所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全...所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全基因组关联分析(Genome-Wide Association Analysis Study, GWAS)作为一种有效的手段已经被用来研究宿主和微生物组之间的关系。本文基于国内外最新研究进展,从以下方面进行综述,包括植物对微生物组的调控,以及如何应用GWAS研究植物与微生物组互作遗传机制,重点阐述了植物与微生物组关联分析中微生物组作为“拓展表型”数据的选择,并且总结了植物宿主影响微生物组的遗传机制,旨在阐明宿主遗传因素对微生物组的调控,增进对植物与微生物组互作的理解。展开更多
Ferroelectricity of group-Ⅳ chalcogenides MX(M = Ge,Sn;X = Se,S) monolayers has been extensively investigated.However,how the ferroelectricity evolves in their one-dimensional nanotubes remains largely unclear.Employ...Ferroelectricity of group-Ⅳ chalcogenides MX(M = Ge,Sn;X = Se,S) monolayers has been extensively investigated.However,how the ferroelectricity evolves in their one-dimensional nanotubes remains largely unclear.Employing an accurate deep-learning interatomic potential of first-principles precision,we uncover a general stepwise mechanism for polarization switching in zigzag and chiral Ge S nanotubes,which has an energy barrier that is substantially lower than the one associated with the conventional one-step switching mechanism.The switching barrier(per atom) gradually decreases with increasing the number of intermediate steps and converges to a value that is almost independent of the tube diameter.In the chiral Ge S nanotubes,the switching path of polarization with chirality coupling is preferred at less intermediate steps.This study unveils novel ferroelectric switching behaviors in one-dimensional nanotubes,which is critical to coupling ferroelectricity and chirality.展开更多
文摘所有栖息在植物宿主上的微生物被称为植物微生物组。随着高通量测序的发展,植物微生物组作为一个复杂的生态系统已经被广泛关注。植物微生物组群落的结构和功能等方面已得到了深入细致的研究,而植物与微生物组的互作机制仍有待探索。全基因组关联分析(Genome-Wide Association Analysis Study, GWAS)作为一种有效的手段已经被用来研究宿主和微生物组之间的关系。本文基于国内外最新研究进展,从以下方面进行综述,包括植物对微生物组的调控,以及如何应用GWAS研究植物与微生物组互作遗传机制,重点阐述了植物与微生物组关联分析中微生物组作为“拓展表型”数据的选择,并且总结了植物宿主影响微生物组的遗传机制,旨在阐明宿主遗传因素对微生物组的调控,增进对植物与微生物组互作的理解。
基金supported by the National Natural Science Foundation of China (Grant Nos.52172136,11991060,12088101,and U2230402)。
文摘Ferroelectricity of group-Ⅳ chalcogenides MX(M = Ge,Sn;X = Se,S) monolayers has been extensively investigated.However,how the ferroelectricity evolves in their one-dimensional nanotubes remains largely unclear.Employing an accurate deep-learning interatomic potential of first-principles precision,we uncover a general stepwise mechanism for polarization switching in zigzag and chiral Ge S nanotubes,which has an energy barrier that is substantially lower than the one associated with the conventional one-step switching mechanism.The switching barrier(per atom) gradually decreases with increasing the number of intermediate steps and converges to a value that is almost independent of the tube diameter.In the chiral Ge S nanotubes,the switching path of polarization with chirality coupling is preferred at less intermediate steps.This study unveils novel ferroelectric switching behaviors in one-dimensional nanotubes,which is critical to coupling ferroelectricity and chirality.
