内容提要：
Teleost fish are amongst the most diverse of vertebrates and have adapted to virtually all aquatic environments. We are interested in fish adaptations, mostly those present in the dermal skeleton such as spines, ctenoid scales or bony plates and how changes in the underlying developmental mechanisms have driven their diversification. This entails the identification of these underlying developmental mechanisms using classical developmental biological approaches followed by subsequent cross-species comparison in lineages with exaggerated or modified traits. Such work for instance shows how a deeply conserved mechanism for fin and limb patterning became exapted for the evolution of fin spines in the acanthomorph fishes. At the same time, genetic pleiotropy can explain why spiny fin rays evolved convergently within the fish radiation, or how the spiny and soft-ray domains are restricted in morphospace.
讲者简介：
Joost Woltering was trained as developmental and evolutionary biologist, starting in Cambridge with John Gurdon followed by work in Leiden with Antony Durston; in Geneva with Denis Duboule; and in Konstanz with Axel Meyer. Since his PhD he has explored questions related to the evo-devo of the axial skeleton and appendages, such as fins, limbs, and scales. This includes molecular-developmental work on embryos from a wide variety of species such as snakes, caecilians, lizards, frogs, mice, cichlids, and Australian lungfish. In recent work he has investigated the fin-to-limb transition using Australian lungfish as a model. In ongoing projects, he wants to understand how developmental mechanisms contribute to the stunning morphological diversity of fishes and at the same time act as constraining factors as well as drivers of convergence. Joost Woltering currently is an Assistant Professor at the University of Konstanz where his lecture series in vertebrate zoology has received numerous awards. In his current research projects, he strives to further develop cichlids and other diverse teleost species as model systems for evolutionary developmental biology.
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