SHR overexpression induces the formation of supernumerary cell layers with cortex cell identity in rice

Henry, S.; Dievart, A.; Divol, F.; Pauluzzi, G.; Meynard, D.; Swarup, R.; Wu, S.; Gallagher, K.L.; P�rin, C.

Abstract

The number of root cortex cell layers varies among plants, and many species have several cortical cell layers. We recently demonstrated that the two rice orthologs of the Arabidopsis SHR gene, OsSHR1 and OsSHR2, could complement the A. thaliana shr mutant. Moreover, OsSHR1 and OsSHR2 expression in A. thaliana roots induced the formation of extra root cortical cell layers. In this article, we demonstrate that the overexpression of AtSHR and OsSHR2 in rice roots leads to plants with wide and short roots that contain a high number of extra cortical cell layers. We hypothesize that SHR genes share a conserved function in the control of cortical cell layer division and the number of ground tissue cell layers in land plants.

Citation

Henry, S., Dievart, A., Divol, F., Pauluzzi, G., Meynard, D., Swarup, R., Wu, S., Gallagher, K., & Périn, C. (2017). SHR overexpression induces the formation of supernumerary cell layers with cortex cell identity in rice. Developmental Biology, 425(1), 1-7. https://doi.org/10.1016/j.ydbio.2017.03.001

• Journal Article Type: Article
• Acceptance Date: Mar 1, 2017
• Online Publication Date: Mar 2, 2017
• Publication Date: May 1, 2017
• Deposit Date: Jul 13, 2017
• Publicly Available Date: Jul 13, 2017
• Journal: Developmental Biology
• Print ISSN: 0012-1606
• Electronic ISSN: 0012-1606
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 425
• Issue: 1
• Pages: 1-7
• DOI: https://doi.org/10.1016/j.ydbio.2017.03.001
• Keywords: AtSHR; OsSHR2; Rice; Root development; Cortex; Endodermis; CEID (cortical endodermis initial daughter)
• Public URL: https://nottingham-repository.worktribe.com/output/858617
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0012160616305115
• Additional Information: This article is maintained by: Elsevier; Article Title: SHR overexpression induces the formation of supernumerary cell layers with cortex cell identity in rice; Journal Title: Developmental Biology; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ydbio.2017.03.001; Content Type: article; Copyright: © 2017 Elsevier Inc.
• Contract Date: Jul 13, 2017