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On the nature of heterotachy

Presented by: 
P Lockhart [Massey]
Monday 17th December 2007 - 16:30 to 16:50
INI Seminar Room 1
Session Chair: 
Kathi Huber

Heterotachy describes different lineage specific rates of evolution at individual sites in a multiple sequence alignment. Different underlying processes could contribute to this phenomenon. We discuss the form of heterotachy that is likely to occur in Nature. We show using simulations that under a biologically realistic model of heterotachy tree building can have low reconstruction accuracy. We discuss this problem.

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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons