Doktorandseminarium i teoretisk datalogi
Gene Tree Reconstruction and
Orthology Analysis Based on an
Integrated Model for Duplications and
Lars Arvestad, Stockholm Bioinformatics Center och
Måndag 4 oktober, kl 13.15, rum 1537
The problem of estimating evolutionary trees from molecular sequences
has received a lot of attention in the last 30 years and a multitude
of models and methods have been suggested.
Despite the tremendous progress the field has seen, a few questions
have kept haunting biologists. What do you do when a tree constructed
from a gene tree clearly contradicts a species tree? Is it due to
recombination or a simply weak signal in the data? When the gene
family is large and several similar member-genes exists in one species,
how do you tell which genes are each others functional equivalents
in different species?
This talk will present progress on addressing these questions through
an MCMC approach using a new probabilistic model that for the first
time includes both sequence evolution as well as duplication and
loss of genes.
för mer information om teorigruppens informella doktorandseminarieserie.
Seminar in mathematical physics,
“Minimally Coupled Bosons on the
Thursday, September 23th, 10.15
Place: Theoretical physics seminar room,
AlbaNova, Roslagstullsbacken 11
Juha Loikkanen will defend his licentiate thesis
“Minimally Coupled Bosons on the Moyal Plane”
Opponent: Prof. Martin Cederwall (Chalmers)