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Public Release: 1-Apr-2015
Genome Research
Longer DNA fragments reveal rare species diversity
A challenge in metagenomics is that the more commonly used sequencing machines generate data in short lengths, while short-read assemblers may not be able to distinguish among multiple occurrences of the same or similar sequences, making it difficult to identify all the members in a microbial community. In the April 2015 issue of Genome Research, a team including DOE JGI researchers compared two ways of using next generation Illumina sequencing machines to help with this.
DOE/Office of Science

Contact: David Gilbert
degilbert@lbl.gov
DOE/Joint Genome Institute

Public Release: 1-Apr-2015
Geology
Oxygen-depleted toxic oceans had key role in mass extinction over 200 million years ago
Changes in the biochemical balance of the ocean were a crucial factor in the end-Triassic mass extinction, during which half of all plant, animal and marine life on Earth perished, according to new research involving the University of Southampton.

Contact: Steven Williams
s.williams@soton.ac.uk
0238-059-2128
University of Southampton

Public Release: 1-Apr-2015
Proceedings of the Royal Society B
Diversity prevents resistance
A diverse and species-rich agricultural landscape is also beneficial to farmers. This isn't just because there are plenty of pollinating insects, creepy crawly pest controllers and other useful helpers. Scientists at the Helmholtz Centre for Environmental Research in Leipzig have come across another effect, which has thus far been unknown: in species-rich habitats, pests don't become resistant to chemical control measures so quickly, according to their publication in the scientific journal Proceedings of the Royal Society B.

Contact: Dr. Matthias Liess
matthias.liess@ufz.de
49-341-235-1578
Helmholtz Centre for Environmental Research - UFZ

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Diverse Habitat

Diverse Habitat
In habitats rich in different species, pests don't become resistant to chemical control agents as quickly.

Contact: Dr. Matthias Liess
matthias.liess@ufz.de
49-341-235-1578
Helmholtz Centre for Environmental Research - UFZ

Oxygen-Depleted Toxic Oceans Had Key Role in Mass Extinction

Oxygen-Depleted Toxic Oceans Had Key Role in Mass Extinction
Life of the Triassic met a choking end in a runaway greenhouse climate, heating the seas into warm stagnation. The greenhouse was caused by CO2 released by massive outpourings of basalt from fissure ...

Contact: Steven Williams
s.williams@soton.ac.uk
0238-059-2128
University of Southampton

Energy Intake and Greenhouse Gas Emissions for Different Food Types

Energy Intake and Greenhouse Gas Emissions for Different Food Types
Energy intake and greenhouse gas emissions for different food types, and aggregate effects for different diets. The "current diet" refers to the average for Sweden. Smallest climate impacts are ...

Contact: David Bryngelsson
david.bryngelsson@chalmers.se
46-070-440-2125
Chalmers University of Technology

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