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

Gene TAENIATA Is a Novel Negative Regulator of the Arabidopsis thaliana Homeobox Genes KNAT1,... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

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

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1007/s11177-005-0174-x
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 14, 2005

References

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