Román Peña, Alejandra Del Pilar
- Institutionen för husdjurens biovetenskaper, Sveriges lantbruksuniversitet
- Universidad Mayor de San Andres
Sammanfattning
Llama (Lama glama) and alpaca (Vicugna pacos) farming in the Bolivian highlands in mixed camelid herds can lead to crossbreeding and introgression, particularly affecting alpacas. This genetic exchange has important implications for camelid phylogeny and production traits, including fiber and meat quality. To investigate patterns of gene flow, we analyzed sex-specific markers (mitochondrial D-loop and Y-chromosome DBY gene) in llamas, alpacas, and hybrids from three Bolivian production systems: Catacora, Ulla Ulla, and Curahuara de Carangas. We included sequences from vicu & ntilde;as and guanacos and identified 37 mitochondrial D-loop haplotypes, as well as three Y-chromosomal DBY haplotypes, revealing significant asymmetric introgression. Mitochondrial DNA analysis showed that 6.7 % of llamas and 53.3 % of alpacas carried introgressed haplotypes, indicating extensive maternal gene flow. In contrast, Y-chromosome introgression was lower (
Nyckelord
Domestic camelids; Hybridization; Introgression; Asymmetric gene flow
Publicerad i
Small Ruminant Research
2026, volym: 254, artikelnummer: 107653
Utgivare: ELSEVIER
SLU författare
UKÄ forskningsämne
Genetik och förädling inom lantbruksvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.smallrumres.2025.107653
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/144963