Figure 1From: Validation of a set of reference genes to study response to herbicide stress in grassesAgarose gel (3%) electrophoresis showing amplicon size for seven candidate reference genes. These genes all passed the specificity and efficiency assessment steps. 1, TUB; 2, EF1; 3, GAPDH; 4, UBQ; 5, 25S; 6, 26S; 7, 18S. M, DNA ladder (the size of the DNA ladder fragments is given on the left in base pairs).Back to article page