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Review

Comparative genome and virion structure

Andrew J. Davison  1 , David Bhella  1
Ann Arvin  1 , Gabriella Campadelli-Fiume  2 , Edward Mocarski  3 , Patrick S. Moore  4 , Bernard Roizman  5 , Richard Whitley  6 , Koichi Yamanishi  7
, editors.
In: Human Herpesviruses: Biology, Therapy, and Immunoprophylaxis. Cambridge: Cambridge University Press; 2007. Chapter 14.
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Review

Comparative genome and virion structure

Andrew J. Davison et al.
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Excerpt

The two major lineages in the Betaherpesvirinae are the cytomegaloviruses (the Cytomegalovirus and Muromegalovirus genera, plus a number of other viruses whose taxonomy is only partially defined) and the Roseolovirus genus (see Chapter 1). The best characterized members of these lineages are HCMV (the prototype of the subfamily) and HHV-6, respectively. Cytomegaloviruses are present in a wide range of mammalian species, and have been termed “salivary gland viruses” because of their ease of isolation from explanted tissue. An earlier divergence of the Betaherpesvirinae may be represented by a herpesvirus of elephants (Richman et al., ; Ehlers et al., 2001). This chapter starts by describing the genome structures of Betaherpesvirinae, then examines the genetic content of HCMV and HHV-6, and finally focuses on the virion structure of HCMV.

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