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Lab 5: Quantifying Cold Tolerance of Various Species of Drosophila, and its Evolutionary Relationshi

38 35 12593 29 74143 42 30487 27 129937 4 76623 0

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Unformatted text preview: ofeachtubewereimmediatelyplacedona tableontheirbacks,andacontinuouslyrunningtimerloggedallthewake ­uptimes.This processwasrepeatedforallthespeciestubes.  Oncethedatawascollected,themeanwake ­uptimeforeveryspecieswascalculated, andthetimesweregraphedagainsttheirrespectivemidpointlatitudes;afterwards,theraw datawasanalyzedvialinearregression,andanR2valuewasgenerated.Asecondregression linewasthengeneratedundertheassumptionthatthe datageneratedwasdueto phylogeneticinheritance,ratherthanindependentadaptation,andasecondR 2valuewas generated.A95%confidenceintervalwasusedtojudgethevalidityoftheresults. Results  Drosophila Species deflecta falleni hydei innubila mauritiana melanogaster mojavensis nebulosa neotestacea palustris recens sechellia simulans subquinaria testacea willistoni     MeanWake ­ Midpoint upTime Latitude 128.38 35 125.93 29 741.43 42 304.87 27 1299.37 4 766.23 0 370.09 33 989.47 28 200.29 42 205.02 43 1401.40 45 1544.92 4 988.13 17 67.65 43 340.17 50...
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  • Spring '12
  • ProfessorHyatt
  • Biology, Evolution, adaptations0200to0200deal0200with0200the0200differences0200in0200climates0200in0200their0200respective0200regions.0200Of0200p articular0200, interest0200in0200this0200experiment0200is0200the0200cold0200tolerance0200of0200various0200species0200of0200 Drosophila0200from0200different0200, line0200was0200then0200generated0200under0200the0200assumption0200that0200the0200 data0200generated0200was0200due0200to0200, The0200mean0200wake0200up0200times0200and0200midpoint0200latitude0200of0200the0200species0200tested0200can0200be0200 seen0200in0200, which0200hypothesis0200 0200the0200phylogenetic0200or0200, )0200had0200

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