AUTHOR=Mubarok Syariful , Qonit Muhammad Abdilah Hasan , Rahmat Bayu Pradana Nur , Budiarto Rahmat , Suminar Erni , Nuraini Anne 

TITLE=An overview of ethylene insensitive tomato mutants: Advantages and disadvantages for postharvest fruit shelf-life and future perspective

JOURNAL=Frontiers in Plant Science

VOLUME=14

YEAR=2023

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2023.1079052

DOI=10.3389/fpls.2023.1079052

ISSN=1664-462X

ABSTRACT=<p>The presence of ethylene during postharvest handling of tomatoes can be the main problem in maintaining fruit shelf-life by accelerating the ripening process and causing several quality changes in fruit. Several researchers have studied the methods for improving the postharvest life of tomato fruit by controlling ethylene response, such as by mutation. New ethylene receptor mutants have been identified, namely <italic>Sletr1-1</italic>, <italic>Sletr1-2</italic>, <italic>Nr</italic> (<italic>Never ripe</italic>), <italic>Sletr4-1</italic>, and <italic>Sletr5-1</italic>. This review identifies the favorable and undesirable effects of several ethylene receptor mutants. Also, the impact of those mutations on the metabolite alteration of tomatoes and the future perspectives of those ethylene receptor mutants. The review data is taken from the primary data of our experiment related to ethylene receptor mutants and the secondary data from numerous publications in Google Scholar and other sources pertaining to ethylene physiology. This review concluded that mutation in the <italic>SlETR1</italic> gene was more effective than mutation in <italic>NR, SLETR4, and SLETR5</italic> genes in generating a new ethylene mutant. <italic>Sletr1-2</italic> mutant is a potential ethylene receptor mutant for developing new tomato cultivars with prolonged fruit-shelf life without any undesirable effect. Therefore, that has many challenges to using the <italic>Sletr1-2</italic> mutant for future purposes in breeding programs.</p>