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Pudong White pig: a unique genetic resource disclosed by sequencing data
11Department of Animal Science,School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240,PR China.
Animal : an International Journal of Animal Bioscience
|December 2, 2016
Summary
Pudong White pigs are a unique genetic resource, distinct from other Taihu and western breeds. Genome-wide analysis confirms their separate genetic structure, supporting conservation efforts.
Area of Science:
- Animal Genetics
- Genomics
- Livestock Science
Background:
- Pudong White (PW) pigs, found in China's Taihu region, have a debated genetic status due to their white coat.
- Their relationship to indigenous Taihu breeds and introduced western pig breeds requires clarification.
Purpose of the Study:
- To assess the genetic distinctiveness of Pudong White pigs.
- To clarify the genetic relationships between PW pigs, Taihu breeds, and western pig breeds using genome-wide data.
Main Methods:
- Whole-genome single nucleotide polymorphism (SNP) data analysis.
- Next-generation sequencing technology.
- Population genetics analyses including neighbour-joining tree, principal component analysis, and fastSTRUCTURE.
Main Results:
- Identified 64 potentially breed-specific SNPs for Pudong White pigs.
- PW pigs showed shorter genetic distance to Taihu breeds than to western breeds.
- Genetic analyses confirmed PW pigs form a distinct genetic cluster, separate from other breeds.
Conclusions:
- Pudong White pigs represent a unique genetic resource with a distinct genetic structure.
- The findings support the current breed classification of PW pigs.
- This study provides a basis for conservation and utilization strategies for the PW pig breed.
