Abstract:
:Autogeny, the ability of a mosquito to mature an initial batch of eggs without blood feeding, is an alternative reproductive strategy with important implications for vector-borne disease transmission. Regulation of the major yolk protein (vitellogenin; Vg) genes during bloodmeal-induced oogenesis is well studied, but little is known about regulation of vitellogenesis in autogenous mosquitoes. We characterized the expression of four vitellogenin genes (Vg1a, Vg1b, Vg2a and Vg2b) in an autogenous strain of the West Nile Virus vector, Culex tarsalis. All vitellogenin genes were expressed during autogenous reproduction and following a bloodmeal, although the intensity and duration of expression varied amongst genes. Quantitative PCR analysis of vitellogenin transcription during autogeny revealed a similar temporal pattern to known vitellogenin expression profiles in anautogenous Aedes aegypti. Vitellogenin transcript, primarily produced from the Vg1b gene, was also detected in the larval and pupal stages of development, but no detectable vitellogenin protein was produced during this time period.
journal_name
Insect Mol Bioljournal_title
Insect molecular biologyauthors
Provost-Javier KN,Chen S,Rasgon JLdoi
10.1111/j.1365-2583.2010.00999.xsubject
Has Abstractpub_date
2010-08-01 00:00:00pages
423-9issue
4eissn
0962-1075issn
1365-2583pii
IMB999journal_volume
19pub_type
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