Andrew Toseland
A5051829918- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Protist diversity and phylogeny
- Marine and coastal ecosystems
- RNA and protein synthesis mechanisms
- Diatoms and Algae Research
- Marine Biology and Ecology Research
- RNA modifications and cancer
- Trace Elements in Health
- Methane Hydrates and Related Phenomena
- Ocean Acidification Effects and Responses
- Polar Research and Ecology
- Photoreceptor and optogenetics research
- Arctic and Antarctic ice dynamics
- Photosynthetic Processes and Mechanisms
Norwich Research Park
2013-2025
University of East Anglia
2013-2025
University of Plymouth
2024
The genome of the Southern Ocean phytoplankton Fragilariopsis cylindrus differs markedly from genomes its more temperate relatives, with divergent alleles being differentially expressed in environmentally specific conditions such as freezing and darkness. Diatoms are main primary producers Ocean, but how they have adapted to an environment extremes light temperature has remained unknown. Here Thomas Mock et al. report sequence a cold-adapted diatom cylindrus, compare this 'psychrophile'...
Eukaryotic phytoplankton are responsible for at least 20% of annual global carbon fixation. Their diversity and activity shaped by interactions with prokaryotes as part complex microbiomes. Although differences in their local species have been estimated, we still a limited understanding environmental conditions compositional between communities on large scale from pole to pole. Here, show, based pole-to-pole metatranscriptomes microbial rDNA sequencing, that polar non-polar upper oceans most...
Abstract The Multidisciplinary Observatory for Study of the Arctic Climate (MOSAiC) expedition consisted a year-long drifting survey Central Ocean. ecosystems component MOSAiC included sampling molecular data, with metagenomes collected from diverse range environments. generation metagenome-assembled-genomes (MAGs) are starting point genome-resolved analyses. This dataset presents catalogue MAGs recovered set 73 samples MOSAiC, including 2407 prokaryotic and 56 eukaryotic MAGs, as well...
Secondary loss of photosynthesis is observed across almost all plastid-bearing branches the eukaryotic tree life. However, genome-based insights into transition from a phototroph secondary heterotroph have so far only been revealed for parasitic species. Free-living organisms can yield unique evolutionary consequence photosynthesis, as lifestyle requires specific adaptations to host environments. Here, we report on diploid genome free-living diatom Nitzschia putrida (35 Mbp),...
Abstract Microbial rhodopsins are photoreceptor proteins that convert light into biological signals or energy. Proteins of the xanthorhodopsin family common in eukaryotic photosynthetic plankton including diatoms. However, their role these organisms remains elusive. Here we report on a variant ( Fc R1) isolated from polar diatom Fragilariopsis cylindrus . Applying combination biophysical, biochemical and reverse genetics approaches, demonstrate R1 is plastid-localized proton pump which binds...
The international and interdisciplinary sea-ice drift expedition “The Multidisciplinary drifting Observatory for the Study of Arctic Climate” (MOSAiC) was conducted from October 2019 to September 2020. aim MOSAiC study interconnected physical, chemical, biological characteristics processes atmosphere deep sea central system. ecosystem team addressed current knowledge gaps explored unknown properties over a complete seasonal cycle focusing on three major research areas: biodiversity,...
Metatranscriptome sequence data can contain highly redundant sequences from diverse populations of microbes and so reduction techniques are often applied before taxonomic functional annotation. For metagenomic data, it has been observed that the variable coverage presence closely related organisms lead to fragmented assemblies containing chimeric contigs may reduce accuracy downstream analyses some advocate use alternate techniques. However, is unclear how such impact annotation...
Abstract Secondary loss of photosynthesis is observed across almost all plastid-bearing branches the eukaryotic tree life. However, genome-based insights into transition from a phototroph secondary heterotroph have so far only been revealed for parasitic species. Free-living organisms can yield unique evolutionary consequence photosynthesis, as lifestyle requires specific adaptations to host environments. Here we report on diploid genome free-living diatom Nitzschia putrida (35 Mbp),...