Fruit characteristics of F1 NIL Sletr1-2 vary with parental background

Authors

Imas MintarsihFollow
Anne NurainiFollow
Farida FaridaFollow
Erni SuminarFollow

Abstract

The Sletr1-2 allele, which reduces ethylene sensitivity in tomatoes, offers a promising approach to extending fruit shelf life by slowing ripening-related metabolism. However, the trait’s success depends on compatibility with the recipient cultivar’s genetic background. This study evaluated fruit characteristics of F1 near-isogenic line (NIL) hybrids carrying Sletr1-2 in the commercial backgrounds ‘Costoluto’, ‘Oxheart’, and ‘Sart Roloise’. The field trial was carried out between May and August 2024 at the Experimental Station of Universitas Padjadjaran, Sumedang, Indonesia, following a randomized complete block design with eight biological replicates for each treatment. The results revealed that fruit characteristics of F1 NIL Sletr1-2 hybrids depend on parental background: NIL Sletr1-2 x ‘Oxheart’ produced small fruit size, thin pericarp, and poor visual quality, while NIL Sletr1-2 x ‘Costoluto’ and NIL Sletr1-2 x ‘Sart Roloise’ showed more commercial performance, with bigger fruit size. These findings highlight the critical role of parental background in optimizing Sletr1-2-linked traits and inform breeding strategies that balance postharvest resilience with commercial quality.

Recommended Citation

Mintarsih, Imas; Nuraini, Anne; Farida, Farida; and Suminar, Erni (2025) "Fruit characteristics of F1 NIL Sletr1-2 vary with parental background," Jurnal Kultivasi: Vol. 24: No. 3, Article 9.
Available at: https://journal.unpad.ac.id/kultivasi/vol24/iss3/9