Processed
GWC01
GWC02
GWC03
GWC04
GWC05
From Grey Whale Beach Site 3
Protocol:
- Labeled 1.5 ml centrifuge tubes with correct sample
- Added 3 sterile 3.2-mm stainless steel beads to each tube
- Added small amount of leaf tissue to each tube, wiped between
- Loaded tubes within a tube rack into the modified reciprocating saw rack and mounted rack into saw
- spun tubes down about 20 seconds on fast speed
- added 434 microliters of preheated grind buffer to each tube
- incubate buffered grandame at 65 degrees celsius for 10 min in water bath, mixing tubes by inversion every 3 mins
- add 130 microliters of 3M pH 4.7 potassium acetate, invert tubes several times and incubate on ice for 5 min
- Spin in a centrifuge at maximum force (about 14000-15000 rams) for 20 min
- Label new 1.5 ml tubes with sample ID
- Add 1.5 volumes binding buffer
- Add 650 microliters of mixture from step 11 to epoch spin column tubes and centrifuge for 10 min at 15,000 rpm in a centrifuge and discard flow-through
- repeat step 12 with the remaining volume from step 11
- wash with 500 ml of 70% EtOH then centrifuge at 15000 rpm until all liquid has passed through. discard flow-through
- repeat 14
- centrifuge columns at 15000 rpm for 5 more mins
- discard tube then place columns in 1.5 ml labeled micro centrifuge tube
- add 100 microliters preheated sterile h20 to each tube. let stand for 5 mins then centrifuge for 2 min at 15000 rpm to elute DNA