The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta...The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta sites of Maadi,Minshat Abu Omar,and elsewhere have proved contacts with Palestine inProtodynastic(Nagada Ⅱ-Ⅲ)times.The Egyptian Protodynastic Period andDynasty 1 were contemporary with the Palestinian EB Ⅰ and EB Ⅲ,and展开更多
Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to t...Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to the north or the展开更多
The Bayan Obo in the northern North China Craton is the world’s largest light rare earth element(LREE)deposit and the largest niobium(Nb)and thorium(Th)deposit in China(e.g.,Wu,2008;Kynicky et al.,2012;Ling et al.,
很多未知功能结构域DUF(domain of unknown function)在植物生长发育中扮演着重要的角色,本研究以含有DUF1005结构域的基因为研究对象,通过CRISPR/Cas系统对拟南芥中AT1G10020进行基因编辑,在AT1G10020的第二外显子上设计sg RNA靶点序列...很多未知功能结构域DUF(domain of unknown function)在植物生长发育中扮演着重要的角色,本研究以含有DUF1005结构域的基因为研究对象,通过CRISPR/Cas系统对拟南芥中AT1G10020进行基因编辑,在AT1G10020的第二外显子上设计sg RNA靶点序列,构建重组质粒,获得CRISPR/Cas9-AT1G10020重组质粒,并采用农杆菌介导的花序浸染法转化至野生型拟南芥。结果分析发现,经抗性筛选和测序鉴定,共筛选获得6种不同的编辑类型,包括插入、缺失等;且拟南芥幼苗时期的根长发育表型观察显示,基因编辑株系与野生型比较,具有更短的初生根和更少的侧根。本研究获得了AT1G10020编辑纯合突变体,并为DUF1005的生物学功能的研究提供基础,也有助于对未知功能DUF新基因的挖掘和阐释。展开更多
文摘The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta sites of Maadi,Minshat Abu Omar,and elsewhere have proved contacts with Palestine inProtodynastic(Nagada Ⅱ-Ⅲ)times.The Egyptian Protodynastic Period andDynasty 1 were contemporary with the Palestinian EB Ⅰ and EB Ⅲ,and
基金financially supported by the National Natural Science Foundation (grants No. 41102065 and 41872110)the Sichuan Science and Technology Program (grant No. 2018JY0465)
文摘Objective The Shiquanhe ophiolite is an important tectonic belt in western Tibet. It has been debated whether the Shiquanhe ophiolite represents an allochthonous nappe derived from the Bangong-Nujiang suture zone to the north or the
基金financially supported by the National Basic Research Program of China (2012CB416604)the National Natural Science Foundation of China (41372230, 41572204)the China Geological Survey (1212011121070)
文摘The Bayan Obo in the northern North China Craton is the world’s largest light rare earth element(LREE)deposit and the largest niobium(Nb)and thorium(Th)deposit in China(e.g.,Wu,2008;Kynicky et al.,2012;Ling et al.,
文摘很多未知功能结构域DUF(domain of unknown function)在植物生长发育中扮演着重要的角色,本研究以含有DUF1005结构域的基因为研究对象,通过CRISPR/Cas系统对拟南芥中AT1G10020进行基因编辑,在AT1G10020的第二外显子上设计sg RNA靶点序列,构建重组质粒,获得CRISPR/Cas9-AT1G10020重组质粒,并采用农杆菌介导的花序浸染法转化至野生型拟南芥。结果分析发现,经抗性筛选和测序鉴定,共筛选获得6种不同的编辑类型,包括插入、缺失等;且拟南芥幼苗时期的根长发育表型观察显示,基因编辑株系与野生型比较,具有更短的初生根和更少的侧根。本研究获得了AT1G10020编辑纯合突变体,并为DUF1005的生物学功能的研究提供基础,也有助于对未知功能DUF新基因的挖掘和阐释。
