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Substrate regulation leads to differential responses of microbial ammonia-oxidizing communities to ocean warming 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Zheng, Zhen-Zhen;  Zheng, Li-Wei;  Xu, Min Nina;  Tan, Ehui;  Hutchins, David A.;  Deng, Wenchao;  Zhang, Yao;  Shi, Dalin;  Dai, Minhan;  Kao, Shuh-Ji
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/21
Short-lived climate forcers have long-term climate impacts via the carbon-climate feedback 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Fu, Bo;  Gasser, Thomas;  Li, Bengang;  Tao, Shu;  Ciais, Philippe;  Piao, Shilong;  Balkanski, Yves;  Li, Wei;  Yin, Tianya;  Han, Luchao;  Li, Xinyue;  Han, Yunman;  An, Jie;  Peng, Siyuan;  Xu, Jing
收藏  |  浏览/下载:25/0  |  提交时间:2020/07/21
Economics in the Age of COVID-19 期刊论文
NATURE, 2020, 581 (7809) : 375-377
作者:  Yin, Juan;  Li, Yu-Huai;  Liao, Sheng-Kai;  Yang, Meng;  Cao, Yuan;  Zhang, Liang;  Ren, Ji-Gang;  Cai, Wen-Qi;  Liu, Wei-Yue;  Li, Shuang-Lin;  Shu, Rong;  Huang, Yong-Mei;  Deng, Lei;  Li, Li;  Zhang, Qiang;  Liu, Nai-Le
收藏  |  浏览/下载:25/0  |  提交时间:2020/07/03

Breakneck triage nails many diagnoses, but deeper treatment is needed.


Breakneck triage nails many diagnoses, but deeper treatment is needed.


  
Controls on surface water carbonate chemistry along North American ocean margins 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Cai, Wei-Jun;  Xu, Yuan-Yuan;  Feely, Richard A.;  Wanninkhof, Rik;  Jonsson, Bror;  Alin, Simone R.;  Barbero, Leticia;  Cross, Jessica N.;  Azetsu-Scott, Kumiko;  Fassbender, Andrea J.;  Carter, Brendan R.;  Jiang, Li-Qing;  Pepin, Pierre;  Chen, Baoshan;  Hussain, Najid;  Reimer, Janet J.;  Xue, Liang;  Salisbury, Joseph E.;  Martin Hernandez-Ayon, Jose;  Langdon, Chris;  Li, Qian;  Sutton, Adrienne J.;  Chen, Chen-Tung A.;  Gledhill, Dwight K.
收藏  |  浏览/下载:14/0  |  提交时间:2020/06/09
Sustainable production of value-added carbon nanomaterials from biomass pyrolysis 期刊论文
NATURE SUSTAINABILITY, 2020
作者:  Zhang, Shun;  Jiang, Shun-Feng;  Huang, Bao-Cheng;  Shen, Xian-Cheng;  Chen, Wen-Jing;  Zhou, Tian-Pei;  Cheng, Hui-Yuan;  Cheng, Bin-Hai;  Wu, Chang-Zheng;  Li, Wen-Wei;  Jiang, Hong;  Yu, Han-Qing
收藏  |  浏览/下载:20/0  |  提交时间:2020/05/20
Millennial-scale hydroclimate control of tropical soil carbon storage 期刊论文
NATURE, 2020, 581 (7806) : 63-+
作者:  Lam, Tommy Tsan-Yuk;  Jia, Na;  Zhang, Ya-Wei;  Shum, Marcus Ho-Hin;  Jiang, Jia-Fu;  Zhu, Hua-Chen;  Tong, Yi-Gang;  Shi, Yong-Xia;  Ni, Xue-Bing;  Liao, Yun-Shi;  Li, Wen-Juan;  Jiang, Bao-Gui;  Wei, Wei;  Yuan, Ting-Ting;  Zheng, Kui;  Cui, Xiao-Ming;  Li, Jie;  Pei, Guang-Qian
收藏  |  浏览/下载:25/0  |  提交时间:2020/05/13

Over the past 18,000 years, the residence time and amount of soil carbon stored in the Ganges-Brahmaputra basin have been controlled by the intensity of Indian Summer Monsoon rainfall, with greater carbon destabilization during wetter, warmer conditions.


The storage of organic carbon in the terrestrial biosphere directly affects atmospheric concentrations of carbon dioxide over a wide range of timescales. Within the terrestrial biosphere, the magnitude of carbon storage can vary in response to environmental perturbations such as changing temperature or hydroclimate(1), potentially generating feedback on the atmospheric inventory of carbon dioxide. Although temperature controls the storage of soil organic carbon at mid and high latitudes(2,3), hydroclimate may be the dominant driver of soil carbon persistence in the tropics(4,5)  however, the sensitivity of tropical soil carbon turnover to large-scale hydroclimate variability remains poorly understood. Here we show that changes in Indian Summer Monsoon rainfall have controlled the residence time of soil carbon in the Ganges-Brahmaputra basin over the past 18,000 years. Comparison of radiocarbon ages of bulk organic carbon and terrestrial higher-plant biomarkers with co-located palaeohydrological records(6) reveals a negative relationship between monsoon rainfall and soil organic carbon stocks on a millennial timescale. Across the deglaciation period, a depletion of basin-wide soil carbon stocks was triggered by increasing rainfall and associated enhanced soil respiration rates. Our results suggest that future hydroclimate changes in tropical regions are likely to accelerate soil carbon destabilization, further increasing atmospheric carbon dioxide concentrations.


