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Articles

MANIPULATING THE GIBBERELLIN RESPONSE TO REDUCE PLANT HEIGHT IN CHRYSANTHEMUM MORIFOLIUM

Article number

560_9

Pages

87 – 90

Language

English

Abstract

The aim of this work is to produce a dwarf (pot) chrysanthemum without the need for growth retardant sprays, by heterologous expression of the mutant gai (gibberellic acid insensitive) gene from Arabidopsis thaliana. The wildtype GAI gene encodes a repressor of gibberellin responses which is derepressed by gibberellin itself.
The mutant GAI gene from Arabidopsis, gai, has lost the ability to be derepressed by gibberellin and thus continually suppresses gibberellin responses causing a dwarf phenotype.
Several transgenic chrysanthemum lines have been produced, which are expressing the transgene and exhibit a range of dwarf phenotypes.
Physiological measurements of growth, chlorophyll content and flowering time have demonstrated the extent of the transgene effects.
Evidence so far suggests that gai could be used to produce novel pot Chrysanthemum varieties.
Further genes are under consideration, which may also be used to change morphological characteristics and flowering time in chrysanthemum.

Publication

IV International Symposium on In Vitro Culture and Horticultural Breeding

Authors

L.M. Petty, B. Thomas, S.D. Jackson, N. Harberd

Keywords

Chrysanthemum morifolium, gibberellin, gibberellic acid insensitive, dwarfing

Full text

https://doi.org/10.17660/ActaHortic.2001.560.9

Online Articles (117)

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S. Kauppinen

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M.J. Latkowska | H. Chmiel | K. Molska

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C. D'Onofrio | S. Morini

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P.A. Sansberro | H.Y. Rey | C.V. Luna | L.A. Mroginski

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J. Sedlák | F. Paprstein | A. Bilavcík | J. Zámecník

92. IN VITRO PROPAGATION OF HALOXYLON APHYLLUM (MINKW.) ILJIN

Parveen | E.H. Birnbaum

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A.E. Ramirez | E.H. Birnbaum

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M. Savona | L. Semeria | A. Allavena | S. Carli | P. Profumo

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D. Rzepka-Plevnes | J. Kurek

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M. Erbenová | F. Paprstein | J. Sedlák

97. IN VITRO PROPAGATION AND RECOVERY OF A HABITAT OF HABENARIA RADIATA (ORCHIDACEAE)

T. Shimada | M. Otani | M. Morii

98. ORGANOGENESIS AND ECOLOGICAL DIFFERENTIATION OF CYMBIDIUM SPECIES

K. Shimasaki | J. Tsuneishi | Y. Fukumoto

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Jiu-Sherng Yang

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S. van Bergen | R. van der Meulen | M. Wang

102. THE INFLUENCE OF GENOTYPE AND EXPLANT FOR CALLUS INDUCTION AND PROLIFERATION OF ROSA FLORIBUNDA

S. Kuusiene | M. Kandzezauskaite

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I. Szankowski | A. Lübke | H.-J. Jacobsen

104. SOMATIC EMBRYOGENESIS OF SILVER FIR (Abies alba Mill.) – POLISH PROVENANCES

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105. MICROWAVE STERILIZATION OF TISSUE CULTURE MEDIA

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106. CYCLIC SOMATIC EMBRYOGENESIS AND SCHEME FOR MULTIPLICATION OF QUERCUS ILEX L.

P.V. Mauri | J.A. Manzanera | M.M. Marcote

107. TRUE-TO TYPE PROTOCLONES REGENERATION FROM MESOPHYLL PROTOPLASTS OF “INMIL” CHERRY ROOTSTOCK (Prunus incisa x serrula)

V. Kondakova | PH. Druart

108. THE POTENTIAL FOR GENE FLOW FROM TRANSGENIC CROPS TO RELATED WILD SPECIES: A CASE STUDY IN STRAWBERRY

109. CHROMOSOME NUMBER DEPENDENT GENOME SIZE AND RAPD FINGERPRINTING DIAGNOSTICS FOR GENETIC INTEGRITY OF ENHANCED AXILLARY BRANCHING-DERIVED PLANTS OF TEN FOREST TREE SPECIES

V. Rani | A. Parida | S.N. Raina

110. DEVELOPMENT OF IN VITRO TECHNIQUES FOR ELIMINATION OF VIRUS DISEASES FROM MUSA

111. GROWTH CHARACTERISTICS OF MICROPROPAGATED STRAWBERRIES

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112. EFFECT OF SYSTEMIC FUNGICIDES ON THE DEVELOPMENT OF MICROPROPAGATED APPLE ROOTSTOCKS INOCULATED WITH MYCORRHIZAL FUNGI

G. Lubraco | A. Schubert

113. EFFECT OF IN VITRO MULTIPLICATION ON FIELD PERFORMANCE OF RASPBERRY CULTIVAR ‘NORNA’

L. Petrevica | A. Bite

114. FIELD PERFORMANCE OF IN VITRO PROPAGATED VIRUS-FREE ‘HERMOSA’ PEACH

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M.G. Fari | E.A. Menezes | R. Bud | P.U. Kralovanszky

116. BIOTECHNOLOGY – NEW PERSPECTIVES FOR FUTURE CROP PRODUCTION

M.M. Oelck

117. TEACHING FAST AND RELIABLE PLANT TISSUE CULTURE USING PPM AND BRASSICAS

M.P. Fuller | T. Pizzey