Faculty of Science, Department of Biology, Institute of Zoology, Applied Zoology Prof. Dr. Klaus Reinhardt E-Mail: [email protected] BScandMScprojectsintheAppliedZoologylab TheAppliedZoologylabisseekingBScorMScstudentswithinterestsinevolutionaryormolecular biologytoconductprojectsrelatingtospermbiology,cellularmetabolism,and/orcuticlebiology. Opportunitiesexistfortraininginadvancedmicroscopy,genefunctionanalysis,proteinanalysis,and experimentalevolution. Minorities,includingmembersoftheLGBTcommunity,areparticularlyencouragedtoapply. Excitingcutting-edgeresearchneedsyourfreshinput-howtoapply Ourwebsite(http://tudaz.net)(news,publicationsandcurrentresearch)provideanimpressionon thetopicsweareworkingon.However,youcandoanyprojectinareasrelatedtoourinterests,as longasyouconvinceustheprojectisinteresting,orrelatedtoProf.Reinhardt'slectures.More specifically,ourinterestsinclude: *Sperm:evolution,ecology,physiologyandmolecularbiology,e.g.geneticmanipulation (RNAi,CRISPRCas9),orsexuallytransmittedmicrobes *Mitochondria:evolution,physiology,mitochondrialdiseases,ageing,ecology,behav.biology *Cuticle:Genetics,proteininteractions,materialscience,incl.geneticmanipulation(RNAi, CRISPRCas9)ofthecuticle *Experimentalevolutionarybiology:incl.epigenetics,reproduction,sexualselection(insects) *Culturalzoology Belowaretwopageswithmorespecificresearchtopics.Pleasecallinifyoulikeoneorseveral. SomeprojectsrequiregoodEnglishskills.Ifyouhaven'tdevelopedaspecificidea,comebyandsee whatwedoorletusknowwhatresearchareayoumightbeinterestedin.Wewilldevelopa researchprojecttogether. Ecologicalandevolutionaryconsequencesofmitochondria-nucleuscrosstalk Mitochondriaandnucleusinteract(crosstalk)toformthephenotype.Ourmitolinesallowusto separatehowmuchthemitochondriaandthenucleuscontributetothephenotype.Manyprojects arepossible,suchasthequestion:domitochondriacontributetobodysize,tospermlength,toegg sizeorwhateveryoumightbeinterestedin.Similarly,mitochondriaalsohavearoleinadaptationto temperatures-findingoutwhatrole,couldbeyourjob.Goodreadtostartwith:Dowling2014 BiochimicaBiophysicaActa1840:1393-1403//Dobleretal.2014.Journalofevol.Biol27:2012-2034 Protaminesinspermfunction Weseektostudythemolecularfunctionoftheabundantspermproteinsprotaminesinthefertility ofthefruitfly.Tocompactthechromatin,protaminesarereplacedbyhistonesinthefinalstagesof spermmaturation.TransgenicfliesexpressingeGFP-taggedprotamineswillbeusedtocharacterise molecularfunctionsduringspermatogenesisusingbiochemicalanalysesandotherapproaches. Physiologyandmolecularbiologyofmitochondria-nucleuscrosstalk Mitochondriaandnucleusinteract(crosstalk)toformthephenotype.Moleculardetailsorthe functionofspecificmitochondrialornucleargenesoftheinteractioncanbeanalysedwithknockdownsorwithourspecialDrosophilamitolines.Goodreadtostartwith:Mitochondrialgenetics Pos t al Ad dress (letters) TU Dresden, 01062 Dresden Pos t al Ad dress (parcels ) TU Dresden, Helmholtzstr 10 01069 Dresden, Germany http://tu-dresden.de Visitors' Address: Secretary Office: Zellescher Weg 20b, Room E01 VAT: (national) 203/149/02549 UmsatzsteuerId-Nr. (international ) DE 188 369 991 Bank Details: Commerzbank AG, Filiale Dresden IBAN DE52 8504 0000 0800 4004 00 BIC COBADEFF850 Member of: