Haplogroup E1b1a – Sub-Saharan
The Haplogroup E consists of three subclades or branches. Those are E-M96, E-P147, and E-M175. These, the branches of humanity that traces, their roots along the Y chromosome — son to father to grandfather to great grandfather backwards through our history and arguably a far back as 340,000 years ago.
Tracing the E Clade
The E Clade on the phylogenic tree shares a spot with the D Clade. While E-M96 is the most prevalent it holds within it the two other subclades E-P147 and E-M75.
E-P147 holds two lesser clades E-M33 and E-P177. The Haplogroup E-P147 is common throughout the African continent. E-M33 is more centralized within Africa and is found primarily within West Africa. The result of polymorphism — genetic isolation due to geographic and natural pressures — explains the variation within the E Haplo groups.
E-M215 – A Subclade of E-M96 — also known as E1b1b
To get to E1b1b you must follow the clades.
Haplogroup E — E-P147 — E-P177 — E1b1 — A split that takes you to E1b1a, E1b1b, and E1b2.
E1b1b or M215 is the only link forward and it further splits into E1b1b or M-35 and into E1b1b — The orgins of these subclades is West Africa and more specifically around the Horn of Africa. The polymorphism occurs because of natural selection where natural resources — food, shelter — are offset by death, starvation, war, and predation. As that process occurs, changes in the gene pool create distinctions within the larger population, especially as groups of people migrated away from Africa.
E1a1a is an early clade within the Haplogroup E and it occurs before E1b1b. It’s origins are thought to be from the Northeast Sundaland. While the origins are arguable, other schools of thought indicate a potential Taiwanese link.
What is important here is the argument about where mankind began. E1b1b is African, while E1a1a thought to originate in Southeast Asia. What is clear is that E1a1a is the clade that represents most of modern Asia, genetically and that E1b1b represents most of modern Africa. The argument ensues not only about where Y-DNA Adam first lived, but in echoes across modern arguments in politics, religion, and even economics. The migration of man occurs for various reasons. In Africa, the warming of the planet and the expansion of resources as the Pleistocene glacial period ends and for E1a1a which may have experienced the opposite end of that period of climate change. With the melting of the ice, coastal areas flooded and forces island swelling humans to flee or die. This is one of the explanations for the spread of E1a1a.
Africa or Asia?
Africa or Asia? Is that where the forefathers of man emerged? That argument is thick and violent at times, but the evidence speaks for itself. Haplogroup E — a twisted branch on the evolutionary tree of man — twisted, just as man himself is twisted. This is an argument over where and who we are is just beginning.
Y—DNA Adam A Man Among Men
Like the Borg, scientists named the most common ancestor of recent times to man as Y-MRCA. To translate to the Borgish naming system 1 of 1 though we fondly refer to this genetic grandfather to us all as Y-DNA Adam. The argument of which we mentioned earlier was whether or not Y-DNA Adam was African or Asian as one of those destinations becomes the cradle of humanity.
Today’s Interpretation of Y-DNA Adam
Read the news. Do black lives matter? The answer in terms of genetics is that it does not matter because we are all black. In every man, along the Y chromosome is a thread that reaches back through time and links us and our children to Y-DNA Adam. That is just the most basal example of who we are. However, this is not a political read. This is about expanding the understand of who we are and from where we came.
Why This is Important
While the current estimates put Adam as an organism that looks much like we do today on earth somewhere between 340,00-60,000 years ago. Scientifically, he represents the lives of every male that has lived since. Still, that assumes we are all the same when in fact, genetically, we are not. Phylogenetics divides us by clades and within the DE clade are two groups, both decedents of Y-DNA Adam, but different from each other. The D clade is found in people in Asia while the E clade is found in people from Africa.
Within the E clade is more divisions and of particular interest are the E1b1b and E1a1a clades. We, of course, refer to mutations within the ancestral line. E1b1b is a major highway straight back through much of humanity and it originates in Northern Africa, specifically around the Horn of Africa. E1A1A is also a mutation of the E clade. It differs from E1b1b as it has an origin in Indonesia perhaps even Taiwan.
It Is Bigger than Africa or Asia
The C and F clades on the Haplo-phylogeny tie the E clade to Europe. Y-DNA Adam is a common ancestor to us all. It is, however, the roadmap that exists between Y-DNA Adam and you I on which we focus. For between the stepping stones backward into our past are others, mutated, different, and yet related. Who are those people? They are and were people. Their genes live on through their descendants and the mix with our own to form even new versions of Y-DNA-Adam. What we learn by studying the world’s population genetically is that we are all brothers regardless of our skin color.
14 Jul 2016 / rarikola / 4