scholarly journals Evaluation of 17 microsatellite markers for parentage testing and individual identification of domestic yak (Bos grunniens)

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5946 ◽  
Author(s):  
Jie Pei ◽  
Pengjia Bao ◽  
Min Chu ◽  
Chunnian Liang ◽  
Xuezhi Ding ◽  
...  

Background Yak (Bos grunniens) is the most important domestic animal for people living at high altitudes. Yak ordinarily feed by grazing, and this behavior impacts the accuracy of the pedigree record because it is difficult to control mating in grazing yak. This study aimed to evaluate the pedigree system and individual identification in polled yak. Methods A total of 71 microsatellite loci were selected from the literature, mostly from the studies on cattle. A total of 35 microsatellite loci generated excellent PCR results and were evaluated for the parentage testing and individual identification of 236 unrelated polled yaks. A total of 17 of these 35 microsatellite loci had polymorphic information content (PIC) values greater than 0.5, and these loci were in Hardy–Weinberg equilibrium without linkage disequilibrium. Results Using multiplex PCR, capillary electrophoresis, and genotyping, very high exclusion probabilities were obtained for the combined core set of 17 loci. The exclusion probability (PE) for one candidate parent when the genotype of the other parent is not known was 0.99718116. PE for one candidate parent when the genotype of the other parent is known was 0.99997381. PE for a known candidate parent pair was 0.99999998. The combined PEI (PE for identity of two unrelated individuals) and PESI (PE for identity of two siblings) were >0.99999999 and 0.99999899, respectively. These findings indicated that the combination of 17 microsatellite markers could be useful for efficient and reliable parentage testing and individual identification in polled yak. Discussion Many microsatellite loci have been investigated for cattle paternity testing. Nevertheless, these loci cannot be directly applied to yak identification because the two bovid species have different genomic sequences and organization. A total of 17 loci were selected from 71 microsatellite loci based on efficient amplification, unambiguous genotyping, and high PIC values for polled yaks, and were suitable for parentage analysis in polled yak populations.

2013 ◽  
Vol 13 (4) ◽  
pp. 715-722 ◽  
Author(s):  
Vladimir Dimitrijevic ◽  
Jevrosima Stevanovic ◽  
Mila Savic ◽  
Branko Petrujkic ◽  
Predrag Simeunovic ◽  
...  

Abstract The aim of the study was to assess a commercially available microsatellite panel for use in paternity and identification analyses in the Yugoslavian Shepherd Dog Sharplanina, an ancient livestock guarding breed. Allele frequencies for 10 microsatellite loci (PEZ01, FHC2054, FHC2010, PEZ05, PEZ20, PEZ12, PEZ03, PEZ06, PEZ08 and FHC2079) were determined in 103 unrelated Yugoslavian Shepherd Dog individuals. The loci revealed varied levels of polymorphism (five to 12 alleles), with an average of 7.83 per locus. Average values of observed heterozygosity and polymorphic information content (PIC) were 0.64 and 0.66, respectively. Nine out of 10 microsatellite markers were highly informative with PIC values higher than 0.5. The obtained value of combined power of exclusion (0.9989) confirms usefulness of this panel of microsatellites for parentage verification, while the value of combined power of discrimination of 0.9999 clearly shows that the panel can conclusively identify individual dogs. In conclusion, the results obtained suggest that the selected set of commercially available microsatellite markers may be used as a routine tool for parentage verification and individual identification in the Yugoslavian Shepherd Dog. Although analysis of genetic variability of the Yugoslavian Shepherd Dog was not the primary focus of the study, the established values of major diversity indices disclose a highly variable gene pool in the breed.


2020 ◽  
Vol 70 (2) ◽  
pp. 170-181
Author(s):  
Dimitrijević Vladimir ◽  
Ristanić Marko ◽  
Stanisić Ljubodrag ◽  
Drobnjak Darko ◽  
Urosević Milivoje ◽  
...  