lecturebyDrKrause//Picard&Wallace2016.Mitochondrion30:105-116//Gershonietal.2014, GenomeBiologyandEvolution6:2665-2680 Molecularbiology,physiologyandevolutionaryecologyoftheinsectcuticle Theinsectcuticleisanextracellularstructurethathastofulfilmultiplefunctions:protectionagainst pathogens,barrieragainstdehydrationandexoskeleton.Howaretheseaspectsmetatthecellular andmolecularlevel?WeuseDrosophilaasamodelinsecttoaddresstheseissuescombining genetics(includingCrispr/Cas9)withseverallevelsofmicroscopy(light,atomicforce,confocaland electronmicroscopy).Goodreadtostart:cuticlechapterChapmanInsects:StructureandFunction Molecularbiologyofdevelopment Basedonrecentdata,wehypothesisethatInsulinsignallingtriggersdevelopmentalprogressionin bedbugs.Toexplorethis,wewanttomanipulateInsulinsignallingbyRNAinterferenceandby applicationofinhibitorydrugs.Goodreadtostartwith:Gujar&SubbaPalli2016:ScientificReports, 6:26092//Walkiewicz&Stern2009:PLosOne,4:e5072 Evolution,physiologyandmolecularbiologyofspermstorage Insectfemalesstorespermaliveinspecialorgans(spermathecae)formonths!Whyandhowisthat possible?Experimental,microscopy,geneticorcomparativeprojectsarepossible. Introreads:Orr&Brennan2015TrendsinEcologyandEvolution30:261-272,Reinhardt&Ribou 2013,ScientificReports3:2888 Resilinandotherinsectmaterialsusedforsex Duringeverycopulation,malebedbugsuseapenisknifetopenetratethefemale'sskin.Weare interestedtostudythematerialpropertiesofthepenisknifeandofthecorrespondingfemaleskin, includingtheroleofresilin,anelasticproteinoftheexoskeletonofinsectstopreventdamage throughfrequentorfastmovement.Mappingtheexoskeletonofvariousinsectspeciesforresilin willbepossibleusinghistological,genomicorConfocalLaserScanningmicroscopymethods. Goodreadtostartwith:Michelsetal.2015.JournaloftheRoyalSocietyInterface20141107 Bar-Onetal.2014,NatureCommunications5:3894 Sex-biasedexpressionofcuticularenzymes Whywouldmalesandfemaleshavedifferentexpressionofgenesthatareinvolvedincuticle formationandmaintenance?Wedon'tknowbutwehaveideasofhowtofindout. Unexpectedly,wefoundrecentlythatchitin-degradingenzymesmayplayaroleindifferentiation andfunctionofsexualorgansinDrosophila.Tocontinueanddeepenthisresearchfield,weplanto analysethisaspectingenetic(Crispr/cas9)andhistologicalexperiments.Goodreadtostartwith: Peschetal.2016:ScientificReports6:18340//Zhuetal.2008:PNAS105:6650–6655 Canspermevolveinresponsetointeractionswithmicrobes? Spermcellsarecurrentlymainlybelievedtoevolveviasexualselection,aviewthatinits absolutenessischallengedinourlab.Sexuallytransmittedmicrobes,forexample,shouldhavea greatimpactonspermfunctionand,hence,evolverapidly.Experimentalworkwilltesttheeffectof sexuallytransmittedmicrobesininsectsonspermfunction. Goodreads:Lockhartetal.1996.BiologicalReviews71:415-471 Rilligetal.2016.TrendsinEcologyandEvolution30:470-476 Reinhardtetal.2016.AnnualReviewofEcologyEvolutionandSystematics46:435-459 Culturalhistoryofinsects(mainlythebedbug) InvolvesawiderangeofquestionsfromthehistoryofbedbuginDresdenandSaxony(workin archives),torepresentationofbedbugsinfilmsorTVsitcoms. Goodstarttoread:ReinhardtK.2014.LiterarischeWanzen,Neofelis,Berlin. Dicke,M.2004.FromVenicetoFabre:Insectsinwesternart.Proc.Neth.Entomol.Soc15:9-14 2
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