四份野生瓜种质资源-研究

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1、东北农业大学农学硕士学位论文’I’heanalysisofthechromosomenumberandka∥otypefortourmatenalsotwlldcucurbltweredyedwithDAPItomaketheplateforobserVation．TheresultindicatedthatthechromosomenumberSoftheNo．9，No．10，No．11andNo．12wildcucurbitwere2n=24，2n=24，2n=22，2n=22，respectiVely．Theka∥otypefor

2、mulaofNo．9waS2n22x=24=24m，andthekaD，o哆pemultiplewaS“lA”type．Theka叮otypefonnulaofNo．10waS2n=2x224=18m+4sm+2sm(SAT)，the10mchromosomehadsatellites，andtheka叫otypemultiplewas“2A”type．Thekaryo哆peformulaofNo．11was2n22x=22=18m+4sm，andtheka叮otypemultiplewaS“2A”t)，pe．Theka叮otypefo

3、mulaofNo．12waS2n22x222222m，andtheka叫otypemultiplewas‘‘1A’’type．Thisstudywasthefirstreponforka叫otypeanalysisofsnakegourd，whichhadproVidedc”ologybaSisforthestudyonsnakegourdgenerapl锄ts．ThegeneticrelacionshipswereanalyzedbySSRmarkerSforfourmaterialsofwildcucurbit．Theresulti

4、ndicatedthat15pairsofSSRprimerselected仔om130pairsofprimergeneratedtotalof27lbards，124(45．8％)ofwhichwerepolymorphicthroughtheanalysisoftheinVestigatedaccessions．Thegeneticsimilar耐coe街cient锄ongfourmaterialsofwildcucurbitandfourkindsofcultivatedcucurbitaccessionsincludingme

5、lOn，cucumber，watemelOnandpumpkinranged矗om0．62toO．99．TheWinboOtsoRwareshowedthattheNo．9，No．10，No．11andNO．12wildcucurbithadnaJlrOwgeneticrelatiOnshipwithcucumber，melOn，pumpkinandwatemelon，respectively．KeywOrds：wildcucurbit；morphologicalcharacteristics；biolOgycharacteristic

6、s；diseaSeresistallce；c

7、lromosome；ka拶。够pe；SSRmarker；geneticrelationshipVCandidate：zhallgNanSpeciaIi够：olericutureSuperVbOr：Prof．LuanFeishi东北农业大学农学硕士学位论文CONTENTSAbstractinChinese⋯⋯⋯⋯．⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．IAbstractinEnglish⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯III1Introduction⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯．11．1OutIineofcucurbitgemlplaSmresources⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1．1CucurbitgemlplasmresourcesandtheirclaSsification⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1．2Thevalue0fcucurbitgemplaSmresOurces⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11

9、．1．3Cucurbitge眦plaSmresourcesintheroIeofinnoVationbreeding⋯⋯⋯⋯⋯⋯⋯⋯．．21．2Theimportantsignificancetominin