20220301 Re-extracting RNA DNA extractions for E5 project

DNA/RNA extractions from E5 project

Extractions from one of the three coral species from each of the four timepoints


Extraction Date: March 1, 2022

Samples

Tube number Timepoint Species Colony ID Coll date Site
165 January Porites POR-362 20200106 3
171 January Porites POR-70 20200106 3
181 January Porites POR-77 20200110 1
361 March Porites POR-355 20200304 3
371 March Porites POR-338 20200304 3
557 Sept Porites POR-260 20200910 2
579 Sept Porites POR-381 20200908 3
585 Sept Porites POR-354 20200908 3
749 November Porites POR-74 20201101 1
787 November Porites POR-338 20201031 3
923 November Porites POR-240 20201031 3
927 November Porites POR-253 20201031 3

20220301_samples.jpg

Extraction notes

  • I looked at each sample, for those samples that were darker (209, 353, 475, and 843) I took 100ul of sample and added it to 200ul of new shield
  • For samples that were lighter in pigment, (19, 97, 149, 191, 543, 591, and 867) I took 200ul of sample and added to 100ul of new shield
  • Spun down samples for 3 minutes at 9000 rcf and then transfer the supernatant to new tube without disturbing the pellet
  • 300ul of shield, 15ul of ProK, and 30ul of ProK digestion buffer, let sit for 10 minutes
  • All spins were done for 1 minute or 2.30 minutes
  • Did two washes with 700ul of wash buffer for both the DNA and RNA
  • Then followed the protocol as described in protocol

Qubit

  • Used Broad range dsDNA and RNA Qubit Protocol
  • All samples read twice, standard only read once

DNA

Tube number RFU DNA 1 (ng/uL) DNA 2 (ng/uL) Average
Standard 1 192.47      
Standard 2 20809.40      
165   6.58 6.40 6.49
171   4.36 4.34 4.35
181   2.30 2.28 2.29
333   2.68 2.64 2.66
361   2.68 2.54 2.61
371   2.06 2.02 2.04
557   5.68 5.58 5.63
579   2.10 2.00 2.05
585   2.80 2.76 2.78
749   2.62 2.60 2.61
787   38.2 37.6 37.9
823   24.4 24.2 24.3

RNA

Tube number RFU RNA 1 (ng/uL) RNA 2 (ng/uL) Average
Standard 1 420.48      
Standard 2 10534.41      
165   30.8 30.6 30.7
171   26.2 26.8 26.5
181   20.2 19.8 20.0
333   22.6 22.6 22.6
361   29.6 30.0 29.8
371   15.6 15.8 15.7
557   nd nd nd
579   15.6 15.6 15.6
585   27.2 26.8 27.0
749   25.8 26.2 26.0
787   16.4 16.6 16.5
823   14.2 14.4 14.3

Tape Station

  • Samples not analyzed

Gel

  • Modified from this protocol
  • Added 0.75g of agarose and 50ml of 1x TAE to flask and microwaved for 45 seconds. This makes a 1.5% gel
  • Once cool enough to touch added 2ul of gel green stain
  • Swirled and poured into gel mould with comb
  • Once solidified, covered with 1X TAE as a running buffer
  • Added 1ul of purple loading dye to each of my QC strip tube samples. I had ~9ul of DNA leftover from QC and ~8ul of RNA
  • Loaded my gel with the DNA first, then skipped a well and then the RNA
  • Ran the gel for 60 minutes at 60 volts 20220301_gel.jpg

Addtional Notes

  • 165, 171, 361, 749, and 787 all had pigmentation in the final RNA elution
  • 923 and 927 and badly degraded
Written on March 1, 2022