Pitfalls reconstructing the last common ancestor of chimpanzees and humans
نویسندگان
چکیده
منابع مشابه
Fossil hominin shoulders support an African ape-like last common ancestor of humans and chimpanzees.
Reconstructing the behavioral shifts that drove hominin evolution requires knowledge of the timing, magnitude, and direction of anatomical changes over the past ∼6-7 million years. These reconstructions depend on assumptions regarding the morphotype of the Homo-Pan last common ancestor (LCA). However, there is little consensus for the LCA, with proposed models ranging from African ape to orangu...
متن کاملModern African ape populations as genetic and demographic models of the last common ancestor of humans, chimpanzees, and gorillas.
In order to fully understand human evolutionary history through the use of molecular data, it is essential to include our closest relatives as a comparison. We provide here estimates of nucleotide diversity and effective population size of modern African ape species using data from several independent noncoding nuclear loci, and use these estimates to make predictions about the nature of the an...
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Many regulatory genes appear to be utilized in at least superficially similar ways in the development of particular body parts in Drosophila and in chordates. These similarities have been widely interpreted as functional homologies, producing the conventional view of the last common protostome-deuterostome ancestor (PDA) as a complex organism that possessed some of the same body parts as modern...
متن کاملExperimental search for minimal organisms and the last universal common ancestor: Reconstructing the Ur-Organism
T wo questions that should be closely related have historically been studied with very different approaches. One is what constitutes a minimal living system, whether minimal cell or minimal self-contained ecosystem. The other is what actual system was the last universal common ancestor (LUCA) of all modern cells. As the LUCA is supposed to have been a bottleneck through which all life passed be...
متن کاملIn search of the last common ancestor: new findings on wild chimpanzees.
Modelling the behaviour of extinct hominins is essential in order to devise useful hypotheses of our species' evolutionary origins for testing in the palaeontological and archaeological records. One approach is to model the last common ancestor (LCA) of living apes and humans, based on current ethological and ecological knowledge of our closest living relations. Such referential modelling is ba...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2016
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1524165113