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1、BiochemicalSystematicsandEcology44(2012)149–156ContentslistsavailableatSciVerseScienceDirectBiochemicalSystematicsandEcologyjournalhomepage:www.elsevier.com/locate/biochemsysecoGeneticdiversityanddifferentiationinChimonanthuspraecoxandCh.salicifolius(Calycant
2、haceae)asrevealedbyinter-simplesequencerepeat(ISSR)markersa,b,ca,ba,b,da,ba,bPan-FengDai,JiaYang,Tian-HuaZhou,Zhao-HuiHuang,LiFeng,a,ba,ba,b,*Hai-LunSu,Zhan-LinLiu,Gui-FangZhaoaKeyLaboratoryofResourceBiologyandBiotechnologyinWesternChina(MinistryofEducation),
3、NorthwestUniversity,Xi’an710069,ChinabCollegeofLifeSciences,NorthwestUniversity,229NorthernTaibaiRoad,Xi’an710069,ShaanxiProvince,ChinacCollegeofAgriculture,HenanUniversityofScienceandTechnology,Luoyang471003,ChinadCollegeofLifeSciencesandEngineering,ShaanxiU
4、niversityofTechnology,Hanzhong723001,ChinaarticleinfoabstractArticlehistory:ChimonanthuspraecoxandChimonanthussalicifoliusaretwonativeplantsinChina.InthisReceived21February2012study,thegeneticdiversityanddifferentiationwithinandamong17naturalpopulationsofAcce
5、pted24April2012thesetwospecieswereevaluatedusinginter-simplesequencerepeat(ISSR)markers.Availableonline6June2012Pronouncedgeneticdifferentiationoccurredbetweenthesetwospecies(FST¼0.3364).Forbothspecies,thegeneticdiversitywaslowatthepopulationlevel(Ch.praecox:
6、Keywords:PPL¼32.49%,h¼0.0968,I¼0.1488;Ch.salicifolius:PPL¼34.25%,h¼0.1192,I¼0.1777),Chimonanthusbutrelativelyhigheratthespecieslevel(Ch.praecox:PPL¼86.03%,h¼0.1552,I¼0.2635;ConservationstrategiesCh.salicifolius:PPL¼81.25%,h¼0.2401,I¼0.3684).ThehierarchicalAMO
7、VArevealedGeneflowGeneticstructurehighlevelsofamong-populationgeneticdifferentiationinbothspecies,in-linewiththeInterspecificrelationshipgenedifferentiationcoefficientandthelimitedamong-populationgeneflow(Ch.praecox:FST¼0.4650,GST¼0.3784,Nm¼0.8213;Ch.salicifolius
8、:FST¼0.5912,GST¼0.5036,Nm¼0.4929).Asignificantisolation-by-distancepatternwasrevealedinCh.salicifolius(r¼0.703,P¼0.048),butnotinCh.praecox(r¼0.168,P¼0.185).Basedonthesedata,effectiveconser
