The "Mendelian Gene" and the "Molecular Gene": Two Relevant Concepts of Genetic Units / V. Orgogozo, A.E. Peluffo, B. Morizot -- The Genetic Basis of Pigmentation Differences Within and Between Drosophila Species / J.H. Massey, P.J. Wittkopp -- To Have and to Hold: Selection for Seed and Fruit Retention During Crop Domestication / L.-F. Li, K.M. Olsen -- The Genetics Underlying Natural Variation in the Biotic Interactions of Arabidopsis thaliana: The Challenges of Linking Evolutionary Genetics and Community Ecology / F. Roux, J. Bergelson -- Behavioral Genetic Toolkits: Toward the Evolutionary Origins of Complex Phenotypes / C.C. Rittschof, G.E. Robinson -- Identifying Coopted Networks and Causative Mutations in the Origin of Novel Complex Traits / A. Monteiro, M.D. Gupta -- Looking Beyond the Genes: The Interplay Between Signaling Pathways and Mechanics in the Shaping and Diversification of Epithelial Tissues / S. Urdy, N. Goudemand, S. Pantalacci -- Phenotypic Evolution With and Beyond Genome Evolution / M.-A. Félix -- Human Phenotypic Diversity: An Evolutionary Perspective / P. Balaresque, T.E. King.