Characterization of a calcium/calmodulin-regulated SR/CAMTA gene family during tomato fruit development and ripening.

BMC Plant Biology
Tianbao YangWilliam S Conway

Abstract

Fruit ripening is a complicated development process affected by a variety of external and internal cues. It is well established that calcium treatment delays fruit ripening and senescence. However, the underlying molecular mechanisms remain unclear. Previous studies have shown that calcium/calmodulin-regulated SR/CAMTAs are important for modulation of disease resistance, cold sensitivity and wounding response in vegetative tissues. To study the possible roles of this gene family in fruit development and ripening, we cloned seven SR/CAMTAs, designated as SlSRs, from tomato, a model fruit-bearing crop. All seven genes encode polypeptides with a conserved DNA-binding domain and a calmodulin-binding site. Calmodulin specifically binds to the putative targeting site in a calcium-dependent manner. All SlSRs were highly yet differentially expressed during fruit development and ripening. Most notably, the expression of SlSR2 was scarcely detected at the mature green and breaker stages, two critical stages of fruit development and ripening; and SlSR3L and SlSR4 were expressed exclusively in fruit tissues. During the developmental span from 10 to 50 days post anthesis, the expression profiles of all seven SlSRs were dramatically altered ...Continue Reading

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Citations

Apr 4, 2013·BMC Genomics·Neha PandeySamir V Sawant
Jul 19, 2014·Plant Physiology and Biochemistry : PPB·Wenping XuPei Chen
Mar 15, 2016·Frontiers in Plant Science·Hafizur RahmanXin-Zhong Cai
Oct 10, 2015·Applied Microbiology and Biotechnology·Chenjia ShenHuizhong Wang
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Jan 1, 2014·Horticulture Research·Tianbao YangGary R Bauchan
Jan 16, 2021·International Journal of Molecular Sciences·Hymavathi SalavaFatemeh Maghuly

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Datasets Mentioned

BETA
GU170838
JN558810
JN566049
JN566051
AT2G22300
X55749
JN566047
JN566050

Methods Mentioned

BETA
gel mobility shift
Gel
PCR
electrophoresis

Software Mentioned

Excel
Primer3
Geneious

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