...
Post A Reply
my profile
|
directory
login
|
register
|
search
|
faq
|
forum home
»
EgyptSearch Forums
»
Deshret
»
Challenge to Chimu
» Post A Reply
Post A Reply
Login Name:
Password:
Message Icon:
Message:
HTML is not enabled.
UBB Code™ is enabled.
[QUOTE]Originally posted by The Explorer: [QB] [QUOTE]Originally posted by MindoverMatter718: There is no guessing about this, and the fact that there is no evidence that the peoples you mention in Melanesia were any lighter or any selection to make them darker. The fact that Oceanic's represent OOA descendants the most, I.e, genetically and phenotypically. Is all the evidence we need to come to the conclusion that the ancestors of non Africans(a group of East Africans who left from equatorial Africa) were definitely black...[/QUOTE]Speaking of Melanesians, we are told... [i]The discordance between our Fst-based divergence values and allele frequencies in the Melanesian CEPH populations at ASIP largely stem from the relatively [b]low frequency of the ancestral allele[/b] in the [b]2 CEPH Island Melanesian populations[/b] relative to our [b]original Island Melanesian sample[/b]. These discrepancies make it difficult to determine if ASIP truly underlies broad pigmentation differences between darkly and lightly pigmented populations or instead inter-population variation at this locus can largely be explained by differences between Africans and non-Africans. The discordance between the [b]frequencies of the ASIP ancestral allele[/b] in our original Island Melanesian sample and the Melanesian samples from the CEPH panel may be indicative of both the complex demographic history of Island Melanesia (involving several migratory events (Spriggs 1997) and probable extensive genetic drift (Friendlaender 1975, 1987) as well as the importance of multiple loci in determining pigmentation phenotype[/i] - Norton, Kittles et al. Note that the sample of the "original Island Melanesians" showed up relatively greater frequencies of the ancestral state of the allele in question than the "CEPH Island Melanesians". Ps - From above... [i]These discrepancies make it difficult to determine if ASIP truly underlies broad pigmentation [b]differences between darkly and lightly pigmented populations[/b] or instead inter-population variation at this locus can largely be explained by [b]differences between Africans and non-Africans.[/b][/i] As I have noted elsewhere for the above... Thus possible further extensions of variations detected amongst Melanesians can be explained by successive demographic events [i]After[/i] their African ancestors migrated over 40ky ago. Whether the derived state has much of a "lightening" effect amongst sections of Melanesians or not, is trivial to the point that the ancestral state is predominantly found in equatorial Africans. [/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