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Table 1 Negative selection determination with 5-fluorouracil

From: The codA gene as a negative selection marker in Citrus

Plant

5-FU Selection (mg l−1)

0

10

20

40

80

100

Regeneration (%)1

Shoots/explant2

Regeneration (%)1

Shoots/explant2

Regeneration (%)1

Shoots/explant2

Regeneration (%)1

Shoots/explant2

Regeneration (%)1

Shoots/explant2

Regeneration (%)1

Shoots/explant2

NT

71 ± 9.64

2.5 ± 0.6

67 ± 10.26

1.8 ± 0.79

8 ± 3.60

0.3 ± 0.2

2.6 ± 2.51

0.07 ± 0.06

0

0

0

0

  1. Regeneration frequency and number of shoots per internode explant of non-transgenic (NT) citrus in regeneration medium supplemented with various concentrations of the toxic metabolite 5-fluorouracil (5-FU). Regeneration frequency and number of shoots per explants were taken after 70 days.
  2. Data are the means of three independent experiments. Values are regeneration % (1) and number of shoots per explants (2) ±standard deviation between repetitions.