1 Perspectives on Evolutionary and Developmental Biology Essays for Alessandro Minelli edited by Giuseppe Fusco Table of contents Contributors IX Preface XIII Part I Theoretical investigations The causal structure of development and its evolution 3 Wallace Arthur Towards a developmental biology of holobionts 13 Scott F. Gilbert An evolutionary biology for the 21 st century 23 Armin P. Moczek Evo-devo’s challenges to the Modern Synthesis 29 Gerd B. Mü ller Ever since Darwin: Why plants are important for evo-devo research 41 Rolf Rutishauser Structural and dynamic approaches to the development and evolution of plant form 57 Rolf Sattler Part II Conceptual elaborations Homology and homoplasy of life cycle traits 71 James DiFrisco