JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development

Long Mao, Dilara Begum, Huey Wen Chuang, Muhammad A. Budiman, Eugene J. Szymkowiak, Erin E. Irish, Rod A Wing

Research output: Contribution to journalArticle

212 Citations (Scopus)

Abstract

Abscission is a universal and dynamic process in plants whereby organs such as leaves, flowers and fruit are shed, both during normal development, and in response to tissue damage and stress. Shedding occurs by separation of cells in anatomically distinct regions of the plant, called abscission zones (AZs). During abscission, the plant hormone ethylene stimulates cells to produce enzymes that degrade the middle lamella between cells in the AZ. The physiology and regulation of abscission at fully developed AZs is well known, but the molecular biology underlying their development is not. Here we report the first isolation of a gene directly involved in the development of a functional plant AZ. Tomato plants with the jointless mutation4 fail to develop AZs on their pedicels and so abscission of flowers or fruit does not occur normally. We identify JOINTLESS as a new MADS-box gene in a distinct phylogenetic clade separate from those functioning in floral organs. We propose that a deletion in JOINTLESS accounts for the failure of activation of pedicel AZ development in jointless tomato plants.

Original languageEnglish (US)
Pages (from-to)910-913
Number of pages4
JournalNature
Volume406
Issue number6798
DOIs
StatePublished - Aug 24 2000
Externally publishedYes

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Lycopersicon esculentum
Genes
Fruit
Plant Growth Regulators
Cell Separation
Molecular Biology
Enzymes

ASJC Scopus subject areas

  • General

Cite this

Mao, L., Begum, D., Chuang, H. W., Budiman, M. A., Szymkowiak, E. J., Irish, E. E., & Wing, R. A. (2000). JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development. Nature, 406(6798), 910-913. https://doi.org/10.1038/35022611

JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development. / Mao, Long; Begum, Dilara; Chuang, Huey Wen; Budiman, Muhammad A.; Szymkowiak, Eugene J.; Irish, Erin E.; Wing, Rod A.

In: Nature, Vol. 406, No. 6798, 24.08.2000, p. 910-913.

Research output: Contribution to journalArticle

Mao, L, Begum, D, Chuang, HW, Budiman, MA, Szymkowiak, EJ, Irish, EE & Wing, RA 2000, 'JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development', Nature, vol. 406, no. 6798, pp. 910-913. https://doi.org/10.1038/35022611
Mao L, Begum D, Chuang HW, Budiman MA, Szymkowiak EJ, Irish EE et al. JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development. Nature. 2000 Aug 24;406(6798):910-913. https://doi.org/10.1038/35022611
Mao, Long ; Begum, Dilara ; Chuang, Huey Wen ; Budiman, Muhammad A. ; Szymkowiak, Eugene J. ; Irish, Erin E. ; Wing, Rod A. / JOINTLESS is a MADS-box gene controlling tomato flower abscission zone development. In: Nature. 2000 ; Vol. 406, No. 6798. pp. 910-913.
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