Grain size and weight are closely related traits determining yield in rice(Oryza sativa L.).Since indica and japonica rice varieties differ significantly in multiple traits,a high-generation recombinant inbred line(RI...Grain size and weight are closely related traits determining yield in rice(Oryza sativa L.).Since indica and japonica rice varieties differ significantly in multiple traits,a high-generation recombinant inbred line(RIL)population derived from the crossing LH9(indica)and RPY(japonica)was used to map grainrelated traits in six environments.Pyramiding of the quantitative trait loci(QTL)for thousand-grain weight showed that combinations of multiple QTL significantly increased the phenotypic effect.A novel gene named GSW3.1 controlling grain size and weight was discovered using the major QTL for the colocalization of grain width and thousand-grain weight on chromosome 3.Gene editing revealed that GSW3.1(LOC_Os03g16850)was pleiotropic,positively regulating grain size and weight while affecting several other agronomic traits.Haplotype analysis indicated that some traits,including grain width and weight,were highly correlated with indica-japonica differentiation.展开更多
基于全球地表水数据集(JRC Global Surface Water,GSW),结合目视解译和质量控制,开展了1980s-2019时段形成和发育的亚洲冰湖最大水域范围(≥0.01km^(2))的空间编目;根据冰湖与冰川的关系,将冰湖分为冰川补给湖(包括:冰上湖、冰川接触湖...基于全球地表水数据集(JRC Global Surface Water,GSW),结合目视解译和质量控制,开展了1980s-2019时段形成和发育的亚洲冰湖最大水域范围(≥0.01km^(2))的空间编目;根据冰湖与冰川的关系,将冰湖分为冰川补给湖(包括:冰上湖、冰川接触湖和冰川不接触湖3个亚类)和非冰川补给湖2类,同时分析了不同类型冰湖的空间分布特征,最终得到亚洲冰川湖泊分类与最大分布数据集(1980s-2019)。研究表明,冰湖总绝对面积误差为98.91km^(2),平均相对误差为19.1%。该数据集包括:(1)空间数据,即1980s-2019年亚洲冰湖最大分布范围与类型数据;(2)表格数据,包括:1980s-2019年亚洲不同大小、类型、高程尺度下冰湖的数量与面积统计。数据集存储为.shp和.xlsx格式,由9个数据文件组成,数据量为21.8MB(压缩为1个文件,4.92 MB)。展开更多
基金supported by the National Key Research and Development Program of China(2016YFD0100400)the National Special Key Project for Transgenic Breeding(2016ZX08001001)。
文摘Grain size and weight are closely related traits determining yield in rice(Oryza sativa L.).Since indica and japonica rice varieties differ significantly in multiple traits,a high-generation recombinant inbred line(RIL)population derived from the crossing LH9(indica)and RPY(japonica)was used to map grainrelated traits in six environments.Pyramiding of the quantitative trait loci(QTL)for thousand-grain weight showed that combinations of multiple QTL significantly increased the phenotypic effect.A novel gene named GSW3.1 controlling grain size and weight was discovered using the major QTL for the colocalization of grain width and thousand-grain weight on chromosome 3.Gene editing revealed that GSW3.1(LOC_Os03g16850)was pleiotropic,positively regulating grain size and weight while affecting several other agronomic traits.Haplotype analysis indicated that some traits,including grain width and weight,were highly correlated with indica-japonica differentiation.
文摘基于全球地表水数据集(JRC Global Surface Water,GSW),结合目视解译和质量控制,开展了1980s-2019时段形成和发育的亚洲冰湖最大水域范围(≥0.01km^(2))的空间编目;根据冰湖与冰川的关系,将冰湖分为冰川补给湖(包括:冰上湖、冰川接触湖和冰川不接触湖3个亚类)和非冰川补给湖2类,同时分析了不同类型冰湖的空间分布特征,最终得到亚洲冰川湖泊分类与最大分布数据集(1980s-2019)。研究表明,冰湖总绝对面积误差为98.91km^(2),平均相对误差为19.1%。该数据集包括:(1)空间数据,即1980s-2019年亚洲冰湖最大分布范围与类型数据;(2)表格数据,包括:1980s-2019年亚洲不同大小、类型、高程尺度下冰湖的数量与面积统计。数据集存储为.shp和.xlsx格式,由9个数据文件组成,数据量为21.8MB(压缩为1个文件,4.92 MB)。
