What question did this study set out to answer?

To clone and characterize the quantitative trait locus controlling the morphological transition from round to pear-shaped tomato fruit.

September 19, 2002Proceedings of the National Academy of Sciences

A new class of regulatory genes underlying the cause of pear-shaped tomato fruit

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Authors

JLJiping LiuRobert W. Holley Center for Agriculture & Health JEJoyce Van EckCornell University CBCong BinHebei Medical University

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Implication

Genetic analysis reveals that a premature stop codon in OVATE causes pear-shaped fruit in tomato, indicating a novel class of negative growth regulators.

Key Points

To clone and characterize the quantitative trait locus controlling the morphological transition from round to pear-shaped tomato fruit.
Cloned the quantitative trait locus ovate from tomato and characterized its protein domains across tomato, Arabidopsis, and rice.
Profiled OVATE gene expression during early floral and fruit developmental stages.
Generated transgenic tomato lines with ectopic expression of OVATE to evaluate phenotypic effects on plant organs.
OVATE encodes a hydrophilic protein featuring a bipartite nuclear localization signal, Von Willebrand factor type C domains, and a conserved 70-amino-acid C-terminal domain.
A single nonsense mutation generating a premature stop codon causes the transition from round to pear-shaped fruit.
Ectopic transgenic expression of OVATE unevenly reduces the size of leaflets and floral organs, indicating its function as a negative developmental regulator.

Cite This Study

Liu et al. (2002) studied this question.

synapsesocial.com/papers/69d80cf4ba18484428d184e4 https://doi.org/10.1073/pnas.162485999

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Implication

Genetic analysis reveals that a premature stop codon in OVATE causes pear-shaped fruit in tomato, indicating a novel class of negative growth regulators.

A new class of regulatory genes underlying the cause of pear-shaped tomato fruit

Discussion

Member takes

Implication

Key Points

Cite This Study

A new class of regulatory genes underlying the cause of pear-shaped tomato fruit

Discussion

Member takes

Implication

Key Points

Cite This Study

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