Genome sequencing comparisons with wolves, strays and dogs across the world has found Australia's dingoes have the highest loads of harmful mutations—and diversity levels that are 36% lower than the most inbred dogs.
The research led by the University of the Sunshine Coast established that the ancestral stock for the modern dingoes was much smaller than other canines, potentially creating a bottleneck effect that is still impacting theAs a result, the nation's largest land-based top-order predator is carrying higher loads of harmful and recessive mutations compared to other canines, increasing the threat of diseases, according to the study published inUniSC Senior Lecturer in Genetics Dr.
"For example, aerial baiting programs which realize a 90% population knockdown may initiate further bottlenecks and exacerbate the low genetic diversity and high mutational loads of targeted dingo populations with detrimental consequences," Dr. Subramanian said.Saliva samples were used to sequence the genomes of two wild dingoes from The Kimberley in Western Australia and western New South Wales, and a captive dingo from the Alpine region.
"The dingo had the lowest genetic variation compared to all other canines analyzed, except for Norwegian Lunde Hund and Bull Terrier dog breeds," Dr. Kumar said. These were a high dN/dS ratio , elevated number of homozygous deleterious amino acid changing SNVs and loss of function single nucleotide variants .
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