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. 2019 Sep 18;10:1150. doi: 10.3389/fpls.2019.01150

Table 1.

Number of independent transgenic lines used for each species and genotyping of transgene-free T2 Plants.

Species Target Number of Primary transformants Number of independent lines (3:1 ratio) Number of selected lines Number of T2/T1 plants Genotype T2/T1 plants
Mut. Hom. Biallelic Heter. wt WT*
Oryza sativa Os04g56950 20 14 14 31 20 (65%) 8 (26%) 2 ( 6%) 1 (3%) 1 (3%)
Solanum lycopersicum Solyc07g64990 8 4 4 29 2 (7%) 0 3 (10%) 24 (83%) 6 (21%)
Solyc12g14500 11 (38%) 12 (41%) 0 6 (21%)
Arabidopsis thaliana At5g55250-1 15 12 4 214 0 0 3 (1.4%) 211 (98.6%) 112 (52%)
At5g55250-2 9 (4.2%) 5 (2.3%) 14 (6.5%) 186 (86.9%)
At5g55250-3 42 (19.6%) 2 (0.9%) 43 (20.1%) 127 (59.3%)

Each genomic region was PCR amplified and sequencing to determine genotype of each genomic target and classify in four groups: both chromosomes mutated with the same mutation (Mut. Hom.); both chromosomes mutated but with different mutations (biallelic), only one chromosome with mutation (Heter.), and no detected mutation (wt). *The last column indicates de number of plants with wild-type sequence in all CRISPR targets.