Welcome Guest [Log In] [Register]
Add Reply
New definitions of y hg C branches
Topic Started: Mar 25 2015, 04:46:22 PM (236 Views)
black man
The Right Hand
[ *  *  * ]
There are two different major branches, now, one being more or less North Asian and Amerindian, the other being very wide-spread but primarily eastern (i.e., Australian, Oceanian, SE Asian and East Asian). As usual, the data from China and India are unfortunately sparse. However, the positions of the samples within the new tree might already be worth mentioning in the K29+ branch:
- predominately South Asian M356+ branches end up as belonging to the B66+ group, which also includes the SE Asian B65+ branch, which itself is a branch of the K281+ group, which includes the B68+ sample from SE Asia. On top of that, the B68+ branch is parallel to the B477+ branch, which includes some more SE Asians as well as Papuans and Australians. So the carriers of the M356+ mutation might have distant ancestors who moved from SE Asia to South Asia.
- V20+ and M8+ ended up in the CTS11043+ branch of the CTS824+ group. And the only representative of the CTS5573+ branch parallel to the CTS11043+ branch happens to be Japanese. That makes a migration of the ancestors of present-day V20+ carriers from eastern Asia to Europe plausible.

Apart from that, we already knew from the papers of Zhong Hua et al. 2010 and Magoon et al. 2013 that M407+ and hgs parallel to it within the same clade are spread in China. This should have been explained in the light of the high STR diversity of South Siberian M407+ according to Kharkov et al. 2014 since there was no unambiguous distribution pattern among the M407+ samples of Zhong et al. 2010. Now, the results of Karmin et al. seem to once again emphasise this issue with them having found three parallel groups in East Asia and no less than nine different M407+ branches defined by SNPs detected in Buryats.

And according to the figures available to me, I suppose that the distribution is more or less like this right now if I'm not mistaken while in a hurry:
F2645+, Z1338-: 1 "CHS" (southern Han?) (Karmin et al.)
F2645+, Z1338+, Z1300-: Korean (Sabitov)
F2645+, Z1338+, Z1300-, M507+: 2 Xishuangbanna Tai (Lv?), 1 Japanese, 1 southern Kinh ( http://www.yfull.com/tree/C-F1067/ )
F2645+, Z1338+, Z1300+, K701+: 2 Beijing Han, 1 Bengali Bangladeshi ( http://www.yfull.com/tree/C-F1067/ )
F2645+, Z1338+, Z1300+, K555+: 1 Beijing Han, 1 Japanese ( http://www.yfull.com/tree/C-F1067/ )
F2645+, Z1338+, Z1300+, Page12+, K555+, M407+: 9 Buryats (Karmin et al.), 1 Japanese ( http://www.yfull.com/tree/C-F1067/ ), 2 "Chinese" and 1 "Indonesian" (Sabitov and Mendygaliev 2014)
F2645+, Z1338+, Z1300+, CTS2457+: 1 Korean, 1 Kurd (Sabitov and Mendygaliev)
F2645+, Z1338+, Z1300+, F948+: 2 "Chinese", 1 Japanese (Sabitov and Mendygaliev)
F2645+, Z1338+, Z1300+, Page12+, B73+: "Chinese" (Karmin et al.)

In order to check whether one or the other detail is correct, you might want to take a look at http://www.isogg.org/tree//ISOGG_HapgrpC14.html or http://www.yfull.com/tree/C-F1067/ . These two sites feature relatively many SNPs in their trees.

As for the Chinese, the fact that no samples other than those belonging to the F2645+ macro-group are displayed appears to imply that all Han Chinese in hg C* belong it. But that doesn't need to be the case since there could be sample bias, the most studied hgs being in the focus of interest only. Furthermore, I'd like to point to the fact that especially the presence of Korean, Japanese, Kurdish and Bengali samples can be interpreted in the sense of very much unexplored samples in most parts of Asia. Plus, do note the notorious absence of samples from southern China in particular.

Sources:
Karmin et al. 2015: A recent bottleneck of Y chromosome diversity coincides with a global change in culture http://genome.cshlp.org/content/early/2015/03/13/gr.186684.114/suppl/DC1
Kharkov et al. 2014: Gene Pool of Buryats
Magoon et al. 2013: Generation of high-resolution a priori Y-chromosome phylogenies
Sabitov and Mendygaliev 2014: Структура гаплогруппы С
Zhong Hua et al. 2010: Global distribution of Y-chromosome haplogroup C
http://www.isogg.org/tree//ISOGG_HapgrpC14.html
http://www.yfull.com/tree/C-F1067/
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
« Previous Topic · Y-chromosome: CF · Next Topic »
Add Reply