  
Impaired cell fate through gain-of-function mutations in a chromatin reader 期刊论文
NATURE, 2020, 577 (7788) : 121-+
作者:  Wan, Liling;  Chong, Shasha;  Xuan, Fan;  Liang, Angela;  Cui, Xiaodong;  Gates, Leah;  Carroll, Thomas S.;  Li, Yuanyuan;  Feng, Lijuan;  Chen, Guochao;  Wang, Shu-Ping;  Ortiz, Michael V.;  Daley, Sara K.;  Wang, Xiaolu;  Xuan, Hongwen;  Kentsis, Alex;  Muir, Tom W.;  Roeder, Robert G.;  Li, Haitao;  Li, Wei;  Tjian, Robert;  Wen, Hong;  Allis, C. David
收藏  |  浏览/下载:10/0  |  提交时间:2020/07/03

Modifications of histone proteins have essential roles in normal development and human disease. Recognition of modified histones by '  reader'  proteins is a key mechanism that mediates the function of histone modifications, but how the dysregulation of these readers might contribute to disease remains poorly understood. We previously identified the ENL protein as a reader of histone acetylation via its YEATS domain, linking it to the expression of cancer-driving genes in acute leukaemia1. Recurrent hotspot mutations have been found in the ENL YEATS domain in Wilms tumour2,3, the most common type of paediatric kidney cancer. Here we show, using human and mouse cells, that these mutations impair cell-fate regulation by conferring gain-of-function in chromatin recruitment and transcriptional control. ENL mutants induce gene-expression changes that favour a premalignant cell fate, and, in an assay for nephrogenesis using murine cells, result in undifferentiated structures resembling those observed in human Wilms tumour. Mechanistically, although bound to largely similar genomic loci as the wild-type protein, ENL mutants exhibit increased occupancy at a subset of targets, leading to a marked increase in the recruitment and activity of transcription elongation machinery that enforces active transcription from target loci. Furthermore, ectopically expressed ENL mutants exhibit greater self-association and form discrete and dynamic nuclear puncta that are characteristic of biomolecular hubs consisting of local high concentrations of regulatory factors. Such mutation-driven ENL self-association is functionally linked to enhanced chromatin occupancy and gene activation. Collectively, our findings show that hotspot mutations in a chromatinreader domain drive self-reinforced recruitment, derailing normal cell-fate control during development and leading to an oncogenic outcome.


  
The water lily genome and the early evolution of flowering plants 期刊论文
NATURE, 2020, 577 (7788) : 79-+
作者:  Zhang, Liangsheng;  Chen, Fei;  Zhang, Xingtan;  Li, Zhen;  Zhao, Yiyong;  Lohaus, Rolf;  Chang, Xiaojun;  Dong, Wei;  Ho, Simon Y. W.;  Liu, Xing;  Song, Aixia;  Chen, Junhao;  Guo, Wenlei;  Wang, Zhengjia;  Zhuang, Yingyu;  Wang, Haifeng;  Chen, Xuequn;  Hu, Juan;  Liu, Yanhui;  Qin, Yuan;  Wang, Kai;  Dong, Shanshan;  Liu, Yang;  Zhang, Shouzhou;  Yu, Xianxian;  Wu, Qian;  Wang, Liangsheng;  Yan, Xueqing;  Jiao, Yuannian;  Kong, Hongzhi;  Zhou, Xiaofan;  Yu, Cuiwei;  Chen, Yuchu;  Li, Fan;  Wang, Jihua;  Chen, Wei;  Chen, Xinlu;  Jia, Qidong;  Zhang, Chi;  Jiang, Yifan;  Zhang, Wanbo;  Liu, Guanhua;  Fu, Jianyu;  Chen, Feng;  Ma, Hong;  Van de Peer, Yves;  Tang, Haibao
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/03

Water lilies belong to the angiosperm order Nymphaeales. Amborellales, Nymphaeales and Austrobaileyales together form the so-called ANA-grade of angiosperms, which are extant representatives of lineages that diverged the earliest from the lineage leading to the extant mesangiosperms(1-3). Here we report the 409-megabase genome sequence of the blue-petal water lily (Nymphaea colorata). Our phylogenomic analyses support Amborellales and Nymphaeales as successive sister lineages to all other extant angiosperms. The N. colorata genome and 19 other water lily transcriptomes reveal a Nymphaealean whole-genome duplication event, which is shared by Nymphaeaceae and possibly Cabombaceae. Among the genes retained from this whole-genome duplication are homologues of genes that regulate flowering transition and flower development. The broad expression of homologues of floral ABCE genes in N. colorata might support a similarly broadly active ancestral ABCE model of floral organ determination in early angiosperms. Water lilies have evolved attractive floral scents and colours, which are features shared with mesangiosperms, and we identified their putative biosynthetic genes in N. colorata. The chemical compounds and biosynthetic genes behind floral scents suggest that they have evolved in parallel to those in mesangiosperms. Because of its unique phylogenetic position, the N. colorata genome sheds light on the early evolution of angiosperms.


