Mitochondrial DNA Variations in Colombian Creole Sheep Confirm an Iberian Origin and Shed Light on the Dynamics of Introduction Events of African Genotypes
| Autor: | Diana López-Alvarez, Vincenzo Landi, Lauden Rizzo, Luz Angela Alvarez, Herman Alberto Revelo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Mitochondrial DNA haplotype Lineage (genetic) Creole language Zoology mitochondrial DNA Biology Article 03 medical and health sciences parasitic diseases lcsh:Zoology lcsh:QL1-991 lcsh:Veterinary medicine General Veterinary Ecotype Phylogenetic tree maternal heritage Haplotype 0402 animal and dairy science 04 agricultural and veterinary sciences 040201 dairy & animal science Breed stomatognathic diseases 030104 developmental biology nervous system Creole sheep lcsh:SF600-1100 Animal Science and Zoology Founder effect |
| Zdroj: | Animals, Vol 10, Iss 1594, p 1594 (2020) Animals Volume 10 Issue 9 Animals : an Open Access Journal from MDPI |
| ISSN: | 2076-2615 |
| Popis: | The genetic origins and diversity of Creole sheep from five regions of Colombia were investigated based on mitochondrial DNA (mtDNA) variations across 89 sequences from five breeds: one wool Creole sheep (CL) and four hair Creole sheep, including Ethiopian (OPCE), Sudan (OPCS), Pelibuey (OPCP) and Wayú u (OPCW). A global comparison was done using 62 haplotypes from Iberian, African, Indian, Caribbean, Mexican, Caucasian and European sheep based on sequences retrieved from GenBank. This study aimed to identify the maternal origin of Colombian Creole sheep and their genetic relationships at a global level. The results showed 31 different haplotypes from Colombian Creole sheep, which can be assigned to maternal lineage B, the most common lineage found in European sheep breeds and the only one found in several Iberian breed (e.g., Churra, Spanish Merino) that most likely participated in the Creole formation. Additional analyses showed that wool and hair sheep retained a broad genetic identity despite being geographically separated. The global-level phylogenetic analysis revealed that Colombian Creole sheep belong to a distinct and defined genetic lineage that is likely the result of a founder effect with ecotypes of Iberian descent and the subsequent introduction of foreign breeds. This is consistent with historical reports on the presence of sheep in South America and, particularly, Colombia. |
| Databáze: | OpenAIRE |
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