linkedin post 2016-06-07 04:24:36

Uncategorized
UREA IN DIATOMS? "One of the first surprises to emerge from the sequencing of diatom genomes was the presence of an apparently fully functional urea cycle. Diatoms were, in fact, the first photosynthetic organisms to contain all the genes for such a cycle...Prior to its discovery in diatoms, it was believed to have been a metazoan innovation." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn
Read More

linkedin post 2016-06-09 05:12:06

Uncategorized
HIGH MUTATION RATE. "As a consequence of the lack of proofreading activity of RNA virus polymerases, new viral genetic variants are constantly created. RNA viruses readily adapt to changing environmental conditions. Therefore, the high mutation rate of RNA viruses compared with DNA organisms is responsible for their enormous adaptive capacity." https://lnkd.in/e9KGgbm View in LinkedIn
Read More

linkedin post 2016-06-07 04:19:24

Uncategorized
THREE GENE SOURCES IN DIATOMS. "The evolutionary trajectory of diatoms has brought together a highly unorthodox combination of genes derived by endosymbiotic gene transfer from two secondary endosymbionts to the exosymbiont nucleus, as well as by horizontal gene transfer that permitted numerous additional acquisitions from bacteria and Archaea." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn
Read More

linkedin post 2016-06-07 04:14:44

Uncategorized
HGT IN DIATOMS. "These genes were not found in any other photosynthetic eukaryotes (other than other heterokonts), and it is believed that they have provided diatoms with increased flexibility in their regulatory and metabolic networks that may have contributed to their evolutionary success." (HGT = Horizontal Gene Transfer). http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn
Read More

linkedin post 2016-06-07 04:12:04

Uncategorized
DIATOMS AND HGT. "Besides providing evidence for the ancient secondary endosymbiotic event at the origin of diatoms (and perhaps all chromalveolates), it was found that diatom genomes also contain a large number of genes (587 in P. tricornutum) proposed to be derived from bacteria by horizontal gene transfer." (HGT = Horizontal Gene Transfer). http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn
Read More

linkedin post 2016-06-09 05:02:05

Uncategorized
"HIGH MUTATION RATES of viruses combined with short generation times and pressures of natural selection allow viruses to quickly adapt to new environments. Add in vigorous horizontal gene transfer between viruses and other species, the genetic options multiply very fast." https://lnkd.in/e_-Sepw View in LinkedIn
Read More