检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘华[1] 张新友[1] 韩锁义[1] 严玫[1] 徐静[1] 董文召[1] 孙子淇[1]
机构地区:[1]河南省农业科学院经济作物研究所,国家油料作物改良中心河南花生分中心,河南省油料作物遗传改良重点实验室,农业部黄淮海油料作物重点实验室,河南郑州450002
出 处:《中国油料作物学报》2013年第5期508-514,共7页Chinese Journal of Oil Crop Sciences
基 金:国家重点基础研究发展计划(973计划)(2011CB109304);河南省重大科技专项(111100110200);国家花生产业技术体系(CARS 14);河南省花生产业技术体系
摘 要:主茎高、侧枝长是影响花生株型的主要植物学性状.本研究以重组自交系群体(郑9001×郑8903)为材料,利用在三亚和原阳两个环境下采集的表型数据,采用主基因+多基因混合遗传模型开展花生主茎高和侧枝长的遗传分析,并利用WinQTLcart2.5软件采用复合区间作图法(CIM)进行上述性状的QTL定位分析.结果表明,在海南环境条件下主茎高和侧枝长均符合多基因遗传模型(C-0),其多基因遗传率分别为46.18%和50.14%;在河南原阳环境条件下主茎高符合两对加性上位性主基因+加性上位性多基因遗传模型(E-1-0),主基因多基因遗传率分别为45.49%和21.98%,侧枝长符合多基因遗传模型,其遗传率为88.19%.在三亚、原阳环境条件下检测到的与主茎高相关的QTL分别为4个和6个,对表型变异的贡献率为5.81% ~18.00%;检测到的与侧枝长相关的QTL位点分别为5个和8个,对表型变异的贡献率分别为5.61% ~ 25.12%.主茎高和侧枝长的多基因模型和QTL定位初步揭示出,花生主茎高和侧枝长主要受多基因效应影响,对株型性状的遗传改良具有一定参考价值.Main stem height and lateral branch length of peanut are two important traits controlling plant shape.Recombinant inbred lines (RILs,Zheng9001 × Zheng8903) were planted in Sanya,Hainan Province and Yuanyang,Henan Province.Main stem height and lateral branch length in the two environments were analyzed with mixed major gene and polygene inheritance model.Composite interval mapping (CIM) implemented in WinQTLcart2.5 was used to identify QTL of these two traits.The results indicated that the genetic models of both traits in Hainan were consistent with model C (C-0),the multi-gene genetic model with multiple gene effects and environmental effects,and the polygenic heritability of main stem height and branch length were 46.18% and 50.14%respectively.The genetic model of main stem height in Yuanyang was consistent with model E-1-0,two additive epistatic major genes-additive epistatic polygene model,and the genetic heritability of major genes and polygene were 45.49% and 21.98% respectively.The genetic model of branch length in Yuanyang was the same as that in Sanya,and the genetic heritability was 88.19%.Four and six QTL controlling main stem height were detected based on the phenotypic data collected in Sanya and Yuanyang respectively,and their phenotypic variance was 5.81%to 18.00%.Five and eight QTLs controlling branch length were detected based on data collected in Sanya and Yuanyang respectively,and their phenotype variance was 5.61% to 25.12%.Based on the present study,it could be concluded that main stem height and branch length were controlled by polygene,which should be taken into account in the genetic improvement of plant shape.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117