Quality of DNA extracted from formalin-fixed, paraffin-embedded canine tissues.

ABSTRACT: Veterinary pathology tissue banks are valuable resources for genetic studies. However, limited data exist as to whether quality DNA can be extracted from these tissues for use in canine genotyping studies. We extracted DNA from 44 formalin-fixed, paraffin-embedded (FFPE) tissue blocks from dogs; 9 of these dogs had DNA available from whole blood samples that had been banked. We genotyped DNA from 30 of 44 tissue blocks and 9 whole blood samples on the Illumina CanineHD BeadChip; DNA quality was insufficient in 14 of 44 samples from tissue blocks. There was significant correlation between the 260/280 ratio and single-nucleotide variation (SNV) call rate (p = 0.0276; r² = 0.162); 23 of 30 samples from FFPE were genotyped with > 65% call rates. Median pairwise identic

SUBMITTER: Dear JD 

PROVIDER: S-EPMC7438656 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature