Morphological Identities of Two Different Marine Stramenopile Environmental Sequence Clades: Bicosoeca kenaiensis (Hilliard, 1971) and Cantina marsupialis (Larsen and Patterson, 1990) gen. nov., comb. nov.

2015 ◽  
Vol 62 (4) ◽  
pp. 532-542 ◽  
Author(s):  
Naoji Yubuki ◽  
Tomáš Pánek ◽  
Akinori Yabuki ◽  
Ivan Čepička ◽  
Kiyotaka Takishita ◽  
...  
Keyword(s):  
Environmental Sequence

Late Quaternary change in the mountains of New Guinea

Antiquity ◽  
1995 ◽  
Vol 69 (265) ◽  
pp. 818-830 ◽  
Author(s):  
Geoff Hope ◽  
Jack Golson
Keyword(s):  
Late Quaternary ◽  
New Guinea ◽  
Mountainous Areas ◽  
The South ◽  
Environmental Sequence ◽  
The North ◽  
Australian Continent

At the south and north limits of our region are mountainous areas very different from the open arid spaces of the Australian continent between. In the north, the high country of New Guinea offers a complex and well-studied environmental sequence as the arena for early and puzzling human adaptations, precursor of the extraordinary societies of the island today.

scholarly journals Advantages and limits of metagenomic assembly and binning of a giant virus

2020 ◽  
Author(s):  
Frederik Schulz ◽  
Julien Andreani ◽  
Rania Francis ◽  
Jacques Yaacoub Bou Khalil ◽  
Janey Lee ◽  
...  
Keyword(s):  
Size Range ◽  
Sequence Data ◽  
Giant Virus ◽  
Sample Matrix ◽  
Environmental Sequence ◽  
Successful Recovery ◽  
Metagenome Assembly ◽  
Giant Viruses ◽  
Metagenomic Assembly ◽  
Virus Genomes

AbstractGiant viruses have large genomes, often within the size range of cellular organisms. This distinguishes them from most other viruses and demands additional effort for the successful recovery of their genomes from environmental sequence data. Here we tested the performance of genome-resolved metagenomics on a recently isolated giant virus, Fadolivirus, by spiking it into an environmental sample from which two other giant viruses were isolated. At high spike-in levels, metagenome assembly and binning led to the successful genomic recovery of Fadolivirus from the sample. A complementary survey of viral hallmark genes indicated the presence of other giant viruses in the sample matrix, but did not detect the two isolated from this sample. Our results indicate that genome-resolved metagenomics is a valid approach for the recovery of near-complete giant virus genomes given that sufficient clonal particles are present. Our data also underline that a vast majority of giant viruses remain currently undetected, even in an era of terabase-scale metagenomics.

scholarly journals A Need for Improved Cellulase Identification from Metagenomic Sequence Data

2020 ◽  
Vol 87 (1) ◽  
Author(s):  
Rebecca Co ◽  
Laura A. Hug
Keyword(s):  
Sequence Data ◽  
Industrial Applications ◽  
Data Sets ◽  
Metagenomic Sequence ◽  
Environmental Sequence ◽  
Sequencing Technologies ◽  
Current Classification ◽  
Applied Microbiology ◽  
Environmental Surveys ◽  
Metagenomic Sequence Data

ABSTRACT Improved sequencing technologies and the maturation of metagenomic approaches allow the identification of gene variants with potential industrial applications, including cellulases. Cellulase identification from metagenomic environmental surveys is complicated by inconsistent nomenclature and multiple categorization systems. Here, we summarize the current classification and nomenclature systems, with recommendations for improvements to these systems. Addressing the issues described will strengthen the annotation of cellulose-active enzymes from environmental sequence data sets—a rapidly growing resource in environmental and applied microbiology.

scholarly journals Complete Genome Sequence of the Environmental Burkholderia pseudomallei Sequence Type 131 Isolate MSHR1435, Associated with a Chronic Melioidosis Infection

2018 ◽  
Vol 6 (11) ◽  
Author(s):  
Jason W. Sahl ◽  
Mark Mayo ◽  
Erin P. Price ◽  
Derek S. Sarovich ◽  
Mirjam Kaestli ◽  
...  
Keyword(s):  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Burkholderia Pseudomallei ◽  
Sequence Type ◽  
Content Type ◽  
Environmental Sequence ◽  
St131 Isolate

ABSTRACT The Burkholderia pseudomallei isolate MSHR1435 is a fully virulent environmental sequence type 131 (ST131) isolate that is epidemiologically associated with a 17.5-year chronic melioidosis infection. The completed genome will serve as a reference for studies of environmental ecology, virulence, and chronic B. pseudomallei infections.

scholarly journals Ounjougou (Mali): A history of holocene settlement at the southern edge of the Sahara

