History of Genetics in Evolution
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1 History of Genetics in Evolution Joe Felsenstein GENOME 453, Autumn 2013 History of Genetics in Evolution p.1/43
2 The Great Chain of Being GoingbackasfarastheAncientGreeks,alinearhierarchyoflifeforms was assumed, with inanimate objects at the bottom and deities at the top: Deity Angels Man Mammals Birds Reptiles Amphibians Fish Insects Worms Protists Rocks Issues: placement of birds, insects not obvious. A scale of complexity? Or what? History of Genetics in Evolution p.2/43
3 Carl Linnæus (Carl von Linné) ( ) History of Genetics in Evolution p.3/43
4 Monophyly Monophyletic: having a common ancestor which is not the ancestor of any of the other species being discussed. (This definition works for cases where there are fossil forms being included,andthosewheretheyarenot,andworkswhetherweare discussingonlyafixedsetofspeciesorallspeciesdescendedfromsome ancestor.) History of Genetics in Evolution p.4/43
5 Linnæus s classification of vertebrates In the 10th edition of Systema Naturae: Class Mammalia(mammals) Class Aves(birds) Class Amphibia(amphibians and reptiles) Order Reptiles Genus Testudo(turtles) Genus Draco(gliding lizards) Genus Lacerta(lizards, salamanders, crocodiles) Genus Rana(frogs and toads) Order Serpentes(snakes, slowworms, caecilians) Class Pisces(most fishes) Order Nantes(lampreys, rays, sharks, anglerfishes, sturgeons) Not exactly our current scheme! History of Genetics in Evolution p.5/43
6 Mammals Birds Crocodilians Snakes, Lizards Turtles Frogs Salamanders Lungfish Coelacanth Most fishes Sharks, Rays Lamprey Hagfish Amphioxus Example: A phylogeny of the living Craniata History of Genetics in Evolution p.6/43
7 Mammals Birds Crocodilians Snakes, Lizards Turtles Frogs Salamanders Lungfish Coelacanth Most fishes Sharks, Rays Lamprey Hagfish Amphioxus Vertebrates are a monophyletic group The vertebrates History of Genetics in Evolution p.7/43
8 Mammals Birds Crocodilians Snakes, Lizards Turtles Frogs Salamanders Lungfish Coelacanth Most fishes Sharks, Rays Lamprey Hagfish Amphioxus Reptiles and fishes are paraphyletic groups Reptiles Osteichtyes History of Genetics in Evolution p.8/43
9 An American in Paris (2005) WanderingeastofthePanthéonontheLeftBankofParis,youbeginto notice unusual street names: A street named for Linnaeus? This only hints at a little-known story. History of Genetics in Evolution p.9/43
10 Buffon George-Louis Leclerc, Comte de Buffon( ) History of Genetics in Evolution p.10/43
11 Statue of Buffon at the Jardin des Plantes History of Genetics in Evolution p.11/43
12 Buffon, honored RueBuffon,nexttotheJardindesPlantes (with plastic mastodon, Golden Arches, traffic ticket) History of Genetics in Evolution p.12/43
13 Lamarck Jean Baptiste Pierre Antoine de Monet, Chevalier de Lamarck( ) History of Genetics in Evolution p.13/43
14 Lamarck s tree As published in Philosophie Zoologique, 1809 Can you identify some of the groups? M. means mammals History of Genetics in Evolution p.14/43
15 Lamarck s mechanism for evolution In Philosophie Zoologique, Organisms characters are altered by the effects of use and disuse. These changes are passed on to descendants by inheritance of acquired characters. Note that Lamarck did not originate Lamarckian inheritance": it was something everyone believed in at that time. History of Genetics in Evolution p.15/43
16 Old displays in the Museum of Natural History, Paris History of Genetics in Evolution p.16/43
