期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 64, 期 12, 页码 3775-3786出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/ert214
关键词
Abscisic acid; auxin; Fragariaananassa; fruit metabolome; fruit ripening; MADS-box gene; non-climacteric fruit; SHATTERPROOF-like gene; strawberry
资金
- University of Padua
- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy
Strawberries (Fragariaananassa) are false fruits the ripening of which follows the non-climacteric pathway. The role played by a C-type MADS-box gene [SHATTERPROOF-like (FaSHP)] in the ripening of strawberries has been studied by transiently modifying gene expression through either over-expression or RNA-interference-mediated down-regulation. The altered expression of the FaSHP gene caused a change in the time taken by the over-expressing and the down- regulated fruits to attain the pink stage, which was slightly shorter and much longer, respectively, compared to controls. In parallel with the modified ripening times, the metabolome components and the expression of ripening-related genes also appeared different in the transiently modified fruits. Differences in the response time of the analysed genes suggest that FaSHP can control the expression of ripening genes either directly or indirectly through other transcription factor-encoding genes. Because fleshy strawberries are false fruits these results indicate that C-type MADS-box genes like SHATTERPROOF may act as modulators of ripening in fleshy fruit-like structures independently of their anatomical origin. Treatment of strawberries with either auxin or abscisic acid had antagonistic impacts on both the expression of FaSHP and the expression of ripening-related genes and metabolome components.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据