贵州遵义铜锣井大型锰矿床位于鄂渝湘黔前陆褶皱冲断带西部,遵义次级成矿亚带的深溪-八里锰矿矿带。矿区主要出露地层为寒武系第三统-芙蓉统、奥陶系下统娄山关组,奥陶系下统桐梓组、红花园组、中-下统湄潭组,二叠系阳新统梁山组、栖霞...贵州遵义铜锣井大型锰矿床位于鄂渝湘黔前陆褶皱冲断带西部,遵义次级成矿亚带的深溪-八里锰矿矿带。矿区主要出露地层为寒武系第三统-芙蓉统、奥陶系下统娄山关组,奥陶系下统桐梓组、红花园组、中-下统湄潭组,二叠系阳新统梁山组、栖霞组、茅口组,乐平统龙潭组、长兴组地层,三叠系下统夜郎组、中-下统嘉陵江组、中统关岭组地层,第四系。锰矿体产于二叠系阳新统茅口组第三段含锰岩系下部,呈层状、似层状产出,矿石结构主要为内碎屑结构,纹层状、斑杂状、块状构造,矿体厚度与含锰岩系厚度呈正相关,矿体厚度为0.3~3.5 m, Mn品位为12%~31%,平均为19.27%。展开更多
Plant anatomy is patterned early during leaf development which suggests studying the spatial–temporal transcriptomes of primordia will help identify critical regulative and functional genes.We successfully isolated t...Plant anatomy is patterned early during leaf development which suggests studying the spatial–temporal transcriptomes of primordia will help identify critical regulative and functional genes.We successfully isolated the leaf primordia tissues from the C3grass rice and the C4grass foxtail millet by laser capture microdissection(LCM)and studied the gene expression throughout leaf developmental stages.Our data analysis uncovered the conserved expression patterns of certain gene clusters both in rice and foxtail millet during leaf development.We revealed genes and transcription factors involved in vein formation,stomatal development,and suberin accumulation.We identified 79 candidate genes associated with functional regulation of C4anatomy formation.Screening phenotype of the candidate genes revealed that knock-out of a putative polar auxin transport related gene NAL1 resulted significantly reduced veinal space in rice leaf.Our present work provides a foundation for future analyses of genes with novel functions in grasses and their role in leaf development,in particular the role in leaves with a contrasting C3vs.C4biosynthetic pathway.展开更多
文摘贵州遵义铜锣井大型锰矿床位于鄂渝湘黔前陆褶皱冲断带西部,遵义次级成矿亚带的深溪-八里锰矿矿带。矿区主要出露地层为寒武系第三统-芙蓉统、奥陶系下统娄山关组,奥陶系下统桐梓组、红花园组、中-下统湄潭组,二叠系阳新统梁山组、栖霞组、茅口组,乐平统龙潭组、长兴组地层,三叠系下统夜郎组、中-下统嘉陵江组、中统关岭组地层,第四系。锰矿体产于二叠系阳新统茅口组第三段含锰岩系下部,呈层状、似层状产出,矿石结构主要为内碎屑结构,纹层状、斑杂状、块状构造,矿体厚度与含锰岩系厚度呈正相关,矿体厚度为0.3~3.5 m, Mn品位为12%~31%,平均为19.27%。
基金supported by the National Key Research and Development Program of China(NKRDP)(2022YFF1001700)the Agricultural Science and Technology Innovation Program(2020YFE0202300)the National Natural Science Foundation of China(31871313)。
文摘Plant anatomy is patterned early during leaf development which suggests studying the spatial–temporal transcriptomes of primordia will help identify critical regulative and functional genes.We successfully isolated the leaf primordia tissues from the C3grass rice and the C4grass foxtail millet by laser capture microdissection(LCM)and studied the gene expression throughout leaf developmental stages.Our data analysis uncovered the conserved expression patterns of certain gene clusters both in rice and foxtail millet during leaf development.We revealed genes and transcription factors involved in vein formation,stomatal development,and suberin accumulation.We identified 79 candidate genes associated with functional regulation of C4anatomy formation.Screening phenotype of the candidate genes revealed that knock-out of a putative polar auxin transport related gene NAL1 resulted significantly reduced veinal space in rice leaf.Our present work provides a foundation for future analyses of genes with novel functions in grasses and their role in leaf development,in particular the role in leaves with a contrasting C3vs.C4biosynthetic pathway.
基金中国地质调查局项目(编号:121201103000150020)及其二级项目(编号:DD20160346)贵州省遵义锰矿整装勘查找矿预测及与技术运用示范项目(编号:121201004000160901-32)+4 种基金贵州省锰矿资源预测评价科技创新人才团队(黔科合平台人才[2018] 5618)贵州省地质矿产勘查开发局地质科研项目(黔地矿科合[2016] 3)联合资助the program of the China Geological Survey(No.121201103000150020)and its secondary project(No.DD20160346)Prospecting Prognosis and Technology Application Demonstration Projects for Full-scale Exploration of Zunyi Manganese Mine in Guizhou Province(No.121201004000160901-32Science and Technology Innovation Talent Team of Prediction and Evaluation of Manganese Ore Resources in Guizhou(Scientific research contract of platform and talent in Guizhou [2018] 5618)Geological science and technology project of Guizhou Bureau of Geology and Mineral Exploration and Development(Scientific research contract of geology and mining in Guizhou [2016]3)