Methods/DNA barcoding: Difference between revisions

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Line 11: Line 11:
#: or
#: or
#* 17.5 ml H₂O + 10g NaOH and adjust to 25 ml
#* 17.5 ml H₂O + 10g NaOH and adjust to 25 ml
# To 25 ml of H₂O add:
# To 25 ml of H₂O add:
#* 62.5 μl of 10M NaOH
#* 62.5 μl of 10M NaOH
Line 21: Line 20:
* 24 ml of H₂O
* 24 ml of H₂O
* 1 ml of 1M trisHCl
* 1 ml of 1M trisHCl
----
# Premix 10M NaOH:
#* 70 ml H₂O + 40g NaOH and adjust to 100 ml
#: or
#* 17.5 ml H₂O + 10g NaOH and adjust to 25 ml
# To 25 ml of H₂O add:
#* 62.5 μl of 10M NaOH
#* 10 μl of 0.5 M disodium EDTA


=== Extraction ===
=== Extraction ===

Revision as of 02:53, 6 May 2026


DNA extraction using HotShot

Mixing the buffers

Alkaline Buffer (= 25 mM NaOH + 0.2 mM disodium EDTA)

  1. Premix 10M NaOH:
    • 70 ml H₂O + 40g NaOH and adjust to 100 ml
    or
    • 17.5 ml H₂O + 10g NaOH and adjust to 25 ml
  2. To 25 ml of H₂O add:
    • 62.5 μl of 10M NaOH
    • 10 μl of 0.5 M disodium EDTA

Neutralizing Buffer (40 mM trisHCl)

Mix the following:

  • 24 ml of H₂O
  • 1 ml of 1M trisHCl

Extraction

  • 10–15 μl of alkaline buffer + specimen
  • Incubate at 65°C for 18 mins + 98°C for 2 mins
  • Add the same amount of neutralizing buffer