Abstract
In Drosophila, the Antennapedia complex (ANTC) and bithorax complex (BXC) include homeotic (Hox) genes regulating developmental commitments in the relatively anterior and posterior portions of the embryo, respectively. The ANTC includes other developmentally significant genes as well. The beetle Tribolium has a single complex including orthologs of all of the homeotic genes and at least the non-homeotic genes zerknüllt and fushi tarazu ; a single complex is likely to be typical of insects in general. Available data suggest that the Tribolium complex includes large transcription units and intergenic distances important to the elaborate regulation of some Drosophila homeotic genes. Expression patterns and mutant phenotypes of homeotic genes in Tribolium indicate that it shares with Drosophila a colinearity between chromosomal order and function along the anterior–posterior axis (with one exception in common as well). However, differences between Drosophila, Tribolium and some other species suggest that changes in homeotic gene function have accompanied evolution of the impressive morphological diversity displayed by insects.
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.
