scholarly journals Phylogenetic Evolution and Phylogeography of Tibetan Sheep Based on mtDNA D-Loop Sequences

2018 ◽  
Author(s):  
Jianbin Liu ◽  
Xuezhi Ding ◽  
Yufeng Zeng ◽  
Xian Guo ◽  
Xiaoping Sun ◽  
...  
Keyword(s):  
Tibetan Sheep ◽  
D Loop ◽  
Phylogenetic Evolution

scholarly journals Genetic Diversity and Phylogenetic Evolution of Tibetan Sheep Based on mtDNA D-Loop Sequences

PLoS ONE ◽  
2016 ◽  
Vol 11 (7) ◽  
pp. e0159308 ◽  
Author(s):  
Jianbin Liu ◽  
Xuezhi Ding ◽  
Yufeng Zeng ◽  
Yaojing Yue ◽  
Xian Guo ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Tibetan Sheep ◽  
D Loop ◽  
Phylogenetic Evolution

scholarly journals Phylogeography and Phylogenetic Evolution in Tibetan Sheep Based on MT-CYB Sequences

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1177
Author(s):  
Jianbin Liu ◽  
Zengkui Lu ◽  
Chao Yuan ◽  
Fan Wang ◽  
Bohui Yang
Keyword(s):  
Mitochondrial Dna ◽  
Tibetan Plateau ◽  
Clustering Analysis ◽  
Genetic Resource ◽  
Population Studies ◽  
Ovis Aries ◽  
Base Pairs ◽  
Branching Order ◽  
Tibetan Sheep ◽  
Phylogenetic Evolution

To date, molecular genetics and population studies in Tibetan sheep (Ovis aries) have been limited, and little is known about the phylogenetic evolution and phylogeography of Tibetan sheep populations. The aim of the present research was to explore phylogeography and phylogenetic evolution of Tibetan sheep populations, on the basis of mitochondrial DNA (mtDNA) gene MT-CYB (1140 base pairs). Our dataset consisted of 641 MT-CYB sequences from the same amount of animals belonging to 15 populations of Tibetan sheep living in the Qinghai–Tibetan Plateau, China. Haplotype and nucleotide diversities were 0.748 ± 0.010 and 0.003 ± 0.001, respectively. The analysis of phylogeography revealed the presence of two formerly described haplogroups in 15 populations of Tibetan sheep, however only one haplogroup was present in Awang sheep. Moreover, 641 Tibetan sheep were distributed into a minimum of two clusters by clustering analysis. The 15 Tibetan sheep populations and 19 reference populations of 878 individuals were separated into six main groups based on their substitutions per site, from which we constructed a phylogenetic tree. Minor differences in branching order of various taxa between trees acquired from either gene were observed. This study provides insights on the origins and phylogenetic evolution of populations residing in the Qinghai–Tibetan Plateau, which will aid information of future conservation programs aimed at conserving this valuable genetic resource.

Meta-analysis evidence of maternal lineages in Chinese Tibetan sheep using mtDNA D-loop panel

2016 ◽  
Vol 28 (4) ◽  
pp. 579-583 ◽  
Author(s):  
E. Guangxin ◽  
Zhao Yong-Ju ◽  
Na Ri-Su ◽  
Ma Yue-Hui ◽  
Zhang Jia-Hua ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Tibetan Sheep ◽  
D Loop

scholarly journals Intraspecific Genetic Distance and Phylogenetic Evolution of Schizothorax Plagiostomus Inferred from Mitochondrial D-Loop Sequences

2021 ◽  
Author(s):  
Tasleem Akhtar ◽  
Muneeb M. Musthafa ◽  
Noor Us Sehar ◽  
Ghazanfar Ali
Keyword(s):  
Phylogenetic Relationships ◽  
Nucleotide Diversity ◽  
Nucleotide Composition ◽  
Pairwise Distance ◽  
Conserved Sequence ◽  
Sequence Block ◽  
Loop Region ◽  
D Loop ◽  
Phylogenetic Evolution ◽  
Specific Nucleotide

Abstract The fish in the genus Schizothorax from the Cyprinidae family live in high-altitude Rivers andstreams, are threatened by various anthropogenic stressors. This study aims to characterize S. plagiostomus across Pakistan and throughout the world available on NCBI using the mitochondrial D-loop region, and in particular, to assess the degree of intra-specific pairwise distance among these sequences, as well as to establish their phylogenetic relationships. The percent overall nucleotide composition was 32.6% (A), 33.6% (T), 19.8% (C), and 14.0% (G), which infers that S. plagiostomus control regions is AT-rich (66.2%) and poor in G contents. The mean pair-wise intra-specific nucleotide diversity (Pi)of all the S. plagiostomus was 0.022. While, the inter-specific nucleotide diversity of all the Schizothorax species was 0.049. D-loop sequences for intra-specific variations revealed 765 sites were invariable and 10 were variable, 8 parsimony informative sites and only 2 were singletons. The overall transition/transversion ratio is R = 7.135. Three domains in S. plagiostomus were observed, namely, the termination associated sequence (TAS) domain, the central conserved sequence block (CSB) domain, and the conserved sequence block (CSB) domain. No substitution saturation was detected as an Iss value was significantly (𝑃< 0.001) lower than the Iss.c in all cases indicating the suitability of the data for phylogenetic analysis. This study signifies the importance of the control region for the genetic analysis of S. plagiostomus and also provides a hypothesis of their phylogenetic relationships.

Distribution and evolution of simple repeats in the mtDNA D-loop in mammalian

2011 ◽  
Vol 33 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Jin-Pu WEI ◽  
Xue-Feng PAN ◽  
Hong-Quan LI ◽  
Fei DUAN
Keyword(s):  
D Loop ◽  
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