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Table 1 PCR conditions

From: Development of genomic SSR markers for fingerprinting lettuce (Lactuca sativaL.) cultivars and mapping genes

PCR purpose

PCR conditions (initial denaturation, number of cycles, denaturation, annealing, elongation, and a final extension step)

Enrichment for microsatellite-containing fragments

94°C for 2 min, followed by 12 cycles of 94°C for 15 sec, 55°C for 35 sec, 72°C for 90 sec

Recovery of microsatellite-containing fragments

35 cycles of 94°C for 15 sec, 55°C for 35 sec, 72°C for 30 sec, and a final extension at 72°C for 5 min

Preparation of products for cloning

94°C for 2 min, followed by 15 cycles of 94°C for 15 sec, 55°C for 35 sec, 72°C for 30 sec, and a final extension at 72°C for 5-10 min

Confirmation of cloned products

96°C for 2 min, followed by 33 cycles of 94°C for 40 sec, 57°C for 12 sec, 72°C for 30 sec, and a final extension at 72°C for 5 min

Genotyping with SSRs

96°C for 2 min, followed by 33 cycles at 94°C for 35 sec, annealing temperature* for 15 sec, 72°C for 30 sec, and a final extension at 72°C for 5 min

  1. * Annealing temperatures for each SSR are shown in Additional file 1.