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1、作物學報ACTAAGRONOMICASINICA2014,40(7):1197?1204http://zwxb.chinacrops.org/ISSN0496-3490;CODENTSHPA9E-mail:xbzw@chinajournal.net.cnDOI:10.3724/SP.J.1006.2014.01197花生SSR標記與農(nóng)藝性狀的相關(guān)性**周金超楊鑫雷崔順立侯名語陳煥英穆國俊劉立峰華北作物種質(zhì)資源教育部重點實驗室/河北省作物種質(zhì)資源重點實驗室/河北農(nóng)業(yè)大學,河北保定071001摘要:以農(nóng)家品種四粒紅和冀農(nóng)黑3號構(gòu)建的包
2、含有251個家系的重組自交系(RIL)群體為材料,在河北保定市和邯鄲大名縣兩地進行表型鑒定,利用Pearson’s相關(guān)和逐步多元回歸分析了花生農(nóng)藝性狀之間及其與標記的相關(guān)性。結(jié)果表明,多數(shù)農(nóng)藝性狀間存在顯著或極顯著相關(guān),其中相關(guān)性最高的為單株生產(chǎn)力和單株仁重(r=0.970),其次是主莖高和第一側(cè)枝長(r=0.918);77個SSR標記與18個農(nóng)藝性狀顯著相關(guān),每個性狀相關(guān)標記數(shù)在2~16之間;14個SSR標記與13個農(nóng)藝性狀關(guān)聯(lián),解釋的表型變異為5.2%~11.5%。以上結(jié)果為花生常規(guī)育種和分子標記輔助選擇奠定了基礎(chǔ)。關(guān)鍵詞:花
3、生;重組自交系;農(nóng)藝性狀;SSR;相關(guān)CorrelationbetweenSSRMarkersandAgronomicTraitsinPeanut(ArachishypogaeaL.)*ZHOUJin-Chao,YANGXin-Lei,CUIShun-Li,HOUMing-Yu,CHENHuan-Ying,MUGuo-Jun,andLIU*Li-FengNorthChinaKeyLaboratoryforCropGermplasmResourcesofEducationMinistry/KeyLaboratoryofCropGer
4、mplasmResourcesofHebei/AgriculturalUniversityofHebei,Baoding071001,ChinaAbstract:Arecombinantinbredline(RIL)populationincluding251lines,derivedfromthecrossbetweenSilihongandJinonghei3wasusedtostudythecorrelationsbetweenSSRmarkersandagronomictraits.Thephenotypesewereev
5、aluatedintwolocationsofBaodingandHandan,HebeiProvince.Pearson’scorrelationandstepwisemultiplelinearregressionanalysiswereconductedbasedonSSRandphenotypingdata.Theresultsshowedthatthereweresignificantcorrelationsamong18agronomictraits,withthehighercorrelationsbetweenpo
6、dweightperplantandseedweightperplant(r=0.970),aswellastheheightofmainstemandlengthoffirstbranches(r=0.918).ThereexistedsignificantcorrelationbetweenSSRmarkerandagronomictraitwithaaverageof2–6markerscorrelatedwitheachagronomictrait.FourteenSSRmarkerswereassociatedwith1
7、3agronomictraitswithex-planinedphenotypicvariancesof5.2%–11.5%.Alltheselaidasolidfoundationforpeanutconventionalbreedingandmolecularmarker-assistedbreedingprograms.Keywords:Peanut;Recombinantinbredline;Agronomictraits;SSR;Correlation作物的許多農(nóng)藝性狀如產(chǎn)量、品質(zhì)和抗逆性等selection,MAS)對
8、目標性狀進行改良,可以加快育[2]大多屬于數(shù)量性狀,遺傳基礎(chǔ)復雜,易受環(huán)境影響。種進程,提高育種效率。眾多分子標記技術(shù)中,簡通過表型選擇的傳統(tǒng)育種方法改良農(nóng)藝性狀周期長,單序列重復標記技術(shù)(simplesequencerepeat,SSR)[1]選
