Cross-species amplification, non-invasive genotyping, and non-Mendelian inheritance of human STRPs in Savannah baboons.

Journal Article (Journal Article)

Twenty-nine human microsatellite primer pairs were screened for their utility in the cross-species amplification of baboon DNA derived from both blood and feces as part of a larger study to identify paternal half sisters in a population of wild baboons (Papio cynocephalus). Forty-one percent (12/29) of the human primers successfully amplified baboon DNA. Of these 12 primers, six amplified fragments that were both polymorphic and heterozygous (mean number of alleles = 6, mean heterozygosity = 87%) and yielded repeatable results. However, only five of these six simple tandem repeat polymorphisms (STRPs) showed patterns of Mendelian inheritance (i.e., mothers and offspring shared at least one allele at each locus), and were therefore useful for determining relatedness between individuals. Analysis of the sixth primer revealed non-Mendelian inheritance, i.e., three of the six known mother-daughter pairs had no shared alleles. This failure was probably due to non-specific fragment amplification, and may have resulted from a different STRP locus being amplified in mother and daughter. This finding highlights the importance of sampling DNA from known parent-offspring pairs when screening microsatellite primers for genetic studies. Multiple, independent replications of genotypes and Mendelian checks are both particularly important when using cross-species amplification or when using a low-quality source of DNA.

Full Text

Duke Authors

Cited Authors

  • Smith, KL; Alberts, SC; Bayes, MK; Bruford, MW; Altmann, J; Ober, C

Published Date

  • August 2000

Published In

Volume / Issue

  • 51 / 4

Start / End Page

  • 219 - 227

PubMed ID

  • 10941438

Electronic International Standard Serial Number (EISSN)

  • 1098-2345

International Standard Serial Number (ISSN)

  • 0275-2565

Digital Object Identifier (DOI)

  • 10.1002/1098-2345(200008)51:4<219::aid-ajp1>;2-g


  • eng