geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Details of retropositional genome dynamics that provide a rationale for a generic division The distinct branching of all the Pacific salmon and trout from the Atlantic salmon and trout


, : Details of retropositional genome dynamics that provide a rationale for a generic division The distinct branching of all the Pacific salmon and trout from the Atlantic salmon and trout. Genetics 142(3): 915-926

Salmonid species contain numerous short interspersed repetitive elements (SINEs), known collectively as the HpaI family, in their genomes. Amplification and successive integration of individual SINEs into the genomes have occurred during the evolution of salmonids. We reported previously a strategy for determining the phylogenctic relationships among the Pacific salmonids in which these SINEs were used as temporal landmarks of evolution. Here, we provide evidence for extensive genomic rearrangements that involved retropositions and deletions in a common ancestor of all the Pacific salmon and trout. Our results provide genetic support for the recent phylogenetic reassignment of steelhead and related species from the genus Salmo to the genus Oncorhynchus. Several other informative loci identified by insertions of HpaI SINEs have been isolated, and previously proposed branching orders of the Oncorhynchus species have been confirmed. The authenticity of our phylogenetic tree is supported both by the isolation of more than two informative loci per branching point and by the congruence of all our data, which suggest that the period between succesive speciations was sufficiently long for each SINE that had been amplified in the original species to become fixed in all individuals of that species.

US$29.90


Other references

Chen, C-Ling.; Zheng, H.; Xuan, Y.; Amat, A.; Chen, L.; Yu, J.; Wang, J., 2016: The cardioprotective effect of hypoxic and ischemic preconditioning in dogs with myocardial ischemia-reperfusion injury using a double-bypass model. The effects of preconditioning on cardioprotection have mainly been studied in vitro. No sufficient in vivo experiments have been performed to optimize ischemic preconditioning (IPC) or hypoxic preconditioning (HPC) for clinical applications. The...

Daddario, E.Q., 1968: A challenge to the scientific community. Proceedings of the National Academy of Sciences of the United States of America 59(2): 305-312

Phillips, M., 1979: Testifying at a coroner's inquest. Health Care 21(10): 43, 45, 48-43, 45, 48

Gueyffier, Fçois., 2003: What is the place for intermediate outcomes one cardiovascular prevention is achieved?. Intermediate criteria will always be useful in the first phases of drug development, e.g. to confirm that the drug acts on lipid parameters as expected from pharmacological model, for they are easier and faster to obtain than clinical criteria suc...

Chen, Y.; Liu, W.; Wang, P.; Hou, H.; Liu, N.; Gong, L.; Wang, Y.; Ji, K.; Zhao, L.; Wang, P., 2016: Halofuginone inhibits radiotherapy-induced epithelial-mesenchymal transition in lung cancer. NlmCategory="UNASSIGNED">Radiotherapy is used to treat many different human tumors. Paradoxically, radiation can activate TGF-β1 signaling and induce the epithelial-mesenchymal transition (EMT), which is associated with enhanced tumo...

Andersson, B.E.; Lundstedt, S.; Tornberg, K.; Schnurer, Y.; Oberg, L.G.; Mattiasson, B., 2003: Incomplete degradation of polycyclic aromatic hydrocarbons in soil inoculated with wood-rotting fungi and their effect on the indigenous soil bacteria. Soil artificially contaminated with fluorene, phenanthrene, pyrene, and benz[a]anthracene was inoculated with the wood-rotting fungi Pleurotus ostreatus and Antrodia vaillantii. During 12 weeks of incubation, polycyclic aromatic hydrocarbon (PAH)...

Noirclerc, M.; Monticelli; Rubin, P.; Rocco, M.; Daniel, M.; Court, E.; Dor, J., 1966: Apropos of the complications of intravenous perfusion of fluids and their prevention. Marseille Medical 103(7): 579-581

Poeschl, S.; Doering, N., 2016: Measuring Co-Presence and Social Presence in Virtual Environments - Psychometric Construction of a German Scale for a Fear of Public Speaking Scenario. Virtual reality exposure therapy (VRET) applications use high levels of fidelity in order to produce high levels of presence and thereby elicit an emotional response for the user (like fear for phobia treatment). State of research shows mixed resu...

Williams, N.H.; Dressler, R.L., 1976: Euglossine pollination of spathiphyllum araceae. Of 26 spp. of euglossine bees which visit Spathiphyllum, only 3 visit more than 1 sp. All those sharing pollinators are allopatric or are in different sections of the genus. Floral fragrances may serve as the isolating mechanism between closely re...

Porzsolt, F., 2008: Assessment of the value of health-care services--the first step. The average increase of health-care expenditures in OECD countries is higher than the corresponding increase in gross national products (GNPs). Therefore, it is necessary in these countries to react to this increase. Although there is agreement th...