17 Statue of Lamarck in the Jardin des Plantes, Paris History of Genetics in Evolution p.17/43
18 Lamarck s works listed History of Genetics in Evolution p.18/43
19 My father, you will be vindicated History of Genetics in Evolution p.19/43
20 Buffon s (and Lamarck s) house next to the Museum History of Genetics in Evolution p.20/43
21 Plaque on house commemorating Buffon George Louis Leclerc, Count of Buffon, born in Montbard, 7 September 1707, directoroftheroyalbotanicalgardenfrom1739on,diedinthishouse,16 April 1788 History of Genetics in Evolution p.21/43
22 Plaque on house commemorating Lamarck Jean Baptiste Lamarck, born in Bazentin Le Petit, 1 August 1744, Professor atthemuseum,authorofthefirsttheoryofevolution,livedinthishousefrom 1795on,diedonthe18thofDecember1829 History of Genetics in Evolution p.22/43
23 Geoffroy versus Cuvier Etienne Geoffroy St. Hilaire ( ) Georges Lèopole Chrètien Frèdèric Dagobert, Baron Cuvier ( ) History of Genetics in Evolution p.23/43
24 Memorials in Paris Fountain on corner of Rue Cuvier, Rue Linné and Rue Cuvier along side of fountain ( Á GEORGES CUVIER ) and side of Jardin des Plantes History of Genetics in Evolution p.24/43
25 Allee Cuvier, within the Jardin History of Genetics in Evolution p.25/43
26 Rue Geoffroy St. Hilaire History of Genetics in Evolution p.26/43
27 Paris: Rue Lamarck and Rue Darwin History of Genetics in Evolution p.27/43
28 Johann Wolfgang von Goethe ( ) History of Genetics in Evolution p.28/43
29 Goethe (1790) on the origin of parts of flowers History of Genetics in Evolution p.29/43
30 The Naturphilosophen The Naturphilosophen and Evolutionary views Ape Monkey Mouse Reptile Amphibian Fish Ape Monkey Mouse Reptile Amphibian Fish common developmental pathway evolutionary tree Note The picture here is very much a Great Chain of Being History of Genetics in Evolution p.30/43
31 Fossil forms becoming known in 1700s, 1800s Charles Willson Peale Mary Anning s Plesiosaur, 1821 The Exhumation of the Mastodon (in 1801, painted 1808) History of Genetics in Evolution p.31/43
32 Robert Chambers discusses evolution in 1844 History of Genetics in Evolution p.32/43
33 Charles Darwin ( ) History of Genetics in Evolution p.33/43
34 Wallace Alfred Russel Wallace( ) in 1869 History of Genetics in Evolution p.34/43
35 Lamarck s theory versus Darwin s Lamarck Darwin/Wallace Genetic variation important? No Yes Differential survival or reproduction? No Yes Mutations are in what direction? adaptive random Phenotypic changes inherited? Yes maybe History of Genetics in Evolution p.35/43
36 Fleeming Jenkin Fleeming Jenkin( ) Fleeming Jenkin Building University of Edinburgh History of Genetics in Evolution p.36/43
37 Blending inheritance and selection Value of character History of Genetics in Evolution p.37/43
38 The Biometricians Francis Galton( ) Karl Pearson( ) History of Genetics in Evolution p.38/43
39 Gregor Mendel ( ) History of Genetics in Evolution p.39/43
40 Mendel in his school The faculty of Mendel s monastery school (Mendel is top center-right with flower) History of Genetics in Evolution p.40/43
41 Rediscoverers of Mendel Carl Correns Erich von Tschermak-Seysenegg Hugo De Vries History of Genetics in Evolution p.41/43
42 Founders of theoretical population genetics R. A. Fisher J. B. S. Haldane Sewall Wright History of Genetics in Evolution p.42/43
43 Developers and popularizers of the Neodarwinian Synthes Ernst Mayr George Gaylord Simpson Sir Julian Huxley G. Ledyard Stebbins Theodosius Dobzhansky History of Genetics in Evolution p.43/43
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