Animal Bioscience

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Single nucleotide polymorphism-based analysis of the genetic structure of the Min pig conserved population

  • Meng, Fanbing (College of Life Science, Northeast Agricultural University) ;
  • Cai, Jiancheng (Lanxi Breeding Farm) ;
  • Wang, Chunan (Lanxi Breeding Farm) ;
  • Fu, Dechang (Lanxi Breeding Farm) ;
  • Di, Shengwei (College of Animal Science and Technology, Northeast Agricultural University) ;
  • Wang, Xibiao (College of Animal Science and Technology, Northeast Agricultural University) ;
  • Chang, Yang (College of Life Science, Northeast Agricultural University) ;
  • Xu, Chunzhu (College of Life Science, Northeast Agricultural University)
  • Received : 2021.12.27
  • Accepted : 2022.06.03
  • Published : 2022.12.01
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Abstract

Objective: The study aims to uncover the genetic diversity and unique genetic structure of the Min pig conserved population, divide the nucleus conservation population, and construct the molecular pedigree. Methods: We used KPS Porcine Breeding Chip v1 50K for SNP detection of 94 samples (31♂, 63♀) in the Min pig conserved population from Lanxi breeding Farm. Results: The polymorphic marker ratio (PN), the observed heterozygosity (Ho), and the expected heterozygosity (He) were 0.663, 0.335, and 0.330, respectively. The pedigree-based inbreeding coefficients (FPED) was significantly different from those estimated from runs of homozygosity (FROH) and single nucleotide polymorphism (FSNP) based on genome. The Pearson correlation coefficient between FROH and FSNP was significant (p<0.05). The effective population content (Ne) showed a continuously decreasing trend. The rate of decline was the slowest from 200 to 50 generations ago (r = 0.95), then accelerated slightly from 50 to 5 generations ago (1.40

Keywords

Acknowledgement

This research was supported by the Natural Science Foundation of Heilongjiang Province (LH2019C017).

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