P-18-01 (Tomato advanced line)

Technology Background:

Tomato (yellow) leaf curl disease (TYLCD/ToLCD) is a major biotic constraint in tomato production and can cause 100% yield loss if young tomato plants are infected. ToLCD caused by be gomo viruses and transmitted by whitefly (Bemisiatabaci). Whitefly is polyphagous pest and it is highly difficult to control this pest. 

Technology Details:

Among different available strategies, cultivating ToLCD resistant cultivars is the most effective, economical and environmentally safe strategy to manage the disease. Ty2 and Ty3 resistance genes are well characterized genes and offering good resistance against different species of TOLCV and reliable markers are available for both the genes. With the help of marker assisted selection P18-01was developed with both the genes pyramided and it shows high level of resistance to ToLCD. The fruits of pyramided line P18-01showed high pericarp thickness of 0.6-0.7 cm with an average locule number of 3 per fruit and total soluble solids (TSS) of 4.3 Brix.P18-01hasround fruits with green shoulder. P18-01 can be used in the tomato TOLCV resistance breeding programmes. It can be used as inbred in hybrid development programmes especially for green shoulder market segment and as a source of Ty- 2and Ty-3 in gene pyramiding programmes with other economically useful genes.