Y chromosome so distinctive that it reveals new information about the origin of our s

[ahernandez]

Interesting article!

http://www.newscientist.com/article/...years-old.html

[1_mke]

Well, this is VERY interesting but I wonder what this will mean to the current Y DNA haplogroups.

This also makes me wonder if we'll see a Neanderthal mtDNA or Y chromosome in the wild at some point.

[Mylineage]

Interesting

That was really interesting, thanks for sharing.

[vinnie]

Unfortunately, the article doesn't mention that Hammer learned about the haplotype from Bonnie Schrack, one of the volunteer administrators of the A and J Projects who first noticed it. Without her keen eye, none of this may have been brought to light. Congratulations Bonnie, and all who worked on this!

[MMaddi]

Unfortunately, the article doesn't mention that Hammer learned about the haplotype from Bonnie Schrack, one of the volunteer administrators of the A and J Projects who first noticed it. Without her keen eye, none of this may have been brought to light. Congratulations Bonnie, and all who worked on this!

I wholeheartedly agree with you. Bonnie, a citizen scientist, played an instrumental role in this discovery. She is named as one of the co-authors, along with Thomas Krahn of FTDNA's lab and Dr. Hammer, of the scientific paper announcing the discovery. See http://www.cell.com/AJHG/retrieve/pii/S0002929713000736

[canaryislandgirl]

FYI !!! FYI !!! FYI !!! FYI !!!


The link to the article above contains a virus. My Norton 360 shut it down and gave me warnings about the virus that it blocked that are on that link.

I don't know how to get the link removed.

If you clicked on the link and were able to read the article, then you either don't have antivirus protection or it didn't work.

You should probably run a scan on your computer to check it.

I am referring to the first link at the top of this page that has the article on the news scientist.com .

[gtc]

If you clicked on the link and were able to read the article, then you either don't have antivirus protection or it didn't work.

... or you got a false positive.

No problem reported by Avast! and it is savage on dangerous sites.

[lc0]

details?

Interesting, thanks! 2 questions

a) so what exactly is the ydna profile??? Is it on ysearch? what about snp's? I presume this person can't have any of the ordinary snp's that characterize the standard haplogroups...?
b) if the ydna is similar to a small cluster of men in cameroon, are those men also of a/this special linage? If not, why not. Seems odd, no?

[josh w.]

I have seen tables from the Hammer paper. As I recall, they estimated the time of separation between the African American male and the group of African males from the Mbo tribe to be about 17 k years One note of caution. Using Cruciani's estimate of mutation rates, the age of 'Adam' fits in with previous estimates according to Hammer's paper. That is, Hammer used a slower rate of mutation than Cruciani.

[josh w.]

I have seen tables from the Hammer paper. As I recall, they estimated the time of separation between the African American male and the group of African males from the Mbo tribe to be about 17 k years One note of caution. Using Cruciani's estimate of mutation rates, the age of 'Adam' fits in with previous estimates according to Hammer's paper. That is, Hammer used a slower rate of mutation than Cruciani.

I should have said that the confidence interval of the Cruciani based mutation rate probably overlaps with previous estimates of the age of 'Adam'.

[lc0]

hmmm

Here's a few more links of relevance to those that are new on the subject

http://dna-explained.com/2012/11/16/the-new-root-haplogroup-a00/

http://www.haplogroup-a.com./2012-11...ntation-1a.pdf
(Bonnie Schrack's slides)

I recommend especially the last link. I read the full paper as well, but in a way these two links have a lot more interesting background information.

Now the funny thing is that of the publicly available data this was the (sofar) sole unqiue person with that ancient trait. (excluding the already available Mbo ydna that wasn't part of the general database).

That tells me that we cannot exclude that one day we find a male person that has so unique ydna that it must/could be attributed to neanderthal?

[josh w.]

Here's a few more links of relevance to those that are new on the subject

http://dna-explained.com/2012/11/16/the-new-root-haplogroup-a00/

http://www.haplogroup-a.com./2012-11...ntation-1a.pdf
(Bonnie Schrack's slides)

I recommend especially the last link. I read the full paper as well, but in a way these two links have a lot more interesting background information.

Now the funny thing is that of the publicly available data this was the (sofar) sole unqiue person with that ancient trait. (excluding the already available Mbo ydna that wasn't part of the general database).

That tells me that we cannot exclude that one day we find a male person that has so unique ydna that it must/could be attributed to neanderthal?

Thanks for the links. I have not seen the original paper. As a result I am a bit confused. Did the American individual split off from the Mbo 500 years ago or 17,000 years ago. Also did Hammer and Cruciani use the same mutation rates.

[lc0]

Did the American individual split off from the Mbo 500 years ago or 17,000 years ago.

The line that Mbo and the american person belong to (A00) split off from now is called A0 for 340kya (range 240-580 kya), the split between the ~7 mbo and the the american individual is estimated to 17kya.

Of course the 'new' adam at 340kya was not alone, there were probably 100's or 1000's of these adam's: either they all had the same yst and snps because with small populations there are going to be few variations if any, or the male descendancy lines all died-out but for two (one becoming A00 the other A0).

[A1A]

Interesting article!

http://www.newscientist.com/article/...years-old.html

Very interesting. What will be really good is when they link up Perry's Y to an existing living being: it will say a lot about us.

And BTW: no virus notice here either.

[purple flowers]

OK so they keep telling me that they can't a see a persons phenotype or even what race they are from a his Y haplogroups but on the other hand now they say they can see if they have whole different form of being from those mutations. ok