rate of evolution of ribosomal RNAs in hyper-thermophiles

Martijn Huynen mah at santafe.edu
Tue Aug 6 16:55:21 EST 1996


Hi,

Woese(1987, Microb. Rev. 51 pp 221-271) pointed out that
the 16S ribosomal RNAs of hyperthermophilic Archaea have evolved
relatively slowly.

Does anybody know other references to this fact, and to possible
explanations ???

I tend to think that their slow evolution has to do with extra
thermodynamic constraints on their secondary structure, but 
I am probably not the first one to suggest that.

many thanks, Martijn



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