  
Injured adult neurons regress to an embryonic transcriptional growth state 期刊论文
NATURE, 2020, 581 (7806) : 77-+
作者:  Wang, Ruicong;  Li, Hongda;  Wu, Jianfeng;  Cai, Zhi-Yu;  Li, Baizhou;  Ni, Hengxiao;  Qiu, Xingfeng;  Chen, Hui;  Liu, Wei;  Yang, Zhang-Hua;  Liu, Min;  Hu, Jin;  Liang, Yaoji;  Lan, Ping;  Han, Jiahuai;  Mo, Wei
收藏  |  浏览/下载:22/0  |  提交时间:2020/07/03

Grafts of spinal-cord-derived neural progenitor cells (NPCs) enable the robust regeneration of corticospinal axons and restore forelimb function after spinal cord injury(1)  however, the molecular mechanisms that underlie this regeneration are unknown. Here we perform translational profiling specifically of corticospinal tract (CST) motor neurons in mice, to identify their '  regenerative transcriptome'  after spinal cord injury and NPC grafting. Notably, both injury alone and injury combined with NPC grafts elicit virtually identical early transcriptomic responses in host CST neurons. However, in mice with injury alone this regenerative transcriptome is downregulated after two weeks, whereas in NPC-grafted mice this transcriptome is sustained. The regenerative transcriptome represents a reversion to an embryonic transcriptional state of the CST neuron. The huntingtin gene (Htt) is a central hub in the regeneration transcriptome  deletion of Htt significantly attenuates regeneration, which shows that Htt has a key role in neural plasticity after injury.


In mouse models of central nervous system injury, Htt is shown to be a key component of the regulatory program associated with reversion of the neuronal transcriptome to a less-mature state.


  
CRISPR screen in regulatory T cells reveals modulators of Foxp3 期刊论文
NATURE, 2020
作者:  Xu, Daqian;  Wang, Zheng;  Xia, Yan;  Shao, Fei;  Xia, Weiya;  Wei, Yongkun;  Li, Xinjian;  Qian, Xu;  Lee, Jong-Ho;  Du, Linyong;  Zheng, Yanhua;  Lv, Guishuai;  Leu, Jia-shiun;  Wang, Hongyang;  Xing, Dongming;  Liang, Tingbo;  Hung, Mien-Chie;  Lu, Zhimin
收藏  |  浏览/下载:33/0  |  提交时间:2020/07/03

Regulatory T (T-reg) cells are required to control immune responses and maintain homeostasis, but are a significant barrier to antitumour immunity(1). Conversely, T-reg instability, characterized by loss of the master transcription factor Foxp3 and acquisition of proinflammatory properties(2), can promote autoimmunity and/or facilitate more effective tumour immunity(3,4). A comprehensive understanding of the pathways that regulate Foxp3 could lead to more effective T-reg therapies for autoimmune disease and cancer. The availability of new functional genetic tools has enabled the possibility of systematic dissection of the gene regulatory programs that modulate Foxp3 expression. Here we developed a CRISPR-based pooled screening platform for phenotypes in primary mouse T-reg cells and applied this technology to perform a targeted loss-of-function screen of around 500 nuclear factors to identify gene regulatory programs that promote or disrupt Foxp3 expression. We identified several modulators of Foxp3 expression, including ubiquitin-specific peptidase 22 (Usp22) and ring finger protein 20 (Rnf20). Usp22, a member of the deubiquitination module of the SAGA chromatin-modifying complex, was revealed to be a positive regulator that stabilized Foxp3 expression  whereas the screen suggested that Rnf20, an E3 ubiquitin ligase, can serve as a negative regulator of Foxp3. T-reg-specific ablation of Usp22 in mice reduced Foxp3 protein levels and caused defects in their suppressive function that led to spontaneous autoimmunity but protected against tumour growth in multiple cancer models. Foxp3 destabilization in Usp22-deficient T-reg cells could be rescued by ablation of Rnf20, revealing a reciprocal ubiquitin switch in T-reg cells. These results reveal previously unknown modulators of Foxp3 and demonstrate a screening method that can be broadly applied to discover new targets for T-reg immunotherapies for cancer and autoimmune disease.


A CRISPR-based screening platform was used to identify previously uncharacterized genes that regulate the regulatory T cell-specific master transcription factor Foxp3, indicating that this screening method may be broadly applicable for the discovery of other genes involved in autoimmunity and immune responses to cancer.