Climate Change Data Portal
| Conducting assisted evolution in a threatened coral species for promoting more resilient reef ecosystems in the face of climate change | |
| 项目编号 | http://gepris.dfg.de/gepris/projekt/394448490 |
| Dr. HannaKoch, Ph.D. | |
| 项目主持机构 | The Elizabeth Moore International Center for Coral Reef Research & Restoration |
| 开始日期 | 2017 |
| 英文摘要 | Coralreefsserveasreservoirsofbiodiversityandareessentialforthemaintenanceofhealthyecosystems.However,asaresultofcontinueddetrimentalanthropogeniceffectsandnaturaleventslinkedtoclimatechange,itisfearedthattheintensityandcomplexityofenvironmentalchangesareoverwhelmingtheintrinsicabilityofcoralstoadaptandsurvive.Asapossiblesolutionforincreasingcoralresiliencyandforpromotingthelong-termsurvivalofreefecosystems,Iamproposingastudyforusinghuman-assistedevolutionandselectivebreedingtoacceleratenaturally-occurringevolutionaryprocessesinordertoenhancekeytolerancetraits.Performingintraspecificcrossesusingresilientgenotypesisonemethodforrapidlygeneratingevenmorerobustgenotypesbecausesexualreproductioncancombinemultiplebeneficialallelesintoasinglegenomeandthereforegeneratefittergenotypesfaster.Moreover,utilizingsexually-reproducingcoralsoffersaccesstomillionsofpropagules,therebyincreasingthepotentialforexperimentaltesting,forestimatingtheheritabilityoftraitscrucialforadaptationtoclimatechange,andforproducinglargenumbersofindividualsthatcanberearedforrestorationefforts.Specifically,Iamproposingtoperformthefirstexperimentalinvestigationofselectivebreedinginathreatenedandecologically-importantcoralspecies,Acroporacervicornis,inordertotestthehypothesisthatcrossingtemperatureanddiseaseresilientgenotypescangenerateoffspringthataremorerobustintermsofthermotoleranceanddiseaseresistanceundercurrentand/orprojectedenvironmentalconditions.Iwillmeasure,overtime,asuiteofphysiologicalresponsesasproxiesforfitnessandfromthesedatadeterminetheheritabilityofthermotoleranceanddiseaseresilience,whichiscrucialforevaluatingadaptivepotential.Iwillalsocomparedifferentialgeneexpressionduringambientandstressfulconditionsovertimeinordertoidentifythemolecularpathwayscontributingtocoralresilience.ThenIwillconductfitnessassaystotestfortrade-offstopHtolerance,asselectionontrait(s)canleadtonegativefitnessconsequencesforothertraits.WithincreasingoceanacidificationresultinginlowerseawaterpHvalues,pHtoleranceisalsoanimportanttraittoconsider.Finally,Iwillselectarangeofrobustgenotypesforconductingfieldtrialsandplacetheminthesameoffshorenurserywheretheparentalgenotypesarehousedtomonitor,in-situ,theirgrowthandsurvivalovertime.Theresultsofthisstudywillhavefar-reachingimplicationsasthedatafromtheheritabilityandgeneexpressionanalyseswillbeusefulforbasicsciencesresearchsincetraitheritabilitiesarelargelyunknownformostcoralspecies.Additionally,ifselectivebreedingprovessuccessful,thismethodmaybeadaptedtootherspeciesandregionsandultimatelyhelptoadvancecoralrestorationstrategiesworldwide. |
| 学科分类 | 0603 - 生态学;06 - 生物科学 |
| 资助机构 | DE-DFG |
| 项目类型 | Research Fellowships |
| URL | http://gepris.dfg.de/gepris/projekt/394448490?language=en |
| 国家 | DE |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/69560 |
| 推荐引用方式 GB/T 7714 | Dr. HannaKoch, Ph.D..Conducting assisted evolution in a threatened coral species for promoting more resilient reef ecosystems in the face of climate change.2017. |
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