Overexpression of a novel MADS-box gene SlFYFL delays senescence, fruit ripening and abscission in tomato

被引：85

作者：

Xie, Qiaoli ^{[1
]}

Hu, Zongli ^{[1
]}

Zhu, Zhiguo ^{[1
]}

Dong, Tingting ^{[1
]}

Zhao, Zhiping ^{[1
]}

Cui, Baolu ^{[1
]}

Chen, Guoping ^{[1
]}

机构：

[1] Chongqing Univ, Bioengn Coll, Minist Educ, Key Lab Biorheol Sci & Technol, Chongqing 400044, Peoples R China

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

中国国家自然科学基金;

关键词：

FLOWER ABSCISSION; 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID; ETHYLENE; IDENTIFICATION; TRANSCRIPTION; BIOSYNTHESIS; EXPRESSION; REGULATOR; PROTEIN; ZONE;

D O I：

10.1038/srep04367

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

MADS-domain proteins are important transcription factors involved in many biological processes of plants. In our study, a tomato MADS-box gene, SlFYFL, was isolated. SlFYFL is expressed in all tissues of tomato and significantly higher in mature leave, fruit of different stages, AZ (abscission zone) and sepal. Delayed leaf senescence and fruit ripening, increased storability and longer sepals were observed in 35S:FYFL tomato. The accumulation of carotenoid was reduced, and ethylene content, ethylene biosynthetic and responsive genes were down-regulated in 35S:FYFL fruits. Abscission zone (AZ) did not form normally and abscission zone development related genes were declined in AZs of 35S:FYFL plants. Yeast two-hybrid assay revealed that SlFYFL protein could interact with SlMADS-RIN, SlMADS1 and SlJOINTLESS, respectively. These results suggest that overexpression of SlFYFL regulate fruit ripening and development of AZ via interactions with the ripening and abscission zone-related MADS box proteins.

引用

页数：10

共 60 条

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