title: DNA profile of dog feces as evidence to solve a homicide.
abstract: Dog fecal samples were collected at the crime scene and from the shoes of the suspect to see whether they could be linked. DNA was genotyped using a 145bp fragment containing a 60bp hotspot region of the mitochondrial DNA (mtDNA) control region. Once the species origin was identified, sequences were aligned with the 23 canine haplotypes defined, showing that evidence and reference had 100% identity with haplotype 5. The frequency of haplotype 5 and the exclusion power of the reference population were 0.056 and 0.89, respectively. The forensic index showed that it was 20 times more likely that the evidence belonged to the reference dog than to some other unknown animal. The results support that the mtDNA hypervariable region 1 (HV1) is a good alternative for typing in trace or degraded casework samples when the STR panel fails, and demonstrate the utility of domestic animal samples to give additional information to solve human legal cases.
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina.
authors: L S
authors: LS
authors: Barrientos
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina.
authors: J A
authors: JA
authors: Crespi
authors: GECOBI - Grupo de Genética y Ecología en Conservación y Biodiversidad, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. Angel Gallardo 470, C1405DJR Buenos Aires, Argentina.
authors: A
authors: A
authors: Fameli
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina.
authors: D M
authors: DM
authors: Posik
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina.
authors: H
authors: H
authors: Morales
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina.
authors: P
authors: P
authors: Peral García
authors: IGEVET - Instituto de Genética Veterinaria (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, UNLP, La Plata, Buenos Aires, Argentina. Electronic address: ggiovam@fcv.unlp.edu.ar.
authors: G
authors: G
authors: Giovambattista
mesh_terms: D000818:Animals; D000829:Animals, Domestic / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D004285:Dogs / Q000235:genetics*; D005243:Feces; D044707:Forensic Sciences; D060005:Genotyping Techniques; D006708:Homicide
chemical_list: D004272:DNA, Mitochondrial
keywords: Dog; Feces; Forensic sciences; Mitochondrial DNA; Non-human DNA