A. tumefaciens genomic DNA extraction agarose results:

FIGURE ONE ***** Results of A. tumefaciens genomic DNA extraction ***

Figure 1. GelRed stained 1% agarose gel of genomic DNA extraction from A. tumefaciens.

In lanes 1 and 11 there is a 1kb ladder. In lane 2 is the DNA1.1 flow through, lane 3 is the DNA2.2 flow through, lane 4 is the DNA2.1 flow through and lane 4 in the DNA2.2 flowthrough. All four samples show a smear that is indicative of genomic DNA. The extraction has been successful.

Nanodrop absorbance readings:

= SUCCESS!

Fwd and Rvs primers for amplification of the full length A. tumefaciens BphP gene:

Fwd and Rvs primers for amplification of the full length A. tumefaciens BphP gene for insertion in the operon BEFORE the HO gene:

Fwd and Rvs primers for amplification of the full length A. tumefaciens BphP gene:

Fwd and Rvs primers for amplification of the full length A. tumefaciens BphP gene for insertion in the operon AFTER the HO gene in the operon:

Fwd and Rvs primers for amplification of the full length A. tumefaciens BphP gene for insertion in the operon AFTER the HO gene as well as the addition of a ribosome binding site or Shine Delgano sequence:

Initial PCR

The PCR program was set up as per the following:

1. 94˚C for 2 minutes
2. 94˚C for 30 seconds
3. 60˚C for 30 seconds
4. 72˚C for 2 minutes & 30 seconds

(This was repeated for another 25 cycles)

5. 72˚C for 10 minutes
6. 4˚C to end.

Experimental Design – Primer combinations:

FIGURE two ***** Results of the initial PCR ***

Figure 2. GelRed stained 1.2% agarose gel of initial PCR of A. tumefaciens using various primers.

In lanes 1 and 11 there is a 1kb ladder. In lane 2 is the DNA1.2 template with F1 and R1 primer pair.

In lane 3 is the DNA2.2 template with F1 and R1 primer pair. In lane 4 is the DNA1.2 template with F2 and R1 primer pair. In lane 5 is the DNA2.2 template with the F2 and R1 primer pair. In lanes 6 and 7 there is nothing loaded as the wells were damaged. In lane 8 there is the DNA1.2 template with F3 and R1 primer pair. In lane 9 there is the DNA2.2 template with the F3 and R1 primer pair and in lane 10 there is the ssH2O negative control. A product is seen in lane 9 – this is the DNA2.2 template with the F3 and R1 primers! This means that we have a A. tumefaciens bacteriophytochrome product with a ribosome binding sight inserted.

The PCR program was set up as per the following:

1. 94˚C for 2 minutes
2. 94˚C for 30 seconds
3. 60˚C for 30 seconds
4. 72˚C for 2 minutes & 30 seconds

(This was repeated for another 25 cycles)

5. 72˚C for 10 minutes
6. 4˚C to end.

Experimental Design – Primer combinations:

FIGURE THREE ***** PCR optimization results ***

Figure 3. GelRed stained 2% agarose gel of optimized PCR of A. tumefaciens bacteriophytochrome using various primers. In lanes 1 and 15 there is a 100bp ladder. In lane 2 is the DNA2.2 sample with F1 and R1 primer pair. In lane 3 there is PCR product template (from DNA2.2 sample) with F1 and R1 primer pair. In lane 4 there is DNA sample with F2 and R1 primer pair. In lane 5 is the PCR product (from DNA2.2 sample) with F2 and R1 primer pair. In lane 6 there is DNA2.2 sample with F3 and R1 primer pair. In lane 7 there is PCR product template (from DNA2.2 sample) with F3 and R1 primer pair. In lane 8 there is DNA2.2 sample with F1 and R2 primer pairs. In lane 9 there is PCR product template (from DNA2.2 sample) with F1 and R2 primer pairs. In lane 10 there is DNA2.2 sample with F2 and R2 primer pairs. In lane 11 there is PCR product (from DNA2.2 sample) with F2 and R2 primer pair. In lane 12 there is DNA2.2 sample with F2 and R2 primer pair. In lane 13 there is PCR product (from DNA2.2 sample) with F3 and R2 primer pair. In lane 14 there is ssH2O negative control with F1 and R1 primer pair. All the lanes worked. There is a weird result in lane 7 which is probably due to non-specific binding. = SUCCESS!

• The first primer pair is F2 (AT-BHO-F) with R3 (AT-BHO-R) [this will insert the bacteriophytchrome gene BEFORE the heme oxygenase gene in the operon]
• The second primer pair is F4 (AT-AHO-F) with R2 (AT-AHO-R) [this will insert the bacteriophytochrome gene AFTER the heme oxygenase gene in the operon]