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Download Species tree phylogenetics of a clade of Cuban Anoles
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Species tree phylogenetics of a clade of Cuban Anoles Seth Rudman Introduction to Anolis Anolis sagrei, one of Cuba's most common species; Anolis vermiculatus, an aquatic species from western Cuba; Anolis barbatus, a strange Cuban species that feeds on snails; Anolis allisoni, another Cuban species; Anolis bartschi, a spectacular rockdweller that lacks a dewlap; Anolis distichus, from Hispaniola; Anolis aliniger, a montane species from Hispaniola (center). Introduction to Anolis Anolis sagrei, one of Cuba's most common species; Anolis vermiculatus, an aquatic species from western Cuba; Anolis barbatus, a strange Cuban species that feeds on snails; Anolis allisoni, another Cuban species; Anolis bartschi, a spectacular rockdweller that lacks a dewlap; Anolis distichus, from Hispaniola; Anolis aliniger, a montane species from Hispaniola (center). Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Ecomorphs Anolis sagrei Phylogenetics basics: a quick review Making a Gene Tree 1) Collect tissue 2) Extract DNA and Sequence 1 mtDNA marker and 2 common nDNA markers 3) Align sequences and make a tree Difficulties of Phylogenetics Conflicting gene histories Gene A reconstructs this topology Gene B reconstructs this topology Difficulties of Phylogenetics Short distances between nodes Problems encountered by my early trees… Species Trees • Helpful to imagine a gene tree as a tree contained within the true phylogeny. • Think of a species tree as an aggregate of all gene trees. What I’m doing now • Re-sample characters to form smaller datasets and determine the importance of sampling many nuclear loci.
