Interaction between the ABRUPTUS/PINOID and APETALA1 genes regulating the inflorescence development in Arabidopsis thaliana

Interaction between the ABRUPTUS/PINOID and APETALA1 genes regulating the inflorescence... Plant morphology was analyzed in the abr and ap1-1 single mutants, the abr ap1-1 double mutant, and abr mutant plants with extopic expression of the AP1 gene under the control of the 35S RNA constitutive promoter of the cauliflower mosaic virus (abr 35S::AP1). The level of AP1 gene expression was examined in wild-type plants and the abr mutant. The ABR gene was found to interact with the AP1 via dominant epistasis when determining the time of a transition to the reproductive developmental stage and the floral meristem identity. The abr mutant displayed a higher level of AP1 transcription and extended regions of its transcription in leaves and internal whorls of the flowers. Based on these findings, the ABR gene was assumed to play an indirect role in restricting the level and spatial range of AP1 transcription. A complementary interaction of the dominant alleles was observed during floral development, implicating both of the genes in the process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Interaction between the ABRUPTUS/PINOID and APETALA1 genes regulating the inflorescence development in Arabidopsis thaliana

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795410030105
Publisher site
See Article on Publisher Site

Abstract

Plant morphology was analyzed in the abr and ap1-1 single mutants, the abr ap1-1 double mutant, and abr mutant plants with extopic expression of the AP1 gene under the control of the 35S RNA constitutive promoter of the cauliflower mosaic virus (abr 35S::AP1). The level of AP1 gene expression was examined in wild-type plants and the abr mutant. The ABR gene was found to interact with the AP1 via dominant epistasis when determining the time of a transition to the reproductive developmental stage and the floral meristem identity. The abr mutant displayed a higher level of AP1 transcription and extended regions of its transcription in leaves and internal whorls of the flowers. Based on these findings, the ABR gene was assumed to play an indirect role in restricting the level and spatial range of AP1 transcription. A complementary interaction of the dominant alleles was observed during floral development, implicating both of the genes in the process.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Mar 23, 2010

References

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