Comparative genomics

May/31 11:00
Jozef Schell seminar room Technologiepark 927 9052 Gent-Zwijnaarde

Seminar by Prof. Yves Van de Peer: 'Of dups and dinos: evolution at the K/Pg boundary'

Genome sequencing has demonstrated that besides frequent small-scale duplications, large-scale duplication events such as whole genome duplications (WGDs) are found on many branches of the evolutionary tree of life. Especially in the plant lineage, there is evidence for recurrent WGDs, and the ancestor of all angiosperms was in fact most likely a polyploid species. The number of WGDs found in sequenced plant genomes allows us to investigate questions about the roles of WGDs that were hitherto impossible to address.

Jun/27 14:00
Jozef Schell seminar room, Technologiepark 927 B-9052 Gent

Seminar by Dr. Frederik Leliaert: New discoveries at the base of the green plant lineage

We provide solid phylogenetic evidence that the enigmatic green seaweed order Palmophyllales together with the unicellular planktonic Prasinococcales form the deepest-branching clade of the Chlorophyta. Species of Palmophyllales typically grow in deep marine waters, and are characterized by a unique form of multicellularity, forming macroscopic plants that are composed of isolated and undifferentiated spherical cells embedded in an amorphous gelatinous matrix. Our phylogenetic results alter our understanding of morphological evolution in the green algae.


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