Editor’s Selections: DNA virus quasispecies (not), when the end is the story, and an arterial scaffold for the lymphatic system

Editor's Selections 5 Comments
By Vincent Racaniello

Vincent RacanielloVincent Racaniello selects several notable posts each week from molecular and cellular biology and virology. He blogs at virology blog.

  • RNA viruses, with their high replication error rates, are most prone to forming quasispecies. DNA viral genomes replicate with much greater fidelity – but whether or not they form quasispecies has not been answered.
  • The DNA genome of human herpesvirus six (HHV-6), the etiologic agent of the common childhood illness roseola infantum, integrates into human chromosomal DNA and is passed in the germline. Its maintenance in the genome may be related to the fact that the viral DNA is integrated in the ends of chromosomes – telomeres.
  • While much is known about what the lymphatic system does, not much is known about how it forms. By studying transgenic zebrafish in which a red fluorescent protein labelled developing arteries and veins, and a green fluorescent protein labelled developing lymph vessels, it was determined that developing lymph vessels are closely associated with developing arterial vessels.

I’ll be back next Friday with more selections.

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5 Responses to “Editor’s Selections: DNA virus quasispecies (not), when the end is the story, and an arterial scaffold for the lymphatic system”

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