Potential Use of a Weak Ethylene Receptor Mutant, Sletr1-2, as Breeding Material To Extend Fruit Shelf Life of Tomato

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• 作者：Syariful Mubarok ; Yoshihiro Okabe ; Naoya Fukuda ; Tohru Ariizumi ; Hiroshi Ezura
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2015
• 出版时间：September 16, 2015
• 年：2015
• 卷：63
• 期：36
• 页码：7995-8007
• 全文大小：818K
• ISSN：1520-5118

文摘

Mutations in the ethylene receptor gene (SlETR1), Sletr1-1 and Sletr1-2, are effective in reducing ethylene sensitivity and improving fruit shelf life. In this study the effect of Sletr1-1 and Sletr1-2 mutations was investigated in F1 hybrid lines. These two mutants and control were crossed with four commercial pure-line tomatoes. The Sletr1-1 mutation showed undesirable pleiotropic effects in the F1 hybrid lines. The Sletr1-2 mutation was effective in improving fruit shelf life of F1 hybrid lines for 4鈥? days longer. It was also effective in improving fruit firmness without change in fruit size, ethylene production, respiration rate, and total soluble solids or a great reduction in fruit color, lycopene, and 尾-carotene, although the titratable acidity was increased by Sletr1-2 mutation. These results indicate that the Sletr1-2 mutant allele has the potential to improve fruit shelf life via incorporation in tomato breeding programs.