资源冷杉大院种群遗传结构研究

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1、itstemporalgeneticdifferentiation.Nosignificantdifferenceswerefoundindifferentsizeclasses,thetemporalstructurewasstable,andthegenecantransferingenerations.Thetemporalgeneticstructureinthefourpopulationswererespectivelystudied,theresultalsoshowedthatthedifferenceamongdifferentsiz

2、eclasseswaslow.Thegeneticdiversityindifferentsizeclassesdecreasedfrom5(oldtree),3(middletree),4(adults),2(juveniles)to1(seedlings).5.ThepopulationspatialgeneticstructureinA.ziyuanensisisclear.TherewascleargeneticdifferentiationbetweentheHepingaopopulationandtheotherthreepopulati

3、ons.ThisrelatetolowgeneflowamongpopulationsandthedistributionofA.ziyuanensispopulation.Spatialautocorrelationanalysiswasusedtostudythefine-scalespatialgeneticstructureofthenaturalpopulationsofA.ziyuanensis.Theresultrevealedsignificantspatialstructureofgeneticvariationinsmallersc

4、aleinpopulationofHepingao.WhilethegeneticvariationinpopulationsofXianggupengandJimajiewasfoundtobelackofspatialstructure,whichrandomlydistributed.6.Basedonalltheanalysis,thestrategiestoconserveA.ziyuanensispopulationwerealsodiscussed.Suchaspromotethegeneflowamongthepopulations,f

5、ocalprotectingHepingaopopulationandsoon.Keywords:A.ziyuanensis;Dayuanpopulation;spatialdistributionpattern;temporalgeneticstructure;spatialgeneticstructure;目录摘要Abstract第一章综述..........................................................................................................

6、.........................1 1.1前言...................................................................................................................................1 1.2资源冷杉大院种群的概况...............................................................................................1 1.2

7、.1资源冷杉大院种群的地理分布.............................................................................1 1.2.2资源冷杉大院种群的研究进展.............................................................................1 1.3种群结构研究...............................................................................

8、....................................2 1.4种群遗传结构