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A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling.

Publication ,  Journal Article
Sageman-Furnas, K; Nurmi, M; Contag, M; Plötner, B; Alseekh, S; Wiszniewski, A; Fernie, AR; Smith, LM; Laitinen, RAE
Published in: Plant & cell physiology
July 2022

Hybrids between Arabidopsis thaliana accessions are important in revealing the consequences of epistatic interactions in plants. F1 hybrids between the A. thaliana accessions displaying either defense or developmental phenotypes have been revealing the roles of the underlying epistatic genes. The interaction of two naturally occurring alleles of the OUTGROWTH-ASSOCIATED KINASE (OAK) gene in Sha and Lag2-2, previously shown to cause a similar phenotype in a different allelic combination in A. thaliana, was required for the hybrid phenotype. Outgrowth formation in the hybrids was associated with reduced levels of salicylic acid, jasmonic acid and abscisic acid in petioles and the application of these hormones mitigated the formation of the outgrowths. Moreover, different abiotic stresses were found to mitigate the outgrowth phenotype. The involvement of stress and hormone signaling in outgrowth formation was supported by a global transcriptome analysis, which additionally revealed that TCP1, a transcription factor known to regulate leaf growth and symmetry, was downregulated in the outgrowth tissue. These results demonstrate that a combination of natural alleles of OAK regulates growth and development through the integration of hormone and stress signals and highlight the importance of natural variation as a resource to discover the function of gene variants that are not present in the most studied accessions of A. thaliana.

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Published In

Plant & cell physiology

DOI

EISSN

1471-9053

ISSN

0032-0781

Publication Date

July 2022

Volume

63

Issue

7

Start / End Page

944 / 954

Related Subject Headings

  • Salicylic Acid
  • Plant Biology & Botany
  • Hormones
  • Gene Expression Regulation, Plant
  • Arabidopsis Proteins
  • Arabidopsis
  • Abscisic Acid
  • 3108 Plant biology
  • 0607 Plant Biology
  • 0601 Biochemistry and Cell Biology
 

Citation

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Sageman-Furnas, K., Nurmi, M., Contag, M., Plötner, B., Alseekh, S., Wiszniewski, A., … Laitinen, R. A. E. (2022). A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling. Plant & Cell Physiology, 63(7), 944–954. https://doi.org/10.1093/pcp/pcac056
Sageman-Furnas, Katelyn, Markus Nurmi, Meike Contag, Björn Plötner, Saleh Alseekh, Andrew Wiszniewski, Alisdair R. Fernie, Lisa M. Smith, and Roosa A. E. Laitinen. “A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling.Plant & Cell Physiology 63, no. 7 (July 2022): 944–54. https://doi.org/10.1093/pcp/pcac056.
Sageman-Furnas K, Nurmi M, Contag M, Plötner B, Alseekh S, Wiszniewski A, et al. A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling. Plant & cell physiology. 2022 Jul;63(7):944–54.
Sageman-Furnas, Katelyn, et al. “A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling.Plant & Cell Physiology, vol. 63, no. 7, July 2022, pp. 944–54. Epmc, doi:10.1093/pcp/pcac056.
Sageman-Furnas K, Nurmi M, Contag M, Plötner B, Alseekh S, Wiszniewski A, Fernie AR, Smith LM, Laitinen RAE. A. thaliana Hybrids Develop Growth Abnormalities through Integration of Stress, Hormone and Growth Signaling. Plant & cell physiology. 2022 Jul;63(7):944–954.
Journal cover image

Published In

Plant & cell physiology

DOI

EISSN

1471-9053

ISSN

0032-0781

Publication Date

July 2022

Volume

63

Issue

7

Start / End Page

944 / 954

Related Subject Headings

  • Salicylic Acid
  • Plant Biology & Botany
  • Hormones
  • Gene Expression Regulation, Plant
  • Arabidopsis Proteins
  • Arabidopsis
  • Abscisic Acid
  • 3108 Plant biology
  • 0607 Plant Biology
  • 0601 Biochemistry and Cell Biology