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huelsenbeck11slides - Rhagoletis pomonella Native to North...

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Unformatted text preview: Rhagoletis pomonella Native to North America Males hang around fruit and mate with females Females oviposit eggs on hawthorne fruit Larvae grow up on fruit, spoiling it 1 About 100 years ago, Rhagoletis started to lay eggs on apples, and also on cherries, pears and roses. Now is a major agricultural pest. Assortative mating (hawthorn males mate with hawthorn females; apple males mate with apple females) The two races (apple/hawthorn) are genetically different (from gel electrophoresis) Developmental time is different too (40 vs. 60 days for hawthorn maggots) 2 Metrabdotos (bryozoan) 3 Evolution of the Eocene primate Pelycodus and Notharctus. 4 Evolutionary trends in Lepidolina: The increase in the diameter of the prolocus (initial chamber) of the fusulinid foraminiferan Lepidolina multiseptata. 5 6 Huelsenbeck Lecture 11 Slides page 1 of 8 Rhizosolenia (planktonic diatom) 7 Phenotype Genotype Development 8 Can small, quantitative changes lead to large qualitative changes? 9 Raup (1962) model for shell coiling in gastropods. Real snails occupy one area of the parameter space. Many theoretically possible patterns have not yet evolved. 10 D’Arcy Thompson (1926) coordinate transformation: pufferFsh to sunFsh by positive deformation of the tail region 11 Allometry & Heterochrony • Allometry: differential rates of growth of different body parts....
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huelsenbeck11slides - Rhagoletis pomonella Native to North...

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