A Genetic Analysis of Taoyuan Pig and Its Phylogenetic Relationship to Eurasian Pig Breeds
| Autor: | Chien-Yi Hung, Kuang-Ti Li, Chun-Chun Cheng, Kuan-Yi Li, Y. T. Ju, Chia-Hsuan Chen |
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| Rok vydání: | 2015 |
| Předmět: |
Genetics
Genetic diversity education.field_of_study Haplotype Population lcsh:Animal biochemistry Zoology Biology Genetic analysis Article Mitochondrial DNA Breed Fixation index Microsatellite Microsatellite Marker Animal Science and Zoology lcsh:Animal culture Taoyuan Pig education lcsh:QP501-801 Inbreeding Phylogeny lcsh:SF1-1100 Food Science |
| Zdroj: | Asian-Australasian Journal of Animal Sciences Asian-Australasian Journal of Animal Sciences, Vol 28, Iss 4, Pp 457-466 (2015) |
| ISSN: | 1976-5517 1011-2367 |
| DOI: | 10.5713/ajas.14.0595 |
| Popis: | Taoyuan pig is a native Taiwan breed. According to the historical record, the breed was first introduced to Taiwan from Guangdong province, Southern China, around 1877. The breed played an important role in Taiwan’s early swine industry. It was classified as an indigenous breed in 1986. After 1987, a conserved population of Taoyuan pig was collected and reared in isolation. In this study, mitochondrial DNA sequences and 18 microsatellite markers were used to investigate maternal lineage and genetic diversity within the Taoyuan pig population. Population differentiation among Taoyuan, Asian type, and European type pig breeds was also evaluated using differentiation indices. Only one D-loop haplotype of the Taoyuan pig was found. It clustered with Lower Changjiang River Basin and Central China Type pig breeds. Based on the polymorphism of microsatellite markers, a positive fixation index value (FIS) indicates that the conserved Taoyuan population suffers from inbreeding. In addition, high FST values (>0.2105) were obtained, revealing high differentiation among these breeds. Non-metric multi-dimensional scaling showed a clear geometric structure among 7 breeds. Together these results indicate that maternally Taoyuan pig originated in the Lower Changjiang River Basin and Central China; however, since being introduced to Taiwan differentiation has occurred. In addition, Taoyuan pig has lost genetic diversity in both its mitochondrial and nuclear genomes. |
| Databáze: | OpenAIRE |
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