ArticlePlant physiology2002
Down-regulation of TM29, a tomato SEPALLATA homolog, causes parthenocarpic fruit development and floral reversion.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.
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105 citing papers in PubMed, 236 citations in OpenAlex.
- Comparative Biology Research on the Reproductive Organs BetweenPlants (Basel, Switzerland) · 2026Article
- Incomplete functional divergence drives MADS-box gene synergy during floral development in tomato.PLoS biology · 2026Article
- Molecular Regulatory Mechanism of Inflorescence, Flower and Fruit Development in Tomato.Plants (Basel, Switzerland) · 2026Review
- A Noncanonical Auxin-Sensing Mechanism Uncovered by Screening the Auxin Response Factor 3 Interacting Proteins in Tomato.International journal of molecular sciences · 2026Article
- 'Bud to fruit'-hormonal interactions governing early fruit development.Journal of experimental botany · 2025Review
- Overexpression ofPlants (Basel, Switzerland) · 2025Article
- Overexpression ofPlants (Basel, Switzerland) · 2025Article
- Comparative Transcriptome Reveals Conserved Gene Expression in Reproductive Organs in Solanaceae.International journal of molecular sciences · 2025Article
- Solanaceae pan-genomes reveal extensive fractionation and functional innovation of duplicated genes.Plant communications · 2025Article
- Review
- Transcriptomic reprogramming and epigenetic regulation underlying pollination-dependent and auxin-induced fruit set in tomato.Frontiers in plant science · 2025Article
- Single nucleotide polymorphisms in SEPALLATA 2 underlie fruit length variation in cucurbits.The Plant cell · 2024Article
- Meta-QTL and Candidate Gene Analyses of Agronomic Salt Tolerance and Related Traits in an RIL Population Derived fromInternational journal of molecular sciences · 2024Article
- A SEPALLATA MADS-Box Transcription Factor, SlMBP21, Functions as a Negative Regulator of Flower Number and Fruit Yields in Tomato.Plants (Basel, Switzerland) · 2024Article
- Two SEPALLATA MADS-Box Genes,International journal of molecular sciences · 2024Article
- New Advances in the Study of Regulation of Tomato Flowering-Related Genes Using Biotechnological Approaches.Plants (Basel, Switzerland) · 2024Review
- The hormone regulatory mechanism underlying parthenocarpic fruit formation in tomato.Frontiers in plant science · 2024Review
- Genetic and molecular mechanisms underlying theFrontiers in plant science · 2024Article
- Parthenocarpy inPlants (Basel, Switzerland) · 2023Review
- Nuclear phylogeny and insights into whole-genome duplications and reproductive development of Solanaceae plants.Plant communications · 2023Article
45 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have characterized the tomato (Lycopersicon esculentum Mill.) MADS box gene TM29 that shared a high amino acid sequence homology to the Arabidopsis SEP1, 2, and 3 (SEPALLATA1, 2, and 3) genes. TM29 showed similar expression profiles to SEP1, with accumulation of mRNA in the primordia of all four whorls of floral organs. In addition, TM29 mRNA was detected in inflorescence and vegetative meristems. To understand TM29 function, we produced transgenic tomato plants in which TM29 expression was down-regulated by either cosuppression or antisense techniques. These transgenic plants produced aberrant flowers with morphogenetic alterations in the organs of the inner three whorls. Petals and stamens were green rather than yellow, suggesting a partial conversion to a sepalloid identity. Stamens and ovaries were infertile, with the later developing into parthenocarpic fruit. Ectopic shoots with partially developed leaves and secondary flowers emerged from the fruit. These shoots resembled the primary transgenic flowers and continued to produce parthenocarpic fruit and additional ectopic shoots. Based on the temporal and spatial expression pattern and transgenic phenotypes, we propose that TM29 functions in floral organ development, fruit development, and maintenance of floral meristem identity in tomato.
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