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Sledge dogs are closely related to 9,500-year-old 'ancient dog'
EurekAlert! ^
| June 25, 2020
| University Of Copenhagen the Faculty of Health and Medical Sciences
Posted on 06/28/2020 7:27:36 AM PDT by SunkenCiv
'We have extracted DNA from a 9,500-year-old dog from the Siberian island of Zhokhov, which the dog is named after. Based on that DNA we have sequenced the oldest complete dog genome to date, and the results show an extremely early diversification of dogs into types of sledge dogs', says one of the two first authors of the study, PhD student Mikkel Sinding, the Globe Institute.
Until now, it has been the common belief that the 9,500-year-old Siberian dog, Zhokhov, was a kind of ancient dog - one of the earliest domesticated dogs and a version of the common origin of all dogs. But according to the new study, modern sledge dogs such as the Siberian Husky, the Alaskan Malamute and the Greenland sledge dog share the major part of their genome with Zhokhov.
'This means that modern sledge dogs and Zhokhov had the same common origin in Siberia more than 9,500 years ago. Until now, we have thought that sledge dogs were only 2-3,000 years old', says the other first author, Associate Professor Shyam Gopalakrishnan, Globe Institute.
...researchers have further sequenced genomes of a 33,000-year-old Siberian wolf and ten modern Greenlandic sledge dogs. They have compared these genomes to genomes of dogs and wolves from around the world.
'We can see that the modern sledge dogs have most of their genomes in common with Zhokhov. So, they are more closely related to this ancient dog than to other dogs and wolves. But not just that - we can see traces of crossbreeding with wolves such as the 33,000-year-old Siberian wolf - but not with modern wolves. It further emphasises that the origin of the modern sledge dog goes back much further than we had thought', says Mikkel Sinding.
(Excerpt) Read more at eurekalert.org ...
TOPICS: History; Science; Travel
KEYWORDS: dog; dogs; godsgravesglyphs; greenland; helixmakemineadouble; husky; malamute; siberia
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Dogs have been used for sledding in the Arctic as far back as ~9500 years ago. However, the relationships among the earliest sled dogs, other dog populations, and wolves are unknown. Sinding et al. sequenced an ancient sled dog, 10 modern sled dogs, and an ancient wolf and analyzed their genetic relationships with other modern dogs. This analysis indicates that sled dogs represent an ancient lineage going back at least 9500 years and that wolves bred with the ancestors of sled dogs and precontact American dogs. However, gene flow between sled dogs and wolves likely stopped before ~9500 years ago.Arctic-adapted dogs emerged at the Pleistocene-Holocene transition | Science 26 Jun 2020 | Vol. 368, Issue 6498, pp. 1495-1499
1
posted on
06/28/2020 7:27:36 AM PDT
by
SunkenCiv
To: 240B; 75thOVI; Adder; albertp; asgardshill; At the Window; bitt; blu; BradyLS; cajungirl; ...
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2
posted on
06/28/2020 7:28:10 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...
3
posted on
06/28/2020 7:28:25 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: SunkenCiv
4
posted on
06/28/2020 7:40:59 AM PDT
by
SteveH
To: SunkenCiv
To: SunkenCiv
I remember the Greek writer and soldier Xenophon was also a dog breeder. I have no idea what kind of dogs they had back then.
6
posted on
06/28/2020 7:43:10 AM PDT
by
yarddog
( For I am persuaded.)
To: SunkenCiv
what the hell is a “Sledge” dogs. Thought it was a typo for sled dogs, but they repeated it.
To: School of Rational Thought
8
posted on
06/28/2020 8:04:14 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: RoosterRedux
9
posted on
06/28/2020 8:05:05 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: SteveH
I kennel be any more surprised.
10
posted on
06/28/2020 8:06:04 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: yarddog
'Greek dog breeder' meant something else in ancient times...
11
posted on
06/28/2020 8:06:39 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: yarddog
12
posted on
06/28/2020 8:07:35 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: School of Rational Thought
A sledge is a sleigh or sled.
13
posted on
06/28/2020 8:11:12 AM PDT
by
gundog
( Hail to the Chief, bitches!)
To: SunkenCiv
I looked it shortly ago. I had never heard the use of "sledge" instead of "sled."
To: SunkenCiv
15
posted on
06/28/2020 8:12:41 AM PDT
by
mylife
(The Roar Of The Masses Could Be Farts)
To: SunkenCiv
maybe you are just keeping your imagination on short leash...
16
posted on
06/28/2020 8:16:16 AM PDT
by
SteveH
To: RoosterRedux
Sledge dogs?What did did you think 'Pound'puppies turned into? ;^)
To: SunkenCiv
Inuit will tie a sled dog bitch in heat so a wolf will mate with her. Genetic crossovers still happen.
18
posted on
06/28/2020 8:23:36 AM PDT
by
dirtboy
To: SunkenCiv
Shyam Gopalakrishnan?
Gesundheit!
To: SunkenCiv
This is more evidence of the same finding here -
" Regardless, this direct evidence suggests a longer timescale of wolf-dog population history and thus implies that the 11,000 - 16,000 years ago wolf-dog divergence inferred in a previous study should be recalibrated to 27,00040,000 years ago.
To examine shared ancestry between the ancient Taimyr wolf and a larger set of modern-day dog populations, we used data from 48 dog breeds genotyped at 170,000 SNPs and computed D statistics to assess whether each breed shared more alleles with the Taimyr wolf than a set of 15 modern-day gray wolves . We found clear evidence of a closer relationship between the Taimyr wolf and the Siberian Husky (Z = 4.3, p = 0.000009), Greenland Sledge Dogs (Z = 3.6, p = 0.00016), and, to a lesser extent, Chinese Shar-Pei and Finnish Spitz (p < 0.05) compared to other dog breeds"
Ancient Wolf Genome Reveals an Early Divergence of Domestic Dog Ancestors and Admixture into High- Latitude Breeds
20
posted on
06/28/2020 8:43:38 AM PDT
by
Varda
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