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RE: *Kharmerungulatum*, placental phylogeny, and stuff



> Then came this paper
> http://www.pnas.org/cgi/content/full/103/26/9929
> (free 
> online access). It uses a quasi-morphological
> character that is almost 
> completely immune to convergence: retroposon
> insertion. The probability that 
> the same retroposon inserts twice independently into
> the same random place 
> in a genome sequence, and does so at the same random
> truncated length 
> (replication of the very long retroposons of the
> family used here often 
> stops prematurely), is negligible; reversals are
> just about impossible.

I am more wait-and-see on that.
 
Locus INT283: supports Carnivora + Pholidota +
Perissodactyla + Cetartiodactyla clade, to the
exclusion of Chiroptera
Loci INT165, INT265, INT382, and INT391: support
Carnivora + Perissodactyla + Chiroptera clade, to the
exclusion of Cetartiodactyla.

This
http://www.genome.org/cgi/content/abstract/11/12/2050
suggests that L1 LINE *insertion* is indeed (by and
large; see doi:10.1007/s00439-005-1321-0) random, but
that their eventual fate is not.

doi:10.1016/j.gene.2005.09.036 would also be
interesting in this context, as well as
doi:10.1007/s00412-004-0301-9 and
doi:10.1093/nar/gkm317


Eike


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