20220217 RNA DNA extractions from E5 project

DNA/RNA extractions from E5 project

Re-Extractions from Porites from three of the timepoints


Extraction Date: February 17, 2022

Samples

Tube number Timepoint Species Colony ID Coll date Site
13 January Porites POR-245 20200103 2
15 January Porites POR-251 20200103 2
125 January Porites POR-355 20200106 3
215 January Porites POR-83 20200110 1
243 January Porites POR-81 20200110 1
601 Sept Porites POR-362 20200909 3
629 Sept Porites POR-349 20200908 3
745 November Porites POR-75 20201101 1
795 November Porites POR-354 20201031 3
901 November Porites POR-253 20201030 2
923 November Porites POR-240 20201030 2
927 November Porites POR-253 20201030 2

20220217_samples.jpg

Extraction notes

  • I looked at each sample, for those samples that were darker (745) I took 100ul of sample and added it to 200ul of new shield
  • For samples that were lighter in pigment, (the rest) 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 2 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 1 202.27      
Standard 2 23169.02      
13   nd nd nd
15   2.12 2.02 2.07
125   nd nd nd
215   nd nd nd
243   nd nd nd
601   nd nd nd
629   2.22 2.18 2.20
745   3.88 3.72 3.80
795   2.38 2.34 2.36
901   35.0 34.6 34.8
923   28.2 28.2 28.2
927   19.6 19.3 19.45

RNA

Tube number RFU RNA 1 (ng/uL) RNA 2 (ng/uL) Average
Standard 1 417.33      
Standard 2 10724.70      
13   11.8 12.0 11.9
15   nd nd nd
125   14.6 15.0 14.8
215   nd nd nd
243   11.2 11.8 11.5
601   12.0 12.4 12.2
629   16.6 16.6 16.6
745   16.2 16.4 16.3
795   16.8 16.2 16.6
901   13.8 14.4 14.1
923   15.0 15.2 15.1
927   11.0 10.0 10.5

Tape Station

  • Not run

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 20220217_gel.jpg

Addtional Notes

  • 125, 745, and 795 were pigmented in final RNA elution
  • I don’t trust the qubit readings of 901, 923, and 927. There are no bands in the gel
Written on February 17, 2022