Justdroppedin
04-30-2023, 11:56 AM
https://i.redd.it/au89d46giwwa1.jpg
From the Xolos wiki page:"A 1999 genetic study using mitochondrial DNA found that the DNA sequences of the Xoloitzcuintle were identical to those of dogs from the Old World.[7] In 2018, an analysis of DNA from the entire genome indicated that domesticated dogs entered North America from Siberia for 4,500 years and were isolated for the next 9,000 years. After contact with Europeans, these dogs were replaced by Eurasian dogs and their local descendants. The pre-contact dogs exhibited a unique genetic signature that is now almost gone[8] due to their assimilation into the Eurasian dog gene pool. In 2020, the sequencing of ancient dog genomes indicates that in two Mexican breeds the Chihuahua and Xoloitzcuintli derive 4% and 3% of their ancestry from pre-colonial dogs,[9] almost entirely being descended from Eurasian dogs."
From the Xolos wiki page:"A 1999 genetic study using mitochondrial DNA found that the DNA sequences of the Xoloitzcuintle were identical to those of dogs from the Old World.[7] In 2018, an analysis of DNA from the entire genome indicated that domesticated dogs entered North America from Siberia for 4,500 years and were isolated for the next 9,000 years. After contact with Europeans, these dogs were replaced by Eurasian dogs and their local descendants. The pre-contact dogs exhibited a unique genetic signature that is now almost gone[8] due to their assimilation into the Eurasian dog gene pool. In 2020, the sequencing of ancient dog genomes indicates that in two Mexican breeds the Chihuahua and Xoloitzcuintli derive 4% and 3% of their ancestry from pre-colonial dogs,[9] almost entirely being descended from Eurasian dogs."