Neanderthal y-DNA?

[Mnd123]

QUOTE
"I admit this is kind of out there, but are there any researchers currently testing for Neanderthal y-DNA in the current human population? Please hear my out for these reasons:
1. The world population sits a just slightly more than seven billion
2. Evidence exists that Neanderthal could have existed up until 24,000 years ago, certainly 32,000 years ago
3. Five years ago it was the opinion of mainstream science Neanderthal and Cro-Magnon did not breed
4. Mountain regions in Europe and especially Russia could better protect, in theory, ancient paternal lines

My thinking is that our planet has a whole bunch of people on it and just a tiny fraction have been tested for y-haplogroups. The list of ingredients that makes up modern man grows as our knowledge grows. Another exciting possibility would be the discovery of Denisovan paternal lines. The rugged and remote islands of New Guinea and Borneo could potentially hold a small treasure trove of unique y-lineage. Could the current y-tests pick up foreign DNA or would the samples kick out as contaminanted?"

What do you think?

[Mnd123]

Can a mod edit the title? --> "Neanderthal y-dna?"

[Artek]

Any neanderthal Y-DNA line doesn't exist among tested people up to now and probably won't in the future.

[Kale]

I believe there was a study fairly recently showing that Neanderthals were just different enough from us to make individuals and hybrids with their sex chromosomes less fertile. It would have been weeded out even under neutral selection.

[Prisoner Of Ice]

We don't have any neanderthal y-dna yet, at least not released. The altai neanderthal has y-dna and I assume we will see it soon but no paper has been published yet.

From what I read it seemed like neanderthal DNA they found hung off of the A00 y-dna clump.

It's not common to do a full y-dna scan yet in humans though it will be soon. So people could actually have neanderthal y-dna and be slipping through the cracks.

[Prisoner Of Ice]

While studying the Neanderthal genome, Krause et al., (2007) [2] found that two of their Sidrón Neanderthal specimens (Sidrón 1253 and Sidrón 1351c) were males. They then tested them at the five positions that mark the main nodes of Human branches (i.e. the splitting points of our Y chromosome haplogroups) in both Eurasia and Africa. They noticed that "all 15 Y chromosomal products for the five assayed positions show the ancestral allele" [2]. In other words, the ancestral or chimpanzee-like state was found. They did not find any specifically Neanderthal-like state. This is odd, considering that 7 million years separate chimps from Neanders, why would they both share the markers in their Y chromosomes and humans, a mere 300 ky away don't. It may be an error in their sequencing.

Admitting the paucity in their sampling and that these Y-chromosomes may appear in extremely low frequencies among modern human populations, the authors conclude:"These [Neanderthal] Y chromosome results must derive, then, either from Y chromosomes that fall outside the variation of modern humans or from the very rare African lineages not covered by the assay..." [2], in other words, the Neanderthal Y chromosomes may be similar to those of modern humans that were not screened for.

[Prisoner Of Ice]

http://patagoniamonsters.blogspot.com/2014/05/a-shared-y-chromosome-lineage.html

I can't edit my postbecause site is slow. But neanderthal y-dna could actually be A1 or A00.



I must point however, that according to Figure S1, the "markers" chosen by Krause et al., screened only certain branches of the Y chromosome tree: (i) and (ii) the split that leads to all haplogroups downstream from the A clade. (B, C,.... R2). (iii), The one leading to B. (iv) The one leading to P, (and therefore Q), R1, R2. And (iv) the one leading to A2.

So the Neanderthal Y chromosomes could belong to Haplogroups A1 and A3, which were not screened for. Or, an option that is evident, but they did not consider it at all: Neanderthal Y chromosomes are identical to those of Modern Humans and cannot be told apart from them.

Actually, isn't it surprising that not one Neanderthal Y (or X with its mtDNA) chromosome survived until our days? We have a considerable amount of autosomal genetic content introgressed from our relatives, the Neanderthals, but their mithocondria and their sex determining chromosomes did not survive. Why?



There is y-dna found for altai neanderthals as well but I can't seem to find more info.

[Kale]

http://patagoniamonsters.blogspot.com/2014/05/a-shared-y-chromosome-lineage.html

I can't edit my postbecause site is slow. But neanderthal y-dna could actually be A1 or A00.



There is y-dna found for altai neanderthals as well but I can't seem to find more info.

I can't imagine any y-dna would have survived, just because of how it gets overrun by every migration. Mtdna on the other hand I'd expect to see at rates of a few tenths of a percent, but still present. Considering neanderthal mtdna so far sequenced coincidentally shares mutations with X and W or I and whatnot, I wouldn't be surprised if multiple people got commercial testing done, having neanderthal mtdna, and their results just came back as X because the companies don't do full sequencing.

[Prisoner Of Ice]

They would probably both trickle out unless they are selected on.

They tested the altai neanderthal. He tested negative for all tests. But he could be A00.

[Black Wolf]

Neanderthals are quite different than Homo Sapiens when it comes to Y-DNA. There most likely is no Neanderthal Y-DNA left.

[King Claus]

Neanderthals are quite different than Homo Sapiens when it comes to Y-DNA. There most likely is no Neanderthal Y-DNA left.
You are quite neanderthal your self.

[Prisoner Of Ice]

Neanderthals are quite different than Homo Sapiens when it comes to Y-DNA. There most likely is no Neanderthal Y-DNA left.

They could be a00, a1 or a3.