Results described from here on are largely based on llg1-2, the mutant with which this work was initiated; observations made with llg1-1 provided confirmation.
To obtain non-polar deletions, the Cam-resistance gene was removed by transforming each mutant with pCP20, which encodes the FLP recombinase.
We examined the fluorescence response of the labelled V216C mutant with cefoxitin, which is a cephalosporin antibiotic with strong resistance to the hydrolytic activity of TEM-1 [ 31– 33]. Figure 4(A) shows the fluorescence signals of the labelled V216C mutant at different time intervals with different concentrations of cefoxitin.
However, the slow growth of the homozygous mutants probably reduces the efficiency with which they are recovered in suppressor screens.
The ease with which transposon mutants can be generated allows applying TRASH and STM to bacterial populations containing dozens to thousands of different mutants.
Possible factors include the differential speed, with which resistant mutants to either of the antibiotics may be able to spread within the evolving populations.
One major reason for using Drosophila to study meiosis is the ease with which genetic mutants are created, maintained, and shared among members of the Drosophila research community.
We thus only analyzed mutants with enriched abundance, which we interpreted as gene disruptions beneficial to the overproduction of the desired IMP complex.
Furthermore, unlike other methods, IdealKnock suggests a series of mutants with targeted overproduction, which enables researchers to select the one of greatest interest for experimental validation.
Additionally, scientists conducting extensive work on the worms previously have identified several C. elegans mutants with long lifespans, which provide opportunities to explore the molecular and genetic pathways that allow these mutants to live up to 50percentt longer than normal worms.
