Genetic analysis showed that cold tolerance at booting stage of near-isogenic lines (NILs) of Kunmingxiaobaigu was controlled by a gene with large phenotypic variance. One hundred and sixty-four simple sequence repe...Genetic analysis showed that cold tolerance at booting stage of near-isogenic lines (NILs) of Kunmingxiaobaigu was controlled by a gene with large phenotypic variance. One hundred and sixty-four simple sequence repeats (SSR) distributed over 12 chromosomes were used to screen polymorphism between Towata (recurrent parent, RP) and near-isogenic line pool (NILP), and two SSR markers at the long arm of chromosome 5 showed polymorphism in comparison with RP genome. Of the two markers, RM31 was found possibly linked with the cold tolerance gene at booting stage through one-way ANOVA. Twelve SSR markers around RM31 were then used to detect polymorphism between RP and NIL, and only RM7452 had polymorphism. The gene of cold tolerance at booting stage was further mapped on chromosome 5 between RM7452 and RM31 with genetic distances of 4.8 cM and 8.0 cM, respectively. This gene explained 10.50% of phenotypic variance and 5.10% of phenotypic variance of fully filled grains, and was tentatively designated as Ctb(t).展开更多
金融的健康发展对实现经济的高质量发展至关重要,数字普惠金融对产业结构优化升级有着十分重要的意义。在对数字普惠金融与产业结构升级理论分析的基础上,基于2011—2018年东北三省36个地级行政区域的面板数据,通过线性回归与门槛回归模...金融的健康发展对实现经济的高质量发展至关重要,数字普惠金融对产业结构优化升级有着十分重要的意义。在对数字普惠金融与产业结构升级理论分析的基础上,基于2011—2018年东北三省36个地级行政区域的面板数据,通过线性回归与门槛回归模型,分析数字普惠金融与产业结构优化升级间的关系。结果表明:数字普惠金融与产业结构优化升级之间存在非线性关系,伴随数字普惠金融发展水平的变化,对产业结构优化升级的影响也在改变。通过中介效应模型与Boot st rap检测法发现消费需求效应在数字普惠金融与产业结构升级间起传导作用,推动消费需求增长可有效促进产业结构优化升级。展开更多
随着科技的进步和人们对于教育的愈发重视,智慧校园已成为教育领域的热门话题。基于此,对基于Vue和Spring Boot的大学智慧校园学习交流与交易网站进行了研究,通过IDEA、Visual Studio Code开发工具实现前后端数据交互。该网站分为学习...随着科技的进步和人们对于教育的愈发重视,智慧校园已成为教育领域的热门话题。基于此,对基于Vue和Spring Boot的大学智慧校园学习交流与交易网站进行了研究,通过IDEA、Visual Studio Code开发工具实现前后端数据交互。该网站分为学习区、跳蚤市场区和生活交流区等多个分区。用户可以在网站上发布帖子,进行交流和交易。该网站为大学生提供一个方便、快捷、安全、可信的校园互动平台。展开更多
基金supportedby China National Natural Science Foundation(30160043,30260060) the Natural ScienceFoundation of Yunnan Province(2004CO010Z).
文摘Genetic analysis showed that cold tolerance at booting stage of near-isogenic lines (NILs) of Kunmingxiaobaigu was controlled by a gene with large phenotypic variance. One hundred and sixty-four simple sequence repeats (SSR) distributed over 12 chromosomes were used to screen polymorphism between Towata (recurrent parent, RP) and near-isogenic line pool (NILP), and two SSR markers at the long arm of chromosome 5 showed polymorphism in comparison with RP genome. Of the two markers, RM31 was found possibly linked with the cold tolerance gene at booting stage through one-way ANOVA. Twelve SSR markers around RM31 were then used to detect polymorphism between RP and NIL, and only RM7452 had polymorphism. The gene of cold tolerance at booting stage was further mapped on chromosome 5 between RM7452 and RM31 with genetic distances of 4.8 cM and 8.0 cM, respectively. This gene explained 10.50% of phenotypic variance and 5.10% of phenotypic variance of fully filled grains, and was tentatively designated as Ctb(t).
文摘金融的健康发展对实现经济的高质量发展至关重要,数字普惠金融对产业结构优化升级有着十分重要的意义。在对数字普惠金融与产业结构升级理论分析的基础上,基于2011—2018年东北三省36个地级行政区域的面板数据,通过线性回归与门槛回归模型,分析数字普惠金融与产业结构优化升级间的关系。结果表明:数字普惠金融与产业结构优化升级之间存在非线性关系,伴随数字普惠金融发展水平的变化,对产业结构优化升级的影响也在改变。通过中介效应模型与Boot st rap检测法发现消费需求效应在数字普惠金融与产业结构升级间起传导作用,推动消费需求增长可有效促进产业结构优化升级。
文摘随着科技的进步和人们对于教育的愈发重视,智慧校园已成为教育领域的热门话题。基于此,对基于Vue和Spring Boot的大学智慧校园学习交流与交易网站进行了研究,通过IDEA、Visual Studio Code开发工具实现前后端数据交互。该网站分为学习区、跳蚤市场区和生活交流区等多个分区。用户可以在网站上发布帖子,进行交流和交易。该网站为大学生提供一个方便、快捷、安全、可信的校园互动平台。