DARWIN'S TREE HAS BEEN CHOPPED DOWN.
Years back, some group of scientist were able in making comparisons of genetic codes,which include dozens of different single-celled organisms including those of both plant and animals. Their assumptions was that the comparison would confirm the branched “tree of life” which was proposed by Charles Darwin. But, this wasn't the case. 
UNCOVERED RESEARCH
In 1999 a biologist named Malcolm Gordon said that “Life appears to have had many origins. The base of the universal tree of life appears not to have been a single root”
When he was questioned if there's any evidence that all major branches of life is/are connected to a single Root as Charles Darwin believed, Gordon replied that “ traditional version of the theory of common descent seemingly doesn't apply to kingdoms as presently acknowledged. It presumably doesn't apply to many, if not all, phyla, and possibly also not to many classes within the phyla”
Recent research continues to dispute Charles Darwin's theory of common descent. Example, 9 years ago an article in New scientist magazine cited evolutionary scientifist Eric Bapteste as saying; “No evidence at all that the tree of life is a reality”. The same article cited evolutionary biologist Micheal Rose as saying: “The tree of life is being politely buried, we all know that. What's less accepted is that our whole fundamental view of biology needs to change”.