BIOB51H3 Lecture Notes - Lecture 13: Antennapedia, Evolutionary Developmental Biology, Gene Expression
25 Apr 2020
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Lecture 13 from genes to traits: evo-devo. Animals have a hierarchical gene organization controlling the development of animal. Key concepts i: gene expression is influenced by a network of regulatory elements, interactions with. Rna and other gene products: regulatory networks are a hotspot for the evolution of a complex adaptations, novel traits can arise when existing genes are expressed in a new developmental context. One gene evolves new regulation and function. Each gene evolves to specialize in one of the functions of the original gene. Key concepts iii: microbes are ideal for studying complex adaptation evolution, diverse, rapid reproduction, novel traits evolve via, co-option of gene capable of pleiotropic effects, gene duplication, changes in gene regulation. Key concepts iv: evolutionary path of many novel traits, ex: snake venom, is a series of duplication events + co-option of proteins originally involved with other body functions (have now become venomous)
