The Effect Of Rolled Oats On Pupation Site Preference In Drosophila Melanogaster.

The life cycle of the holometabolous insect Drosophila consists of four stages: egg, larva, pupa, and adult.The ability of Drosophila larvae in their third instar to pupate on an appropriate substrate is an important aspect of their life cycle.Drosophila melanogaster larvae were reared on wheat cream agar, 25% oats, 50% oats, and 75% oats media in the current investigation.The findings indicate that in wheat cream agar media, the greatest number of larvae chose to pupate on the bottom region (media), followed by the average number in the middle region (glass) and the lowest number on the neck (cotton).In 25% oats media, the number of larvae pupated were seen to be increased in glass (middle)and cotton (neck)region, while there was decreased pupation percentage was observed in media (bottom)region.The similar trend was also observed in 50% and 75% concentrations of oats media.However, the larvae raised in wheat cream agar media pupated in greater numbers on the bottom region, indicating that the nourishment from varying oats concentrations supplied the energy needed to migrate up from the media to glass and cotton.The quantity and quality of nutrients available in the various media appear to be the main factors affecting the choice of pupation location.The presence of dietary fibre and quality protein supplemented with a regular meal gives the larvae support to go to higher regions for pupation.However, these investigations imply that oats had a major impact on D. melanogaster pupation behaviour.