presentation, part 1 - Molecular Evolution

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Ancestral lemur(~62 mya)C3N10N9C7N11N8C8C2N7N5N4N6C1N3DaubentoniaPropithecusLepilemurCheirogaleusMirzaM. ravelobensisM. rufusE. f. collarisE. f. albifronsE. f. rufusE. rubriventerE. mongozE. m. flavifronsE. m. macacoHapalemurLemurV. v. rubraV. v. variegataGalagoLorisCallithrixMacacaPongoGorillaHomoCanisFelis10090 80 70 60 50 40 30 20 10 0Million yearsYoder & Yang (2004)
Bayesian analysis of new data set, using twocalibrations points (human/chimp & loris/galago), gives very similar age estimates toprevious analyses, however, credibilityintervals are still uncomfortably broad (e.g.,20 my for ancestral lemur node). Are weseeing a trade off between density ofcalibrations versus amount of sequence data?Horvath et al. (2008) Genome Research
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How to Study an Island (Madagascar)
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Using Tree Thinking to Reconstructt
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Rush hour traffic in Madagascar
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Imbalance & Endemism in !Madagascar
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Dr. Chris Scotese (Arizona State)Th
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Vicariance?(“paleo-endemics”)Di
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(i.e., the end of the“age of dino
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Montane rainforest!(Annual rainfall
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Has central plateau served as a bar
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1! 2! 3!10 mya (+1.8)1! 2! 3!9.2 my
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Human Impact:- Humans arrived in Ma
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So what are we going to doabout it?
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Rodents
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LEMURS!!LEMURS!!
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Photo by David Haring
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Photo by Franz Lanting
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Photo by me
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Photo by David Haring
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Ascending Pharyngeal Artery!
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Genetic Consensus of Strepsirrhine
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Archaeoindris!Mouse lemur!
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Office!Main lab!Thermocycler!Gel el
Page 51 and 52: Megaladapis cytochrome b sequences
Page 53: Extinct &Extant lemursform a cladeA
Page 57 and 58: Single dispersal:lemurs (Yoder et a
Page 59 and 60: “Hard” polytomy versus “Soft
Page 61 and 62: Lineage SortingComplete Lineage Sor
Page 63 and 64: Developing New Lemur-Specific Loci
Page 65 and 66: 22 out of 25 nodeshave bootstrapsup
Page 67 and 68: “Ignoring temporal information ob
Page 69 and 70: What is the Molecular Clock Hypothe
Page 71 and 72: Raw Genetic Differences"Species 1:
Page 73 and 74: The Molecular ClockThe Present0.10s
Page 75 and 76: The Molecular ClockThe Present0.022
Page 77 and 78: T3C2C1T2T1Rate and Time are confoun
Page 79 and 80: General Time Reversible (6-paramete
Page 81 and 82: Monkey! Human!Whale! Hippo!TimeUsin
Page 83 and 84: We need a method that …!• allow
Page 85 and 86: Major Innovation …• Both method
Page 87 and 88: Parameter Estimates by Data Partiti
Page 90 and 91: Figure 1 Middle Eocene lorisiforms
Page 93 and 94: N8N9N10C3N1N3N4N5N6N7N11C2N2C8C1C7C
Page 95 and 96: Excellent data quality; very good t
Page 97 and 98: Poor data quality; good taxon sampl
Page 99 and 100: Table 4 Posterior means and 95% cre
Page 101: Lessons learned (a few):• Multipl
Page 105 and 106: At precisely 65 mya, an asteroid ne
Page 107 and 108: David A. Kring and Daniel D. Durda,
Page 113 and 114: Hypothetical IslandChain between Af
Page 115 and 116: Malagasy!lemuriforms!AMalagasy!carn
Page 117 and 118: The Davie Ridge: Possible Sub-aeria
Page 119 and 120: Cenozoic!Crown-basedSouthern RouteS
Page 121 and 122: SWEEPSTAKES!
Page 123 and 124: Reconstructed Indian Ocean currents
Page 125 and 126: Current Data (presence/absence;mole
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presentation, part 1 - Molecular Evolution

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