Gene TAENIATA Is a Novel Negative Regulator of the Arabidopsis thaliana Homeobox Genes KNAT1, KNAT2, KNAT6, and STM

Mutant Arabidopsis thaliana taeniata (tae) plants are characterized by an altered morphology of leaves and the inflorescence. At the beginning of flowering, the inflorescence produces fertile flowers morphologically intermediate between a shoot and a flower. The recessive mutation tae also causes th...

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Published inRussian journal of genetics Vol. 41; no. 8; pp. 871 - 876
Main Authors Lebedeva, O. V., Ezhova, T. A., Melzer, S.
Format Journal Article
LanguageEnglish
Published 01.08.2005
Subjects
Arabidopsis thaliana
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Summary:Mutant Arabidopsis thaliana taeniata (tae) plants are characterized by an altered morphology of leaves and the inflorescence. At the beginning of flowering, the inflorescence produces fertile flowers morphologically intermediate between a shoot and a flower. The recessive mutation tae also causes the formation of ectopic meristems and shoot rosettes on leaves. The expressivity of the mutant characters depend on the temperature and photoperiod. Analysis of the activity of KNOX class I genes in the leaves of the tae mutant has demonstrated the expression of genes KNAT2 and STM and an increase in the expression of genes KNAT1 and KNAT6 compared to wild-type leaves. These data indicate that the TAE gene negatively regulates the KNAT1, KNAT2, KNAT6, and STM genes.
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ISSN:1022-7954
1608-3369
DOI:10.1007/s11177-005-0174-x