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RAPD和SRAP分子标记在金针菇菌种鉴定中的应用 总被引:1,自引:0,他引:1
试验从分子生物学和形态学角度,利用SRAP和RAPD分子标记技术对7个金针菇菌株进行遗传多样性分析。SRAP共扩增出469条DNA条带。大部分条带分子量在200~3000bp,多态性条带为377条,占总条带数的80.4%,每对引物平均获得41.9条多态性条带。RAPD扩增出476个条带。其中多态性条带为274条,占总条带数的57.6%,每个引物平均获得343条多态性条带。结果证明,RAPD与SRAP分子标记技术在试验中分别在以相似系数0.91和0.72为阈值时,7个供试菌株的分组大致是相同的。金913和金19同源性最大,在2种分子标记技术中相似系数分别达到了0.9903和0.8966,表明金913和金19可能是同物异名,而金405与其他菌株的亲缘关系最远,其远缘优势应在杂交育种中引起重视。 相似文献
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离子注入诱变鸡冠花M1代形态变异的研究 总被引:2,自引:0,他引:2
对经离子注入处理后的3个品种的变异鸡冠花M1代的生长发育和形态变异进行了研究。结果表明:JTM变异的生长发育期比原品种有提早趋势,花冠变紧凑,株高、冠幅、叶形指数和分枝上也有显著变异;YH变异的真叶初始期、出苗期略比原品种早,而抽冠、初花和盛花比原品种晚,花色由鲜红变为深红,株高、冠幅、叶形指数、叶片数、分枝、主花穗长上也有显著变异;ZTH变异的生长发育期与原品种相比略提早,花型变为圆头状,花色有变异为黄色的,株高、分枝和主花穗长上有显著变异;变异均结种子,且有很高的观赏价值。 相似文献
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为了解三倍体无子西瓜品种SRAP(Sequence-Related Amplified Polymorphism)扩增特点及其在三倍体西瓜杂种纯度鉴定中的适应性,利用SRAP引物组合对当前生产上推广的9个三倍体无子西瓜品种进行了指纹分析和杂种纯度鉴定研究。结果表明,1)30对引物组合中筛选出多态性引物组合24对,共产生109条多态性带,平均每对引物组合产生多态性带4.5条,单个组合的多态性比率在12.5%~80%。2)结合多对SRAP引物组合,可以鉴别不同品种。3)在黑蜜5号及其父母本的指纹分析中,发现有1对引物组合(ME4/EM3)在黑蜜5号杂交种上扩增出了特异的条带,可以区分母本和杂交种,试验证明该引物组合能够用于黑蜜5号的杂种纯度鉴定。 相似文献
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灵芝原生质体融合子的SRAP分子标记鉴定 总被引:2,自引:0,他引:2
为验证新型SRAP分子标记技术用于灵芝(Ganoderma lucidum)原生质体融合子鉴定的可行性,通过亲本菌株赤芝05、06对153个SRAP引物组合进行筛选,应用经过初筛和复筛得到的4个清晰稳定、且含有两个亲本各自特异扩增条带的SRAP引物组合,对2个亲本菌株、2个只与亲本05有拮抗的融合子、2个只与亲本06有拮抗的融合子、30个与双亲均有拮抗的融合子进行SRAP扩增.结果表明,2个只与亲本05有拮抗的融合子仅扩增出06的特异条带,2个只与亲本06有拮抗的融合子仅扩增出05的特异条带,30个与双亲均有拮抗的融合子中,有7个融合子同时扩增出05和06的特异条带,证明此7个融合子应是05和06融合产生的菌株,也证明SRAP标记可以用于灵芝原生质体融合子的鉴定. 相似文献
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以安祖花(Anthurium andraeanum)抗逆性较强的品种‘Pink Champion’为母本,主栽品种‘Dakota’为父本,杂交得到F1代,从该杂种F1代中随机选出94个单株为作图群体,利用SRAP分子标记技术并运用JoinMap4.0®软件的CP作图模型构建了遗传连锁图谱。该图谱覆盖基因组长1 689.5 cM,共254个标记,定位于19个连锁群上,标记间平均距离为6.65 cM。各连锁群长度在7.6 ~ 187.2 cM范围内,每个连锁群包含3 ~ 43个标记。 相似文献
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五十八份菊芋种质资源遗传多样性SRAP分析 总被引:1,自引:0,他引:1
以58份菊芋种质资源为试材,利用SRAP分子标记技术对其进行遗传多样性研究,为选育耐盐新品种提供参考依据。结果表明:从110对引物中筛选出16对多态性好的引物,共扩增出123条条带,其中多态性条带90条,多态性比率为72.7%。利用NTSYS软件统计分析出菊芋资源间遗传距离为0.01~0.52。应用UPGMA聚类可将58份菊芋资源划分为三大类群,第一大类群分为4个亚类群。表明利用SRAP技术更能充分揭示菊芋资源间的遗传差异,可作为种质鉴定依据。 相似文献
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YING Zheng-he WU Xiao-ping XIE Bao-gui * CHEN Li-na LU Qi-quan GAO Wei SUN Shu-jing Mycological Research Center Fujian Agriculture Forestry University Fuzhou Fujian China Institute of Plant Protection Fujian Academy of Agriculture Sciences Fuzhou Fujian China 《食用菌学报》2006,(4)
Although China is now the largestproducer and exporter ofLentinula edodes,there is still considerable confusion in theChineseL.edodesindustry with regard to thedesignation of cultivatedstrains.Asingle strainis often named differently in differentcultivation areas,and different strains areoccasionally allotted the same strain desig-nation.However,various molecular markershave been developed in recent years and couldbe used to remove much of this confusion.Todate,the most widely used molecular… 相似文献
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FU Li-zhong WEI Hai-long LI Hai-bo WU Qing-qi WU Da-feng WU Xue-qian * Biotechnology Research Institute Zhejiang Academy of Forestry Science Hangzhou China Lishui Edible Fungi Research Development Center Zhejiang Essence Fungi Development Co. Ltd Lishui Zhejiang China 《食用菌学报》2006,(4)
