Abstract
In eggs of many insects there exists a characteristic structure called an oosom that is required for the formation and differentiation of primordial germ cells (PGCs). Thermobia domestica (Packard) belongs to the group of insects in which there are no visible signs of such germ cell determinants and PGCs are formed at the later stages of development. Spontaneous and experimental polyembryony helps to resolve the problem of germ cells determinants existence. The stratification of cytoplasmic inclusions in T. domestica eggs causes the displacement of germ cells determinants. As a result, all twin embryos and some single embryos (experimental polyembryony) have sterile gonads.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
