![]() ![]() The FRUITFULL MADS-box gene mediates cell differentiation during Arabidopsis fruit development. The MADS box gene family in tomato: temporal expression duringfloral development, conserved secondary structures and homology with homeoticgenes from Antirrhinum and Arabidopsis. Isolation of the tomato AGAMOUS gene TAG1 and analysis of its homeotic role in transgenic plants. Pnueli, L., Hareven, D., Rounsley, S.D., Yanofsky, M. Characterization of two rice MADS box genes that control flowering time. The cDNA sequence of a cauliflower apetala-1/ squamosa homolog. Isolation and molecular characterization of a new vegetativeMADS-box gene from Solanum tuberosum L. MADS domainproteins in plant development. Deficiens, a homeotic gene involved in the controlof flower morphogenesis in Antirrhinum majus: the protein shows homologyto transcription factors. The protein encoded by the Arabidopsis homeotic gene agamous resembles transcription factors. A deep-coveragetomato BAC library and prospects toward development of an STC framework forgenome sequencing. Isolation andcharacterization of a set of overlapping yeast artificial chromosomes encompassing jointless locus. Tomato as a model:I. Genetic and physical mapping of jointless. Classical and molecular geneticsof tomato: highlights and perspectives. Interactionsbetween jointless and wild-type tomato tissues during development ofthe pedicel abscission zone and the inflorescence meristem. The SELF-PRUNING gene of tomato regulates vegetative toreproductive switching of sympodial meristems and is the ortholog of CEN andTFL1. Factor interactions affectingthe phenotypic expression of the jointless character in tomatoes. Ethylene-promoted tomato flower abscission and thepossible involvement of an inhibitor. HAESA, an Arabidopsis leucine-richrepeat receptor kinase, controls floral organ abscission. of California Press, Berkeley, Los Angeles, London, 1982). Last exit:senescence, abscission, and meristem arrest in Arabidopsis. We propose that a deletion in JOINTLESS accounts for the failure of activation of pedicel AZ developmentin jointless tomato plants.īleecker, A. We identify JOINTLESS as a new MADS-box gene in a distinct phylogenetic clade separatefrom those functioning in floral organs. Tomato plants with the jointless mutation 4 fail to develop AZs on their pedicelsand so abscission of flowers or fruit does not occur normally. Here we report the first isolation of a gene directlyinvolved in the development of a functional plant AZ. The physiology and regulation of abscission at fully developed AZsis well known 2, 3, but the molecular biology underlying theirdevelopment is not. ![]() During abscission, the plant hormone ethylene stimulatescells to produce enzymes that degrade the middle lamella between cells inthe AZ. Shedding occursby separation of cells in anatomically distinct regions of the plant, calledabscission zones (AZs). Abscission is a universal and dynamic process in plants whereby organssuch as leaves, flowers and fruit are shed, both during normal development,and in response to tissue damage and stress 1.
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