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Losing Teeth, But Keeping Genes
The Loom —
... In the journal PLOS Genetics, Mark Springer of the University of California and his colleagues have published an intriguing study of how teeth–and the genes for teeth–have faded away over the past 50 million years. In particular, they looked at enamel, the tough covering that caps the teeth of humans and other vertebrates. ...
Losing Teeth, But Keeping Genes
3quarksdaily —
... In the journal PLOS Genetics, Mark Springer of the University of California and his colleagues have published an intriguing study of how teeth–and the genes for teeth–have faded away over the past 50 million years. ...
Breaking news: evidence for evolution found!
Genomicron —
... It's a cool study, linking fossil and genomic data. But it's not cool because it provides "fresh support for Charles Darwin's theory of evolution". This is about the historical path and genetic mechanisms of evolution -- the fact has been well established for 150 years. ...
Dead genes for tooth enamel
Why Evolution Is True —
... A new paper in PLoS Genetics continues the search for predicted dead genes — this time for genes that once made tooth enamel — and finds a lot of these wrecks. They’re exactly where you expect to find them — in toothless animals long thought to have descended from animals with teeth. So the “theory” of evolution is once again confirmed, although we hardly need further confirmation. But this paper goes beyond a mere and redudant proof of common ancestry. The authors make models of how the “enamel” genes degenerated, and, ...
Breaking News: Evidence For Evolution Found!
Scientific Blogging —
... It's a cool study , linking fossil and genomic data. But it's not cool because it provides "fresh support for Charles Darwin's theory of evolution". This is about the historical path and genetic mechanisms of evolution -- the fact has been well established for 150 years. Here's the actual abstract and author summary: Abstract Vestigial structures occur at both the anatomical and molecular levels, but studies documenting the co-occurrence of morphological degeneration in the fossil record and molecular decay in the genome are rare. Here, we use morphology, the fossil record, ...
Enamelin gene loss in toothless mammals
john hawks weblog —
Jerry Coyne describes a new paper on the accumulation of loss-of-function mutations to ENAM in lineages with tooth reductions: "Dead Genes for Tooth Enamel".
A new paper in PLoS Genetics continues the search for predicted dead genes — this time for genes that once made tooth enamel — and finds a lot of these wrecks. They’re exactly where you expect to find them — in toothless animals long thought to have descended from animals with teeth. So the “theory” of evolution is once again confirmed, although we hardly need further confirmation. But ...
