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Ponente: Kevin P. Johnson Título: The Tree of Lice: The History of Host-Parasite Coevolution Resumen: Parasites are model systems for linking microevolutionary processes with macroevolutionary patterns. Avian feather lice spend their entire lifecycle on the body of their host and are highly host specific. Variation in host specificity across different groups of dove feather lice is related to differences in dispersal ability, which translates into differences in how much the evolutionary tree of lice matches that of their hosts. Across feather lice more broadly, genera differ in how they escape host preening defenses, having repeatedly evolved into head, wing, and body lice, often diverging within a single host group. New phylogenomic techniques using an automated Target Restricted Assembly (aTRAM) method can assemble thousands of genes from genome sequences of lice, which have relatively small genomes. Phylogenies based on these genes are highly supported and provide new insights into the higher level relationships of lice.

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