Uniform ripening Encodes a Golden 2-like Transcription Factor Regulating Tomato Fruit Chloroplast Development

  title={Uniform ripening Encodes a Golden 2-like Transcription Factor Regulating Tomato Fruit Chloroplast Development},
  author={Ann L.T. Powell and Cuong V. Nguyen and Theresa A. Hill and KaLai Lam Cheng and Rosa Figueroa-Balderas and Hakan Aktaş and Hamid Ashrafi and Clara Pons and Rafael Fern{\'a}ndez-Mu{\~n}oz and Ariel R. Vicente and Javier Lopez-Baltazar and Cornelius S. Barry and Yongsheng Liu and Roger T. Chetelat and Antonio Granell and Allen Van Deynze and James J. Giovannoni and Alan B. Bennett},
  pages={1711 - 1715}
Pretty or Sweet The grocery-store tomato that looks beautiful but tastes like tart cardboard arises from selection processes favoring phenotypes that make commercial production more reliable. Significant in that selection process was a mutation that reduced the mottled color variations of unripe green tomatoes, leaving them a uniform, pale, green. Powell et al. (p. 1711) analyzed the molecular biology of the mutation. The uniform ripening mutation turns out to disable a transcription factor… 

Tomato GOLDEN2-LIKE Transcription Factors Reveal Molecular Gradients That Function during Fruit Development and Ripening[W][OPEN]

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It is shown that the genetic background, sequence variation and expression pattern confer a complex and multi-level regulation of CaGLK2 and fruit color in Capsicum, which can be utilized to breed green pepper varieties with improved nutritional values and taste.

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Green STRIPE locus demonstrates naturally occurring methylation of TAGL1 has diverse effects on plastid development in fruit and its impact on chloroplast development and fruit coloration.

Heterologous expression of kiwifruit (Actinidia chinensis) GOLDEN2-LIKE homolog elevates chloroplast level and nutritional quality in tomato (Solanum lycopersicum)

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SlARF4, an Auxin Response Factor Involved in the Control of Sugar Metabolism during Tomato Fruit Development1[C][W]

The involvement of ARFs in the control of sugar content, an essential feature of fruit quality, is uncovered and insight is provided into the link between auxin signaling, chloroplastic activity, and sugar metabolism in developing fruit.

SlBL4 regulates chlorophyll accumulation, chloroplast development and cell wall metabolism in tomato fruit.

This study indicated that SlBL4 was involved in the chlorophyll accumulation, chloroplast development, cell wall metabolism and carotenoids accumulation during tomato fruit ripening, revealing novel evidence for the transcriptional regulation mechanism of BELL mediated fruit growth and ripening.

Regulation of fleshy fruit ripening: from transcription factors to epigenetic modifications

Abstract Fleshy fruits undergo a complex ripening process, developing organoleptic fruit traits that attract herbivores and maximize seed dispersal. Ripening is the terminal stage of fruit



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It is demonstrated that TAGL1 plays an important role in regulating both fleshy fruit expansion and the ripening process that together are necessary to promote seed dispersal of fleshy Fruit.

Specialization of the Golden2-like regulatory pathway during land plant evolution.

This work provides an example of unidirectional complementation between the two species and infers specialization of the GLK pathway during land plant evolution.

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Ripening-Regulated Susceptibility of Tomato Fruit to Botrytis cinerea Requires NOR But Not RIN or Ethylene1[W][OA]

It is shown that the susceptibility of ripe fruit is dependent on NOR but not on RIN and only partially on ethylene perception, leading to the conclusion that not all of the pathways and events that constitute ripening render fruit susceptible.

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Ectopic Overexpression of The Transcription Factor OsGLK1 Induces Chloroplast Development in Non-Green Rice Cells

The results strongly suggest that OsGLK1 regulates chloroplast development under the control of light and phytohormones, and that it is a key regulator of chloroplasts development.

GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis[W][OA]

It is shown that glk1 glk2 double mutants of Arabidopsis thaliana accumulate abnormal levels of chlorophyll precursors and that constitutive GLK gene expression leads to increased accumulation of transcripts for antenna proteins and chlorophyLL biosynthetic enzymes.

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A quantitative real-time PCR platform that allows accurate quantification of the expression level of approximately 1000 tomato transcription factors is described, and the transcriptional and metabolic shifts that occur in parallel during these processes are discussed in terms of both programmed fruit ripening and development.

High soluble-solids content in large-fruited tomato lines derived from a wild green-fruited species

An attempt was made to combine the high soluble-solids content of ripe fruits of the small, green-fruited Lycopersicon minutum with the horticulturally desirable characteristics of a standard L. esculentum cultivar, and appropriate genetic tests proved the existence of the r and y fruit pigmentation genes or similar alleles at the same loci in the minutsum parent.