AbstractThe Kangal Shepherd Dog is considered the most common dog breed of Turkish origin. This study investigated variations in ten autosomal microsatellite markers (PEZ01, PEZ03, PEZ05, PEZ06, PEZ08, PEZ12, PEZ20, FHC2010, FHC2054 and FHC2079) for the purposes of genetic diversity assessment of the Kangal breed. In addition, the use of markers was assessed in parentage testing and individual identification within the Kangal breed. The microsatellite markers were typed in 51 Kangal dogs. The total number of alleles in the study population was 69. The mean number of alleles per locus was 6.9, and varied from four (FHC2079) to 12 (PEZ12). The polymorphic information content (PIC) ranged from 0.52 (FHC2079) to 0.87 (PEZ12), with the mean value for all loci of 0.717. Power of exclusion (PE) in 10 microsatellites investigated varied between 0.143 (FHC2054) and 0.472 (PEZ08) per locus. In order to determine the efficiency of using microsatellites for individual identification in the Kangal breed, power of discrimination (PD) and matching probability (MP) were calculated for each microsatellite marker. The panel achieved high combined MP (6.77 × 10-10) and high combined PD value of 99.99999%. The obtained results may contribute to further recognition of the Kangal breed, and confirm that the investigated microsatellites enable a reliable parentage testing and individual identification of the breed.


Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Ljubodrag Stanisic ◽  
Vladimir Dimitrijevic ◽  
Predrag Simeunovic ◽  
Uros Glavinic ◽  
Biljana Jovanovic ◽  
...  

The aim of this study was to assess a panel of 17 microsatellites for parentage verification and individual identification in the endangered Balkan donkey breed. Allele frequencies for 17 microsatellite loci (AHT4, AHT5, ASB2, ASB17, ASB23, CA425, HTG4, HTG6, HTG7, HTG10, HMS1, HMS2, HMS3, HMS6, HMS7, LEX3 and VHL20) were determined in a 77 unrelated Balkan donkeys. Three loci (ASB2, HMS1 and ASB17) proved to be unsuitable and had been excluded from the investigation. Analysis of the remaining 14 loci revealed varied levels of polymorphism (three to 12 alleles), while the total number of observed alleles was 118 with an average of 8.42 per locus. Average values of observed heterozygosity and polymorphic information content (PIC) were 0.712 and 0.650, respectively. Twelve out of 14 microsatellite markers were highly informative with PIC values higher than 0.5. Only four loci were in HWE (HMS2, HMS6, HMS7 and HTG6). The obtained value of combined power of exclusion (0.9999) confirms usefulness of this microsatellite panel for parentage verification, while the value of combined power of discrimination of 0.9941 clearly approves the reliability of the panel for individual identification in Balkan donkeys.


2009 ◽  
Vol 137 (1-2) ◽  
pp. 43-46 ◽  
Author(s):  
Dragana Puzovic ◽  
Branka Popovic ◽  
Ivana Novakovic ◽  
Jelena Milasin

Introduction. Short tandem repeats and more specifically microsatellites represent a powerful tool in forensic medicine. In the past years, they have been extensively used in human identification and paternity testing. Objective The aim of the present study was to analyze two microsatellite markers in the Serbian population, i.e. to determine the number of alleles and the relevant forensic parameters. Methods. DNA was isolated from teeth samples using standard proteinase K digestion and phenol/chloroform alcohol extraction. PCR products were analyzed on polyacrilamide gels and visualized by AgNO3 staining. Forensic parameters were calculated using the Cervus software. Results. The loci D18S70 and D20S116 were analyzed on a sample of 70 unrelated, healthy adult individuals from Serbia. The number of alleles was determined and Hardy Weinberg equilibrium was confirmed for both loci. D18S70 and D20S116 demonstrated 6 and 8 alleles, respectively. The power of discrimination (PD) and the power of exclusion (PE) for the tested STR loci, D18S70 and D20S116 were 0.92 (PD), 0.41 (PE) and 0.95 (PD), 0.480 (PE), respectively. Conclusion. According to the presented data, D18S70 and D20S116 are most informative markers. Based on allelic frequencies and statistical parameters for forensic testing, it may be suggested that these two microsatellites represent useful markers for individual identification and parentage analysis in the Serbian population.


Sign in / Sign up

Export Citation Format

Share Document