資源描述：
《玉米葉夾角QTL定位》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、萬方數(shù)據(jù)本實驗總共定位了7個和葉夾角相關(guān)的QTL位點，為近一步研究創(chuàng)造條件。在本研究的基礎(chǔ)上，可以針對QTL所在的染色體區(qū)域，增加分子標(biāo)記，對目標(biāo)QTL進(jìn)行精細(xì)定位。關(guān)鍵詞：玉米；葉夾角；QTL；II萬方數(shù)據(jù)AbstractCornisoneofthemostimportantfoodcrop，theproductionofcornin2013ofourcountryisover215milliontons，ithasbecomeChina'sfirstmajorfoodcrops．Domesticandinternationalexperienceshowsthatimprovethey
2、ieldsofmaizeproductionismainmeasurestopromotethedevelopmentofcorn，whilecornyieldimprovementismainlydependentonthebreedingofnewvarietiesandupdates．Compactplantbreedinghigh—yieldinghybrids，throughrationalcloseplanting，SOthatthecornyieldperunitareainanimportantwaytoimprove．Inrecentyears，withtherapidd
3、evelopmentofmoleculargenetictechniquesquantitycontrolseveralimportanttraitsincornhavebeengenemapping，cloning，whichwillhelpresearchandimprovedvarietiesofmaizegenetics．SSRmarkersusedinthisexperiment，inordertocontrolthemaizeleafangleQTLinitialpositioning。The130SSRmarkershavebeendividedinto10linkagegr
4、oups，covering10chromosomesofmaize，thetotalmaplengthWas1979．7cM，theaveragedistanceof15．23cM．TheNo．1-10Chromosome，謝mthelengthof298．9，215．3cM，180．6cM，252．9cM，216．9cM，215．2cM，170．2cM，173．4cM，147．9cM，108．5cM，have27，13，6，19，18，15，11，11，7，4markers，respectively．Themapisconsistent、)l，immaziegeneticmap，whic
5、hhasbeenpublished．Thisexperiment，dependingontheaveragedataofF2：3familyinmeanleafangletraits，hasbeeninprocessofcorrelationanalysis．Itisclearlythatthreetraitsofmeanleafangletraits，onthelevelof0．01，showdesignificantcorrelation．ThecorelationcoefficiemofHoshitaHakazuholeaves，earlobeandtheinversetwoleaf
6、，errleaveandtheinversetwoleaf,Was0．588，0．396，0．391，respectively,inaddition,thecorrelationcoefficientofHoshitaHakazuholeavesisthehighestinallofthree，thatistosay,higherthanthecorelationcoefficientofearlobeandtheinversetwoleaf,thesameasearleaveandtheinversetwoleafTakingadvantageofcomposffeintervalmap
7、pingmethodtodetectthemicroQTL，controlingleafangle，located7QTLpositioningsrelatedwithleafangle，initialyThreeQTLlocus，controllingspikleleaveangle，locatedinthe1,6III萬方數(shù)據(jù)chromosome；twoQTLlocus，dominatingleafbladeangl
