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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Light and ripening-regulated BBX protein-encoding genes in Solanum lycopersicum

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Lira, Bruno Silvestre [1] ; Oliveira, Maria Jose [1] ; Shiose, Lumi [1] ; Ay Wu, Raquel Tsu [1] ; Rosado, Daniele [1, 2] ; Duarte Lupi, Alessandra Cavalcanti [1] ; Freschi, Luciano [1] ; Rossi, Magdalena [1]
Total Authors: 8
[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo - Brazil
[2] Cold Spring Harbor Lab, 1 Bungtown Rd, Cold Spring Harbor, NY 11724 - USA
Total Affiliations: 2
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 10, n. 1 NOV 6 2020.
Web of Science Citations: 0

Light controls several aspects of plant development through a complex signalling cascade. Several B-box domain containing proteins (BBX) were identified as regulators of Arabidopsis thaliana seedling photomorphogenesis. However, the knowledge about the role of this protein family in other physiological processes and species remains scarce. To fill this gap, here BBX protein encoding genes in tomato genome were characterised. The robust phylogeny obtained revealed how the domain diversity in this protein family evolved in Viridiplantae and allowed the precise identification of 31 tomato SlBBX proteins. The mRNA profiling in different organs revealed that SlBBX genes are regulated by light and their transcripts accumulation is directly affected by the chloroplast maturation status in both vegetative and fruit tissues. As tomato fruits develops, three SlBBXs were found to be upregulated in the early stages, controlled by the proper chloroplast differentiation and by the PHYTOCHROME (PHY)-dependent light perception. Upon ripening, other three SlBBXs were transcriptionally induced by RIPENING INHIBITOR master transcriptional factor, as well as by PHY-mediated signalling and proper plastid biogenesis. Altogether, the results obtained revealed a conserved role of SlBBX gene family in the light signalling cascade and identified putative members affecting tomato fruit development and ripening. (AU)

FAPESP's process: 17/14953-0 - Tocopherol metabolism engineering and its effects on tomato leaves and fruits
Grantee:Bruno Silvestre Lira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/14658-3 - Functional characterization of PIF proteins (Phytochrome-Interacting Factors) in tomato, Solanum lycopersicum
Grantee:Daniele Silva Pereira Rosado
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 16/01128-9 - Light and hormonal regulation of nutritional quality in Solanum lycopersicum
Grantee:Maria Magdalena Rossi
Support type: Research Projects - Thematic Grants