PCR – Oly RAD-seq Prep Scale PCR

Continuing with the RAD-seq library prep. Following the Meyer Lab 2bRAD protocol. After determining the minimum number of PCR cycles to run to generate a visible, 166bp band on a gel yesterday, ran a full library “prep scale” PCR.

**REAGENT** **SINGLE REACTION (μL)** **x11**
Template 40 NA
ILL-HT1 (1μM) 5 55
ILL-BC# (1μM) 5 NA
NanoPure H2O 5 55
dNTPs (1mM) 20 220
ILL-LIB1 (10μM) 2 22
ILL-LIB2 (10μM) 2 22
5x Q5 Reaction Buffer 20 220
Q5 DNA Polymerase 1 11
**TOTAL** **100** **550**

Combined the following for PCR reactions:

  • 55μL PCR master mix

  • 40μL ligation mix

  • 5μL of ILL-BC# (1μM) – The barcode number and the respective sample are listed below.

**SAMPLE** **BARCODE** **SEQUENCE**
Oly RAD 02  1  CGTGAT
Oly RAD 03  2  ACATCG
Oly RAD 04  3  GCCTAA
Oly RAD 06  4  TGGTCA
Oly RAD 07  5  CACTGT
Oly RAD 08  6  ATTGGC
Oly RAD 14  7  GATCTG
Oly RAD 17  8  TCAAGT
Oly RAD 23  9  CTGATC
Oly RAD 30 10 AAGCTA

Cycling was performed on a PTC-200 (MJ Research) with a heated lid:

**STEP** **TEMP (C)** **TIME (s)**
Initial Denaturation * 98 * 30
17 cycles * 98 * 60 * 72 * 5 * 20 * 10

After cycling, added 16μL of 6x loading dye to each sample.

Loaded 10μL of ladder on each of the two gels.

Results:

(https://raw.githubusercontent.com/sr320/LabDocs/master/protocols/Commercial_Protocols/ThermoFisher_OgeneRuler_DNA_Ladder_Mix_F100439.jpg)

(http://eagle.fish.washington.edu/Arabidopsis/20151113_gel_oly_RAD_prep_PCR_01.png)

(http://eagle.fish.washington.edu/Arabidopsis/20151113_gel_oly_RAD_prep_PCR_02.png)

(http://eagle.fish.washington.edu/Arabidopsis/20151113_gel_oly_RAD_prep_PCR_03.png)

(http://eagle.fish.washington.edu/Arabidopsis/20151113_gel_oly_RAD_prep_PCR_04.png)

Things looked fine. Excised the bands from each sample indicated by the green arrow. Before and after gel images show regions excised. Will purify the bands and quantify library yields.