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Terminal Growth, Segmentation and the Evolution of Metazoan Body Plan Regionalization

Nigel Hughes (University of California, Riverside) and David Jacobs (University of California, Los Angeles); Contact: nigel.hughes@ucr.edu


Financial support for this symposium is provided by the NASA Solar System Exploration Division, SICB, and the Palaeontological Association.




Friday 7th January 2005

8.00-8.30am: Rich Mooi (California Academy of Sciences), Bruno, D, and Wray, G. - Arrays in rays: terminal addition in echinoderms by the "Ocular Plate Rule"

8.30-9.00am: Olivier Pourquié (Stowers Institute) - Segmental Patterning of the Vertebrate Axis

9.00-9.30am: Thom Kaufman (University of Indiana) - The Role of Gap and Pair Rule Genes in the Segmentation of the Germband of Oncopeltus

9.30-10.00am: Graham Budd (Uppsala University) - The evolution of terminal patterning in arthropods

10.00-10.30am: Wim Damen (Köln University) - Terminal addition in arthropods: The molecular basis of segmentation in spiders and millipedes

10.30-11.00am: COFFEE.

11.00-11.30am: KEYNOTE. Alessandro Minelli (University of Padova) - A morphologist's perspective on terminal growth and segmentation

11.30-12.00am: KEYNOTE. Nipam Patel (University of California, Berkeley) - The Evolution of Segmentation - Mechanisms of Terminal Addition

LUNCH

1.00-1.30pm: Giuseppe Fusco (University of Padova) - Segment number and segmentation performances in arthropods

1.30-2.00pm: Wallace Arthur (National University of Ireland, Galway) - Genetic, developmental and environmental aspects of variation in centipede segment numbers

2.00-2.30pm: Nigel Hughes (University of California, Riverside) - Historical experiments in terminal addition, segmentation and tagmosis

2.30-3.00pm: Dieter Waloszek (University of Ulm) - Evolutionary History of Crustacean Segmentation and Tagmosis: A Fossil-Based Perspective


Saturday 8th January 2005

9.00-9.30am: David Weisblat (UC Berkeley), A.S. Rivera, F.C. Gonsalves, M.H. Song and S.O. Zhang - Segmentation in Helobdella robusta, a glossiphoniid leech

9.30-10.00am: Guillaume Balavoine (CNRS Gif-sur-Yvette) R. De Rosa, B. Prud'Homme, A. Adoutte, - Posterior addition: the annelid way

10.00-10.30am: COFFEE

10.30-11.00am: Vicky Prince (University of Chicago) - Vertebrate axial patterning and the consequences of duplication events

11.00-11.30am: Jason Head (Smithsonian) - Ecological and phylogenetic variation in segmentation in snakes

11.30-12.00pm: David Jacobs (University of California, Los Angeles), Nigel Hughes, (UCR) and Chris Winchell (UCLA) - Terminal Addition and the Evolution of Bilaterian Form


Trilobite (Nigel Hughes)



Snake Vertebrae (Jason Head)



Milliped Embryo (Wim Damen)



Spider Embryo (Wim Damen)