Isogenic lines, except for one, or two, monogenically controlled morphological traits, obtained in tomato,
Lycopersicon esculentum Mill., are listed and briefly described. Twelve spontaneous or induced mutations, involving 10 loci, were obtained in one of 6 varieties respectively. We have pairs of isogenic or near-isogenic lines, formed by the mutant line and its parental variety.
Near-isogenic lines were created by backcrossing; depending on the lines, 3 to 7 backcrosses were carried out. Nineteen loci and 21 alleles (there is a set of 3 alleles at one locus) are involved. Twenty six recurrent backcross parents were used. At the end of the backcrossing program, for each case, we formed trios: one line
/
with the mutant trait (
for mutant), one sister line +/+ obtained from the same backcross program as the mutant line, and the recurrent parent +/+. In some cases, for the same variety and the same mutant allele, we have sets of 2 or 3 mutant lines and the corresponding sister lines +/+. Ninety one trios (3 of them are incomplete) are available. Furthermore, 15 lines were created with one or the other of 5 combinations of 2 mutant alleles.
The material described here is available for scientific research.
Key words
Lycopersicon esculentum
- tomato - near-isogenic lines - morphological traits