20210831 RNA DNA extractions for E5 project

DNA/RNA extractions from E5 project

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


Extraction Date: August 31, 2021

Samples

Tube number Timepoint Species Colony ID Coll date Site
25 January Porites POR-209 20200103 1
57 January Acropora ACR-247 20200103 1
63 January Pocillopora POC-259 20200103 1
347 March Acropora ACR-350 20200304 3
349 March Pocillopora POC-372 20200304 3
353 March Porites POR-353 20200304 3
499 Sept Acropora ACR-241 20200910 Mahana
501 Sept Pocillopora POC-207 20200910 Mahana
509 Sept Porites POR-221 20200910 Mahana
709 November Pocillopora POC-42 20201101 Mahana
713 November Porites POR-69 20201101 Manava
715 November Acropora ACR-178 20201101 Manava

Extraction notes

  • Samples from the second time point had a lot of biomass in relation to the amount to DNA/RNA shield
  • ACR and POC samples: pulled out 300ul of shield
  • POR samples: pulled out 150ul and then added 150ul of new shield. The thought behind this was to try and limit the amount of inhibitor
  • 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
  • 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 1 184.0      
Standard 2 202102.32      
25   nd nd nd
57   17.1 16.7 16.9
63   7.98 7.68 7.83
347   15.2 14.8 15.0
349   12.4 11.9 12.15
353   3.0 2.9 2.95
499   18.7 18.0 18.35
501   12.8 12.9 12.85
509   2.86 2.74 2.8
709   17.3 17.0 17.15
713   2.88 2.86 2.87
715   17.6 17.5 17.55

RNA

Tube number RFU RNA 1 (ng/uL) RNA 2 (ng/uL) Average
Standard 1 396.96      
Standard 2 6998.54      
25   nd nd nd
57   14.8 14.2 14.5
63   23.6 23.8 23.7
347   nd nd nd
349   33.6 33.6 33.6
353   nd nd nd
499   14.6 14.6 14.6
501   22.0 20.6 21.3
509   10.2 10.0 10.1
709   39.0 38.8 38.9
713   23.2 22.2 22.7
715   11.8 11.6 11.7

Tape Station

  • Used to check RNA quality Protocol
  • I did not tape station 25, 347, and 353 because there was no detectable RNA
  • Results Link

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 20210831_gel.jpg

Addtional Notes

  • Stil haven’t figured out why Porites only works about half the time.
Written on August 31, 2021