Results 91 to 100 of about 230,793 (360)

Improving Virus Taxonomy by Recontextualizing Sequence-Based Classification with Biologically Relevant Data: the Case of the Alphacoronavirus 1 Species

mSphere, 2018
The difficulties related to virus taxonomy have been amplified by recent advances in next-generation sequencing and metagenomics, prompting the field to revisit the question of what constitutes a useful viral classification.
Gary R. Whittaker, Nicole M. André, Jean Kaoru Millet   +2 more
doaj   +1 more source

Trees of Unusual Size: Biased Inference of Early Bursts from Large Molecular Phylogenies [PDF]

, 2012
An early burst of speciation followed by a subsequent slowdown in the rate of diversification is commonly inferred from molecular phylogenies. This pattern is consistent with some verbal theory of ecological opportunity and adaptive radiations. One often-overlooked source of bias in these studies is that of sampling at the level of whole clades, as ...
arxiv   +1 more source

Characterization of a novel reassortant H5N6 highly pathogenic avian influenza virus clade 2.3.4.4 in Korea, 2017

Emerging Microbes and Infections, 2018
Dear Editor, Highly pathogenic avian influenza (HPAI) viruses of the H5 subtype remain a serious concern for both poultry and human health. The clade 2.3.4.4 H5 viruses have evolved into four genetic groups (nominally designated A, B, C, and D).
Eun-Kyoung Lee, Y. Lee, S. Kye, N. Lewis, I. Brown, M. Sagong, Gyeong-Beom Heo, Yong-Myung Kang, Hyun-Kyu Cho, Hyunmi Kang, Sun-Ha Cheon, Myeongheon Lee, B. Park, Yong-Joo Kim, Youn-Jeong Lee   +14 more
semanticscholar   +1 more source

Genomic Insights into Post‐Domestication Expansion and Selection of Body Size in Ponies

Advanced Science, EarlyView.
The authors’ research delves into the history of ponies by assembling a pony genome and integrating horse genomes. This unveils genetic connections between Asian and European pony breeds. Cis‐regulatory elements of key genes impacting body size are also identified.
Xingzheng Li, Zihao Wang, Min Zhu, Binhu Wang, Shaohua Teng, Jing Yan, Haoyu Wang, Pengxiang Yuan, Shuwei Cao, Xiaolu Qu, Zhen Wang, Kai Zhan, Md. Panir Choudhury, Xintong Yang, Qi Bao, Sang He, Lei Liu, Pengju Zhao, Jicai Jiang, Hai Xiang, Lingzhao Fang, Zhonglin Tang, Yuying Liao, Guoqiang Yi   +23 more
wiley   +1 more source

Genetic determinants of SARS‐CoV‐2 and the clinical outcome of COVID‐19 in Southern Bangladesh

Immunity, Inflammation and Disease
Background The coronavirus disease 2019 (COVID‐19) pandemic has had a severe impact on population health. The genetic determinants of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) in southern Bangladesh are not well understood.
Md. Mahbub Hasan, Chayan Kumar Saha, H. M. Hamidullah Mehedi, Kallyan Chakma, Asma Salauddin, Md. Shakhawat Hossain, Farjana Sharmen, S. M. Rafiqul Islam, Afroza Akter Tanni, Farhana Yasmin, Al‐Shahriar Akash, Mohammad Enayet Hossain, Mojnu Miah, Sanjoy Kanti Biswas, Nahid Sultana, Adnan Mannan   +15 more
doaj   +1 more source

Novel Reassortant Clade 2.3.4.4 Avian Influenza A(H5N8) Virus in Wild Aquatic Birds, Russia, 2016

Emerging Infectious Diseases, 2017
The emergence of novel avian influenza viruses in migratory birds is of concern because of the potential for virus dissemination during fall migration. We report the identification of novel highly pathogenic avian influenza viruses of subtype H5N8, clade
Dong‐Hun Lee, K. Sharshov, D. Swayne, O. Kurskaya, I. Sobolev, Marsel R Kabilov, A. Alekseev, V. Irza, A. Shestopalov   +8 more
semanticscholar   +1 more source

Cryo‐EM Analysis of a Tri‐Heme Cytochrome‐Associated RC‐LH1 Complex from the Marine Photoheterotrophic Bacterium Dinoroseobacter Shibae

Advanced Science, EarlyView.
Cryo‐EM reveals a closed 17‐subunit LH ring encircling the RC‐LH1 complex in Dinoroseobacter shibae, featuring a novel helix‐turn‐helix subunit bridging RC and LH. Mg2⁺/Ca2⁺ stabilizes the complex, while periplasmic Cyt c₂ mediates electron transfer via a tri‐heme Cyt to the special pair of bacteriochlorophylls. Insights into energy/electron efficiency
Weiwei Wang, Yanting Liu, Jiayi Gu, Shaoya An, Cheng Ma, Haichun Gao, Nianzhi Jiao, Jian‐Ren Shen, John Thomas Beatty, Michal Koblížek, Xing Zhang, Qiang Zheng, Jing‐Hua Chen   +12 more
wiley   +1 more source

Theoretical Analysis of a Large Momentum Beamsplitter using Bloch Oscillations [PDF]

, 2010
In this paper, we present the implementation of Bloch oscillations in an atomic interferometer to increase the separation of the two interfering paths. A numerical model, in very good agreement with the experiment, is developed. The contrast of the interferometer and its sensitivity to phase fluctuations and to intensity fluctuations are also ...
arxiv   +1 more source

Expansion of a urethritis-associated Neisseria meningitidis clade in the United States with concurrent acquisition of N. gonorrhoeae alleles

BMC Genomics, 2018
BackgroundIncreased reports of Neisseria meningitidis urethritis in multiple U.S. cities during 2015 have been attributed to the emergence of a novel clade of nongroupable N. meningitidis within the ST-11 clonal complex, the “U.S. NmNG urethritis clade”.
Adam C. Retchless, C. Kretz, J. Bazan, Jeanine Abrams, C. Kretz, How-Yi Chang, A. J. Abrams, A. N. Turner, Laurel T Jenkins, D. Trees, Yih-Ling Tzeng, D. Stephens, Jessica R Macneil, Xin Wang   +13 more
semanticscholar   +1 more source

Origins, Dispersal, and Impact: Bidirectional Introgression Between Chinese and European Pig Populations

Advanced Science, EarlyView.
This study investigates bidirectional introgression between Chinese and European pig populations, revealing 3558 introgressed genomic segments and 30 structural variations. Analysis of the BMP2 region suggests its role in body size enhancement. By integrating ancient and modern genomes, the study highlights the impact of introgression on genetic ...
Yibin Qiu, Langqing Liu, Min Huang, Donglin Ruan, Rongrong Ding, Zebin Zhang, Enqin Zheng, Shiyuan Wang, Shaoxiong Deng, Xianglun Meng, Xinyan Cheng, Jiaxin Shi, Yingshan Yang, Fuchen Zhou, Sixiu Huang, Huaqiang Yang, Zicong Li, Gengyuan Cai, Zhenfang Wu, Jie Yang   +19 more
wiley   +1 more source