...
Post A Reply
my profile
|
directory
login
|
register
|
search
|
faq
|
forum home
»
EgyptSearch Forums
»
Egyptology
»
Genome-wide ancestry of 17th-century enslaved Africans from the Caribbean
» Post A Reply
Post A Reply
Login Name:
Password:
Message Icon:
Message:
HTML is not enabled.
UBB Code™ is enabled.
[QUOTE]Originally posted by xyyman: [QB] Quote: Divergence time of the STM1 Y-chromosome lineage Upon merging STM1 data with related modern Y-chromosome sequences, we estimated a splittime of roughly 8500 years [b]between the STM1 lineage and the CLOSEST FULLY SEQUENCED Y CHROMOSOMES currently in the literature, a cluster of eleven R1b1c3-V35 sequences reported in a sample of 1204 Sardinians [/b](42). To do so, we estimated the length of time between the STM1- lineage divergence and the emergence of R1b, and then we compared this interval to the age of R1b (Fig. S17). [b]Francalacci et al. (42) report a cluster of 29 R1b1c-V88 lineages from Sardinia.[/b] Though the terminal branch lengths from this study must be viewed with caution due the low-pass sequencing approach, the internal branches had high effective coverage due to the superposition of multiple sequences. …….). Consequently, approximately 103.1 (30 + 51 + 22.1) SNPs accumulated between the emergence of R1b and the time when the[b] STM1 lineage diverged from R1b1c3-V35. [/b]Because this study was based on 8.97 Mb of sequence, whereas that of Underhill et al. (37) analyzed 10.35 Mb, we must scale the mutation period by a factor of 1.154. Thus, we estimate that this interval corresponds to 14.5 ky (103.1 SNPs ・ 1.154 ・ 122 years/SNP). Consequently, we conclude that it was approximately 8.5 kya that the [b]Y-chromosome lineage carried by STM1 diverged from that carried by the 11 Sardinians.[/b] Read more: http://egyptsearchreloaded.proboards.com/thread/1908/slave-voyages-database-zoutseeg-slaves#ixzz4k55QonEi [/QB][/QUOTE]
Instant Graemlins
Instant UBB Code™
What is UBB Code™?
Options
Disable Graemlins in this post.
*** Click here to review this topic. ***
Contact Us
|
EgyptSearch!
(c) 2015 EgyptSearch.com
Powered by UBB.classic™ 6.7.3