Abstract
In Drosophila melanogaster the recessive mutant aristaless ( al) leads to an abnormal orientation of the posterior scutellar bristles. The mutant also affects the shape of the dorsal scutellar surface. Heterozygous al + al flies show more than 10% penetrance in causing mutant-type bristle orientation. By means of genetic mosaics on the scutellum, caused by X-ray-induced somatic crossing-over and marked by areas of yellow pigmentation on a nonyellow background, it is shown that al autonomously leads to abnormal scutellar growth. Secondarily, in cases of such abnormal growth, an aristaless-type direction is imposed on the posterior scutellar bristle, regardless of its own al al or al + al genotype.
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.
