New Study: Man Possibly NOT Related to Neanderthal

Our genes and Neanderthal genes are 99.9% the same. It is the .1% difference that geneticists show around ~1-5% similar genes in that .1%. We share 99% of our genes with chimps. It's crazy what 1% can due.

"Parallel evolution never constitutes the same genes, but different genes with similar effects that result from them." JFWR are you sure about this? Can you give me a source for this claim? Neanderthals are currently classified as homo sapiens neanderthals. We are not talking about a far removed species, but one very closely linked with modern humans by a common ancestor 160,000 years removed (a very short time in evolutionary times). It also could be the genes that are represented as Neanderthal genes mutated out of existence in Africans, which is possible. It is possible that modern humans have shared genetic material with many archaic humans from a common ancestor, and those have not been identified yet or have been polymorphed out over the last 200,000 years. At the end of the day we need more genetic information from older samples to be sure.
 
ebAmerican said:
"Parallel evolution never constitutes the same genes, but different genes with similar effects that result from them." JFWR are you sure about this? Can you give me a source for this claim?
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I should probably not have said -never-. There are rare cases where the genetic mutation is so specific that it has to be the same gene reproduced multiple times by several species. However, in many of those cases it is a sort of "standing genetic variation" that is the source of this multiple origins of the same gene. That is, the gene was already existent in a population, but its prominence did not arise until the natural selective pressure was exerted. Think of how rare it is, for instance, that an entire population of insects should be killed by a single poison, on the account that it is almost certain that at least one of them has some degree of resistance which is then strongly selected for when they are the only remaining mating pairs.

They speak about it around here: https://whyevolutionistrue.wordpres...tation-in-fish-same-genes-used-over-and-over/

Neanderthals are currently classified as homo sapiens neanderthals.
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I'm pretty sure that Neanderthal man is Homo neanderthalensis. Neanderthal is not considered a subspecies of Homo sapiens from what I gather.

We are not talking about a far removed species, but one very closely linked with modern humans by a common ancestor 160,000 years removed (a very short time in evolutionary times). It also could be the genes that are represented as Neanderthal genes mutated out of existence in Africans, which is possible.
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Neanderthal man left Africa way before Homo sapiens. Why would the Eurasians maintain the genes shared by Neanderthals, then? And how would the entire group of genes be lost in Africa?
 
A tidbit from http://dienekes.blogspot.com/; Mitochondrial Eve may be older

"If the earlier Pan-Homo split is accepted, it would appear that Mitochondrial Eve may have lived earlier than commonly thought, perhaps by a substantial amount relative to the current 177ky estimate. If that is the case, then she may very well have not been an anatomically modern human, perhaps a late H. heidelbergensis individual in a population that was on its way to becoming H. sapiens."

A possible link to shared genetic material between hominid species. mtDNA Eve may have been a great grandmother to both Neanderthal and Sapiens.
 
ebAmerican said:
A possible link to shared genetic material between hominid species. mtDNA Eve may have been a great grandmother to both Neanderthal and Sapiens.
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That doesn't seem likely, since the outlier is L0, which is just about the most African haplogroup there is. It's African on down the tree for a while after that. I would expect some indication of a Neanderthal outlier haplogroup or haplogroup cluster if mtDNA Eve's matrilineal descendants included both Neanderthals and Sapiens.
 
Neanderthal was never in Africa. It diverged from homo heidelbergensis in Eurasia. Homo sapiens diverged from homo heidelbergensis in Africa. Because both species are from a common ancestor, it's not a far cry that both would develop similar genes for environmental adaption. This explains why Eurasians have neanderthal like dna and Africans do not. The process is called genetic polyphenism. Because of shared lineage with a common ancestor Sapiens have the ability to converge into neanderthal and vice versa.

If mtDNA Eve out dates (a new study proposing an older linage for L) the archeological time frame for modern humans and puts her in an archeological time frame for an archaic hominid, then she may not have been sapiens but a possible heidelbergensis.
 
Sparky your right about neanderthal if it's heidelbergnesis grandmother was far removed from sapiens heidelbergnesis grandmother. We need a heidelbergnesis sample from where early sapiens in Africa lived to be sure. Heidelbergnesis is dated to 600,000 years ago, which is a lot of time for genetic drift compared to both Neanderthal and modern Sapiens. mtDNA is not the best for testing consistencies in the genome because of their volitility for mutation, so LO really doesn't tell us the whole story.
 
ebAmerican said:
Neanderthal was never in Africa. It diverged from homo heidelbergensis in Eurasia. Homo sapiens diverged from homo heidelbergensis in Africa. Because both species are from a common ancestor, it's not a far cry that both would develop similar genes for environmental adaption. This explains why Eurasians have neanderthal like dna and Africans do not. The process is called genetic polyphenism. Because of shared lineage with a common ancestor Sapiens have the ability to converge into neanderthal and vice versa.

If mtDNA Eve out dates (a new study proposing an older linage for L) the archeological time frame for modern humans and puts her in an archeological time frame for an archaic hominid, then she may not have been sapiens but a possible heidelbergensis.
Click to expand...

Sounds logical, but Neanderthals spent almost a million years in Europe, Home Sapiens about 50 thousand. Which one, do you think, was better adapted to Eurasian climatic conditions? Other question is, is 50 thousand years enough to develop full adaptation?
We should also mention that it is much easier to piggy back on already developed adaptational traits of Neanderthals, then wait for mutations to happen spontaneously. Off course, as long as they could produce hybrid offspring, it was the easiest way to use some Neanderthal genome to conquer north faster.
 
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