【目的】了解苹果属资源遗传多样性,以期为种间亲缘关系分析提供分子水平上的可靠依据。【方法】利用TRAP(Target Region Amplified Polymorphism)分子标记对苹果属30个种和梨属3个种共33份材料进行了遗传多样性分析。【结果】筛选出的1...【目的】了解苹果属资源遗传多样性,以期为种间亲缘关系分析提供分子水平上的可靠依据。【方法】利用TRAP(Target Region Amplified Polymorphism)分子标记对苹果属30个种和梨属3个种共33份材料进行了遗传多样性分析。【结果】筛选出的16对引物组合共扩增出407条有效条带,其中多态性条带404条,多态性百分率达99.26%。UPGMA聚类结果显示,当遗传相似系数GS=0.666时能很好地区分苹果属与梨属材料,当GS=0.680时可将苹果属30个种分为Ⅰ和Ⅱ两个亚类。主坐标分析中材料所属类群同UPGMA聚类结果有较高的符合度,基本与传统系谱一致。但群体结构分析结果同UPGMA聚类和主坐标聚类结果有一定的差异性,其中23份材料的协变量Q值≥0.6,亲缘关系相对单一。【结论】开发出TRAP标记引物组合16对,可有效地区分苹果属种质材料的遗传多样性,为苹果属种间亲缘关系分析提供了新的分子证据。展开更多
As a typical Palaeozoic island arc system, the eastern Tianshan area, Xinjiang, is different from eastern China but similar to the Meso-Cenozoic island arc metallogenic provinces along the coast of the Pacific Ocean i...As a typical Palaeozoic island arc system, the eastern Tianshan area, Xinjiang, is different from eastern China but similar to the Meso-Cenozoic island arc metallogenic provinces along the coast of the Pacific Ocean in metallogenic environment, geology and geochemistry. Three types of gold deposits, ductile shear zone-hosted gold deposits (Kanggur'), magmatic hydrothermal gold deposits (Jinwozi) and volcanic- or subvolcanic-hosted gold deposits (Xitan and Mazhuangshan), have been identified in this area. Regionally, gold deposits are structurally controlled by the Kanggur Tag ductile shear zone, Shaquanzi fault, Hongliuhe fault and Yamansu fault. Generally, gold mineralization occurs in the transition zones from volcanic rocks to sedimentary rocks. The horizon bearing well-developed jasper is an important indicator for gold mineralization. Each of the three types of gold deposits has its distinctive metallogenic background and geological-geochemical characteristics.展开更多
[Objective]The paper was to investigate the occurrence of Lithocolletis ringoniella adults in aged and new apple orchards in Shijiazhuang area.[Method]The growth and decline dynamics of L.ringoniella adults in 3a appl...[Objective]The paper was to investigate the occurrence of Lithocolletis ringoniella adults in aged and new apple orchards in Shijiazhuang area.[Method]The growth and decline dynamics of L.ringoniella adults in 3a apple orchard and 17a apple orchard in Shijiazhuang were monitored by sex attractant trapping method.Meantime,the trapping effects of sex attractant on L.ringoniella were compared with that of sweet-sour liquor.[Result]L.ringoniella occurred five generations annually in Shijiazhuang area.The adults emerged in April,and entered into peak occurrence period during May and June,with overlapping generations.Comparison between sex attractant and sweet-sour liquor tests showed that the trapping effect of sweet-sour liquor received little effect,but was expensive.Therefore,it is not recommended to use sweet-sour liquor for prevention and treatment of L.ringoniella in production.[Conclusion]In the actual production,sex attractant trapping should be combined with appropriate agricultural control measures to control the damage of L.ringoniella.展开更多
文摘【目的】了解苹果属资源遗传多样性,以期为种间亲缘关系分析提供分子水平上的可靠依据。【方法】利用TRAP(Target Region Amplified Polymorphism)分子标记对苹果属30个种和梨属3个种共33份材料进行了遗传多样性分析。【结果】筛选出的16对引物组合共扩增出407条有效条带,其中多态性条带404条,多态性百分率达99.26%。UPGMA聚类结果显示,当遗传相似系数GS=0.666时能很好地区分苹果属与梨属材料,当GS=0.680时可将苹果属30个种分为Ⅰ和Ⅱ两个亚类。主坐标分析中材料所属类群同UPGMA聚类结果有较高的符合度,基本与传统系谱一致。但群体结构分析结果同UPGMA聚类和主坐标聚类结果有一定的差异性,其中23份材料的协变量Q值≥0.6,亲缘关系相对单一。【结论】开发出TRAP标记引物组合16对,可有效地区分苹果属种质材料的遗传多样性,为苹果属种间亲缘关系分析提供了新的分子证据。
文摘As a typical Palaeozoic island arc system, the eastern Tianshan area, Xinjiang, is different from eastern China but similar to the Meso-Cenozoic island arc metallogenic provinces along the coast of the Pacific Ocean in metallogenic environment, geology and geochemistry. Three types of gold deposits, ductile shear zone-hosted gold deposits (Kanggur'), magmatic hydrothermal gold deposits (Jinwozi) and volcanic- or subvolcanic-hosted gold deposits (Xitan and Mazhuangshan), have been identified in this area. Regionally, gold deposits are structurally controlled by the Kanggur Tag ductile shear zone, Shaquanzi fault, Hongliuhe fault and Yamansu fault. Generally, gold mineralization occurs in the transition zones from volcanic rocks to sedimentary rocks. The horizon bearing well-developed jasper is an important indicator for gold mineralization. Each of the three types of gold deposits has its distinctive metallogenic background and geological-geochemical characteristics.
文摘[Objective]The paper was to investigate the occurrence of Lithocolletis ringoniella adults in aged and new apple orchards in Shijiazhuang area.[Method]The growth and decline dynamics of L.ringoniella adults in 3a apple orchard and 17a apple orchard in Shijiazhuang were monitored by sex attractant trapping method.Meantime,the trapping effects of sex attractant on L.ringoniella were compared with that of sweet-sour liquor.[Result]L.ringoniella occurred five generations annually in Shijiazhuang area.The adults emerged in April,and entered into peak occurrence period during May and June,with overlapping generations.Comparison between sex attractant and sweet-sour liquor tests showed that the trapping effect of sweet-sour liquor received little effect,but was expensive.Therefore,it is not recommended to use sweet-sour liquor for prevention and treatment of L.ringoniella in production.[Conclusion]In the actual production,sex attractant trapping should be combined with appropriate agricultural control measures to control the damage of L.ringoniella.
