Abstract:
:Cyclobutane pyrimidine dimer (CPD) photolyases repair ultraviolet (UV)-induced DNA damage using blue light. To get insight in the origin of baculovirus CPD photolyase (phr) genes, homologues in the lepidopteran insects Chrysodeixis chalcites, Spodoptera exigua and Trichoplusia ni were identified and characterized. Lepidopteran and baculovirus phr genes each form a monophyletic group, and together form a well-supported clade within the insect photolyases. This suggests that baculoviruses obtained their phr genes from an ancestral lepidopteran insect host. A likely evolutionary scenario is that a granulovirus, Spodoptera litura GV or a direct ancestor, obtained a phr gene. Subsequently, it was horizontally transferred from this granulovirus to several group II nucleopolyhedroviruses (NPVs), including those that infect noctuids of the Plusiinae subfamily.
journal_name
Insect Mol Bioljournal_title
Insect molecular biologyauthors
Biernat MA,Ros VI,Vlak JM,van Oers MMdoi
10.1111/j.1365-2583.2011.01076.xsubject
Has Abstractpub_date
2011-08-01 00:00:00pages
457-64issue
4eissn
0962-1075issn
1365-2583journal_volume
20pub_type
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