Lentinula edodesis a large,edible wood-decaying fungus that is attractive to consumersdue to its delicious taste and medicinalproperties.One of the major cultivatedmushrooms,it is ranked second(marginallybehindAgaricus bisporus)in terms of worldproduction.L.edodeswas originally cultivatedinChina,whichis nowthelargest producer of themushroom and rich in germplas m resources.These resources form the basis ofL.edodesbreeding programs and product exploitation.However,research on the genetic rela… 相似文献
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Three types of molecular markers (SRAP, ISSR and RAPD) were used to identify four Tremella fuciformis strains, T6 (white), T7 (white), T8 (yellow) and T9 (light yellow). Twelve SRAP primer pairs, ten ISSR primers and eight RAPD primers were screened, and identification data obtained using the three molecular markers were consistent in that the four T. fuciformis strains were divided into three groups with T7 and T9 clustered together in a single group. Each RAPD primer generated a higher average number of polymorphic bands than either the SRAP or ISSR primers, and the average similarity between the four strains was 81.34%. SRAP markers reflected more genetic information compared with the two other markers, and the average similarity was 68.98%. Genetic information reflected by ISSR markers was intermediate between SRAP and RAPD, and the average similarity was 77.48%. 相似文献
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QU Shaoxuan GAO San HUANG Chenyang 《食用菌学报》2007,14(3):6-9
Three types of molecular markers (SRAP, ISSR and RAPD) were used to identify four Tremella fuciformis strains, T6 (white), T7 (white), T8 (yellow) and T9 (light yellow). Twelve SRAP primer pairs, ten ISSR primers and eight RAPD primers were screened, and identification data obtained using the three molecular markers were consistent in that the four T. fuciformis strains were divided into three groups with T7 and T9 clustered together in a single group. Each RAPD primer generated a higher average number of polymorphic bands than either the SRAP or ISSR primers, and the average similarity between the four strains was 81.34%. SRAP markers reflected more genetic information compared with the two other markers, and the average similarity was 68.98%. Genetic information reflected by ISSR markers was intermediate between SRAP and RAPD, and the average similarity was 77.48%. 相似文献
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以国家蔬菜工程技术研究中心甜瓜单倍体育种组提供的12份薄皮甜瓜,30份厚皮甜瓜,2份野生甜瓜为试材,该研究优化了甜瓜SRAP反应体系,筛选出10对引物组合,分析了甜瓜多态性并对品种进行鉴定.结果表明:10μL反应体系为1×Buffer lμL,引物组合各20 ng,模板DNA 20 ng,dNTPs 2.0 mmol/L,Taq DNA聚合酶0.2U.10对引物组合在2份甜瓜上共扩增出166条带,其中多态性条带104条,每对引物组合平均能扩增出10.4个多态性位点.甜瓜间遗传距离在0.08~0.79(平均为0.357),54份甜瓜被分为二大类:Ⅰ类包括1份印度野生甜瓜和3份哈密瓜;Ⅱ类可再分为2个亚类:Ⅱ-1,是12份薄皮甜瓜;Ⅱ-2,包括1份中国野生甜瓜和37份厚皮甜瓜.引物组合m21e01、m21e10和m21e11区分率分别高达79.6%、81.5%和79.6%,有助于品种的高效鉴定. 相似文献
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部分矮牵牛品种亲缘关系的SRAP分析 总被引:7,自引:0,他引:7
本文首次利用分子标记SRAP(sequence-related amplified polymorphism)对部分矮牵牛品种进行亲缘关系分析。采用88对引物对我国栽培的58个矮牵牛品种进行扩增,从中筛选得到20个多态性较高的引物组合,共产生389条多态性条带,平均每个引物组合产生19.5个多态性条带,每个引物组合分别产生13~40个扩增带,Jaccard's相似系数在0.55~0.87之间。在遗传距离(GD)为0.67处,可将58个矮牵牛品种分为4个类群,第一类群主要为暖色系列的品种,第二类群为黄色花品种,第三、四类群为冷色花品种,白色花品种聚类较散。本研究结果为开展矮牵牛新品种保护、种子纯度检测以及分子育种提供了分子生物学资料。 相似文献