic Sheep Breeds

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