Total genomic DNA from both parental individuals and the F
1 progeny was extracted as follows: About 100 mg milled leaf tissue was mixed with 500 μl lysis buffer (0.3% sodium dodecyl sulfate, 20 mM Tris-HCl [pH 8.0 at 25°C], 5 mM EDTA, 400 mM NaCl) and 4 μl
RNase A (100 mg/ml; Qiagen Inc., CA, USA), and incubated at 65°C for 10 min. The mixture was then centrifuged (14,000 rpm, 20°C) for 2 min. Buffer AP2 (130 μl; Qiagen Inc.) was added to the cleared lysate and the samples were mixed, incubated on ice for 5 min, and centrifuged for 2 min (14,000 rpm, 20°C). Then, 500 μl
isopropanol (Wako Pure Chemical Industries, Ltd., Osaka, Japan) was added to the supernatant, and the samples were mixed by inversion, incubated for 5 min at room temperature, and centrifuged for 10 min. The DNA pellet was washed twice with 500 μl of
70% ethanol (Wako Pure Chemical Industries, Ltd.). After each wash, the sample was centrifuged for 5 min, and 500 μl of 99.5% ethanol (Wako Pure Chemical Industries, Ltd.) was added to the pellet. After incubation for 5 min at room temperature, the sample was centrifuged for 5 min and resuspended in 100 μl Tris-EDTA buffer.
Yabe S., Hara T., Ueno M., Enoki H., Kimura T., Nishimura S., Yasui Y., Ohsawa R, & Iwata H. (2014). Rapid genotyping with DNA micro-arrays for high-density linkage mapping and QTL mapping in common buckwheat (Fagopyrum esculentum Moench). Breeding Science, 64(4), 291-299.