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The Marine Microbial Eukaryote Transcriptome Sequencing Project (MMETSP): Illuminating the Functional Diversity of Eukaryotic Life in the Oceans through Transcriptome Sequencing
This Community Page describes a resource of 700 transcriptomes from marine microbial eukaryotes to help understand their role in the world's oceans.
The Atlantic salmon genome provides insights into rediploidization
It is found that genes that were retained as duplicates after the teleost-specific whole-genome duplication 320 million years ago were not more likely to be retained after the Ss4R, and that the duplicate retention was not influenced to a great extent by the nature of the predicted protein interactions of the gene products.
Phylogenomics Reshuffles the Eukaryotic Supergroups
This work reports the sequencing of expressed sequence tags for two species belonging to the supergroup Rhizaria and presents the analysis of a unique dataset combining 29908 amino acid positions and an extensive taxa sampling made of 49 mainly unicellular species representative of all supergroups.
Ancient hybridizations among the ancestral genomes of bread wheat
It is implied that the present-day bread wheat genome is a product of multiple rounds of hybrid speciation (homoploid and polyploid) and lay the foundation for a new framework for understanding the wheat genome as a multilevel phylogenetic mosaic.
Genetic divergence and phylogeographic relationships among European perch (Perca fluviatilis) populations reflect glacial refugia and postglacial colonization
- C. Nesbø, T. Fossheim, L. A. Vøllestad, K. Jakobsen
- Biology, MedicineMolecular ecology
- 1 September 1999
Investigation of postglacial colonization routes of freshwater fishes in Europe suggests that present perch populations in western and northern Europe were colonized from three main refugia, located in southeastern, northeastern and western Europe.
Natural Variation in the Microcystin Synthetase Operon mcyABC and Impact on Microcystin Production in Microcystis Strains
The results suggest that recombination between imperfect repeats, gene loss, and horizontal gene transfer can explain the distribution and variation within the mcyABC operon.
Evolution of Cyanobacteria by Exchange of Genetic Material among Phyletically Related Strains
It is suggested that exchange of genetic material for neutrally evolving genes may explain the apparent stability of cyanobacterial morphological characters, perhaps over billions of years.
Multigene Phylogeny of Choanozoa and the Origin of Animals
Animals are evolutionarily related to fungi and to the predominantly unicellular protozoan phylum Choanozoa, together known as opisthokonts. To establish the sequence of events when animals evolved…
The genome sequence of Atlantic cod reveals a unique immune system
The genome sequence of Atlantic cod is presented, showing evidence for complex thermal adaptations in its haemoglobin gene cluster and an unusual immune architecture compared to other sequenced vertebrates.
Strain characterization and classification of oxyphotobacteria in clone cultures on the basis of 16S rRNA sequences from the variable regions V6, V7, and V8
- K. Rudi, O. Skulberg, F. Larsen, K. Jakobsen
- Medicine, BiologyApplied and environmental microbiology
- 1 July 1997
An accurate method for characterization, classification and identification of oxyphotobacterial clone cultures has been developed using the DNA sequence polymorphism in the 16S rRNA regions V6 to V8 for individual strain characterization and identification.