1. Phylogenetic Relationships of Turkish Indigenous Donkey Populations Determined by Mitochondrial DNA D-loop Region
- Author
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Mehmet Soysal, Fulya Özdil, Emel Özkan Ünal, Eser Kemal Gürcan, Serdar Genç, Sezen Arat, and Selçuk Kaplan
- Subjects
Tajikistan ,haplotype ,genomic DNA ,polymerase chain reaction ,mitochondrial DNA ,phylogeny ,Genetic diversity ,donkey ,Turkey (republic) ,Haplogroup ,Nucleotide diversity ,cytochrome c oxidase ,genetic variability ,lcsh:Zoology ,genetic polymorphism ,gene mutation ,lcsh:QL1-991 ,D-loop ,DNA extraction ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) ,cladistics ,lcsh:Veterinary medicine ,Phylogenetic tree ,mtDNA ,genetic diversity ,nucleotide ,Turkish donkeys ,genetic similarity ,Donkey ,haplogroup ,breed ,GeneralLiterature_INTRODUCTORYANDSURVEY ,MtDNA ,animal experiment ,DNA sequence ,gene frequency ,Biology ,Article ,domestication ,geographic distribution ,phylogenetic tree ,Domestication ,nonhuman ,General Veterinary ,Haplotype ,maternal origin ,population structure ,gene structure ,DNA isolation ,Evolutionary biology ,microbial diversity ,lcsh:SF600-1100 ,Animal Science and Zoology ,Maternal origin - Abstract
In this study, to analyze the mtDNA D-loop region and the origin of the maternal lineages of 16 different donkey populations, and to assess the domestication of Turkish indigenous donkeys in seven geographical regions, we investigated the DNA sequences of the D-loop region of 315 indigenous donkeys from Turkey. A total of 54 haplotypes, resulting from 35 polymorphic regions (27 parsimoniously informative and 6 singleton sites), were defined. Twenty-eight of these haplotypes are unique (51.85%), and 26 are shared among different Turkish indigenous donkey populations. The most frequent haplotype was Hap 1 (45.71%), followed by two haplotypes (Hap 4, 15.55% and Hap 7, 5.39%). The breed genetic diversity, evaluated by the haplotype diversity (HD) and nucleotide diversity (&pi, D), for the Turkish donkey populations ranged from 0.533 ±, 0.180 (Tekirdağ&ndash, Malkara, MAL) to 0.933 ±, 0.122 (Aydin, AYD), and from 0.01196 ±, 0.0026 (Antalya, ANT) to 0.02101 ±, 0.0041 (Aydin, AYD), respectively. We observed moderate-to-high levels of haplotype diversity and moderate nucleotide diversity, indicating plentiful genetic diversity in all of the Turkish indigenous donkey populations. Phylogenetic analysis (NJT) and median-joining network analysis established that all haplotypes were distinctly grouped into two major haplogroups. The results of AMOVA analyses, based on geographic structuring of Turkish native donkey populations, highlighted that the majority of the observed variance is due to differences among samples within populations. The observed differences between groups were found to be statistically significant. Comparison among Turkish indigenous donkey mtDNA D-loop regions and haplotypes, and different countries&rsquo, donkey breeds and wild asses, identified two clades and which is named Somali (Clade IV) and Nubian (Clade V) lineages. The results can be used to understand the origin of Turkish donkey populations clearly, and to resolve the phylogenetic relationship among all of the different regions.
- Published
- 2020