BACKGROUND Null alleles complicate parentage testing because they do not contribute positively to phenotypes.Objectives. To survey South African populations for null alleles at short tandem repeat (STR) loci used in parentage testing. METHODS Paternity case data were scanned for apparent contradictions compared with Mendelian inheritance that could be due to null alleles. Estimates of null al...

Accurate pedigree information is critical to animal breeding systems to ensure the highest rate of genetic gain and management of inbreeding. The abundance of available genomic data, together with development of high throughput genotyping platforms, means that single nucleotide polymorphisms (SNPs) are now the DNA marker of choice for genomic selection studies. Furthermore the superior qualitie...

DNA fingerprinting is a powerful test for parentage and paternity testing of cattle. The mechanism of genetic identification using DNA markers is outlined with a brief description of theory and methodology and examples provided to demonstrate how it works. Theoretical expectations of the test are discussed and results obtained to date presented.

We develop fractional allocation models and confidence statistics for parentage analysis in mating systems. The models can be used, for example, to estimate the paternities of candidate males when the genetic mother is known or to calculate the parentage of candidate parent pairs when neither is known. The models do not require two implicit assumptions made by previous models, assumptions that ...

Abstract Population studies were carried out on the Y-specific short-tandem-repeat (STR) polymorphisms DYS19, DYS385 I+II, DYS389 I+II, DYS390, DYS391, DYS392, and DYS393 in population samples from North India, Turkey and West Germany. In the German population, a highly unusual haplotype was observed. Sequence analysis revealed, that the variant allele DYS392*11.1 was caused by an insertion of ...

In the last decade, human diallelic InDel polymorphisms have become promising genetic markers in forensic identi?cation cases and biogeographic inference of biological samples [1,2]. InDels can be used successfully highly degraded DNA may play an important role as e? ;ective supplement for existing personal identi?cation. also a good choice population studies, parentage testing, missing person ...

The aim of this study was to evaluate whether the Goldeneye 20A system (containing 19 short tandem repeats) can avert the shortage of duo parentage tests. Among routine cases typed by the Identifiler system, we identified 42 motherless cases, 2 fatherless cases, and 34 trio cases containing 1 locus mismatch and 4 motherless cases with 2 locus mismatches. One true trio case was rejected by fathe...