Author： HARBER PHYLLIS ANN MUTCHMOR JOHN A.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.63, Iss.6, 1970-11, pp. : 1609-1614
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Early embryogenesis is described for the mosquito Culiseta inornata (Williston). When eggs are deposited they are in meiosis I. Within the 1st hour at 20±l°C, meiosis II occurs. A polar body rosette forms in the periplasm of the egg. Soon after meiosis II, the pronuclei fuse in the anterior third of the deutoplasm, and cleavage I takes place there. Each of the first 5 cleavages is synchronous. At 4 hours after deposition, more than 100 nuclei are in the periplasm of the egg. The pole cells are now evident. Six-hour-old eggs are preblastodermal. In 10-hr-old eggs, cleavage furrows are obvious, and many more nuclei populate the preblastodermal region. At 13 hours after deposition, a differentiated blastoderm forms.
Related content
Access to resources
Recommend
By Meyer Richard P. Washino Robert K. McKenzie Thomas L.
Journal of Medical Entomology, Vol. 19, Iss. 5, 1982-10 ,pp. :