Antiquity ◽  
2004 ◽  
Vol 78 (301) ◽  
pp. 579-593 ◽  
Author(s):  
E. Huysecom ◽  
S. Ozainne ◽  
F. Raeli ◽  
A. Ballouche ◽  
M. Rasse ◽  
...  
Keyword(s):  
West African ◽  
Sahara Desert ◽  
The South ◽  
Human Occupation ◽  
Upper Pleistocene ◽  
The Holocene ◽  
Environmental Sequence ◽  
History Of ◽  
Holocene Period

The area of Ounjougou consists of a series of gullies cut through Upper Pleistocene and Holocene formations on the Dogon Plateau in the Sahel at the south edge of the Sahara Desert. Here the authors have chronicled a stratified sequence of human occupation from the tenth to the second millennium BC, recording natural and anthropogenic strata containing artefacts and micro- and macro- palaeoecological remains, mostly in an excellent state of preservation. They present a first synthesis of the archaeological and environmental sequence for the Holocene period, define five main occupation phases for Ounjougou, and attempt to place them within the context of West African prehistory.

scholarly journals CREST – Classification Resources for Environmental Sequence Tags

PLoS ONE ◽  
2012 ◽  
Vol 7 (11) ◽  
pp. e49334 ◽  
Author(s):  
Anders Lanzén ◽  
Steffen L. Jørgensen ◽  
Daniel H. Huson ◽  
Markus Gorfer ◽  
Svenn Helge Grindhaug ◽  
...  
Keyword(s):  
Environmental Sequence

The Environmental and Social Context of the Isleham Hoard

2010 ◽  
Vol 90 ◽  
pp. 73-130 ◽  
Author(s):  
Tim Malim ◽  
Steve Boreham ◽  
David Knight ◽  
George Nash ◽  
Richard Preece ◽  
...  
Keyword(s):  
Social Context ◽  
Bronze Age ◽  
Osl Dating ◽  
Terrestrial Vegetation ◽  
Dry Land ◽  
Environmental Sequence ◽  
Exact Location ◽  
The Bronze Age

AbstractThis paper describes the rediscovery of the exact location for the Isleham hoard (tl 63197253) and presents the results of related fieldwork; it briefly reviews the metallurgical significance of the hoard, and discusses its local environmental and social context, as well as the distribution of founder's hoards within the Fenland region.The hoard was found to have been placed in a pit dug into a filled-in Bronze Age boundary ditch, next to a rectangular building, and adjacent to the edge of low-lying wetland bordering a palaeochannel which revealed an environmental sequence stretching from the Mesolithic to the Bronze Age. This area is also in proximity to a possible ringwork. Mesolithic and Neolithic activity is evidenced by residual flint tools and pottery. By the Bronze Age the tongue of fen next to the hoard had begun to be invaded by ferns and terrestrial vegetation and its latest peat phase was radiocarbon dated to 4045 ± 62 bp. Molluscs within the boundary ditch show an open landscape with a mixture of dryland and wetland taxa, and the presence of Vertigo angustior, a rare British species no longer known from Cambridgeshire, and one indicative of transitional habitats between wet and dry land. This landscape was probably contemporary with the deposition of the hoard.Current typological and radiocarbon analysis for Wilburton metalwork would suggest a date within the period 1150 to 1000 bc for the hoard, whilst a typological assessment of the pot in which the hoard was found suggests an affinity with Post-Deverel-Rimbury (PDR) Plainware dated currently from around 1150 to 800 bc. OSL dating of a sample of the pot containing the hoard yielded a date of 1460 ± 230 bc at 1 sigma.The locations of other founder's hoards within the region suggest a clustering in the southern fens and South Cambridgeshire, apparently related to ancient routeways.

Reference Tree and Environmental Sequence Diversity of Labyrinthulomycetes

2016 ◽  
Vol 64 (1) ◽  
pp. 88-96 ◽  
Author(s):  
Jingwen Pan ◽  
Javier del Campo ◽  
Patrick J. Keeling
Keyword(s):  
Sequence Diversity ◽  
Reference Tree ◽  
Environmental Sequence

Technical Method to Study Climatic Environmental Change in Desert Region by Tamarix Cones

2012 ◽  
Vol 599 ◽  
pp. 888-893
Author(s):  
Hui Wang ◽  
Jia Zeng ◽  
Jing Zhang ◽  
Zeng Ying Sun ◽  
Yuan Jie Zhao
Keyword(s):  
High Resolution ◽  
Environmental Change ◽  
Theoretical Basis ◽  
Environmental Information ◽  
Desert Region ◽  
Environmental Sequence ◽  
The Past ◽  
Study Case ◽  
Lop Nor

Taking Lop Nor as a study case, the paper not only systematically discusses the dating of the Tamarix cone, the methods and technical routes to extract its climatic environmental information, but also interprets the environmental change in Lop Nor region in the past about one hundred and sixty years, which provides a new theoretical basis and technical reference for building the high-resolution environmental sequence in the relevant area.

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