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Comprehensive analysis of YABBY gene family in foxtail millet (Setaria italica) and functional characterization of SiDL


Guo, J and Dai, K and Yuan, X and Guo, P and Shi, W and Zhou, Meixue, Comprehensive analysis of YABBY gene family in foxtail millet (Setaria italica) and functional characterization of SiDL, Journal of Integrative Agriculture, 21, (10) pp. 2876-2887. ISSN 2352-3425 (2022) [Refereed Article]

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Copyright Statement

2022 CAAS. Published by Elsevier B.V. This is an open access article under the (CC BY-NC-ND) license.

DOI: doi:10.1016/j.jia.2022.07.052


YABBY genes are plant-specific transcription factors (TFs) that function in plant growth and development. We investigated the functions of the YABBY genes in plants' stress tolerance by analyzing the YABBY genes in foxtail millet (Setaria italica) and studying their functions on plant growth and responses to different stresses. Eight YABBY genes were identified on five chromosomes, which showed strong relationships with YABBY genes in other monocot species. Phylogenetical SiYABs were classified into four clades: FIL/YAB3, YAB2, INO, and CRC. No monocot YABBY member was classified into the YAB5 clade. Four conserved motifs were identified, and motif 1 constituted the YABBY domain, whereas motifs 2 and 3 formed the C2-C2 region. SiYAB genes were highly expressed in reproductive tissues. SiDL, one of the SiYABs, was selected to be overexpressed in Arabidopsis thaliana to check the functions of the YABBY genes. Overexpression of SiDL in A. thaliana caused delayed flowering, leaf curling, and reduced seed size. In addition, SiDL acted as a negative regulator in plant response to salt stress. Our study provides information to assist in studying the YABBY gene functions in S. italica.

Item Details

Item Type:Refereed Article
Keywords:YABBY gene millet
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Agrochemicals and biocides (incl. application)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Wheat
UTAS Author:Zhou, Meixue (Professor Meixue Zhou)
ID Code:154339
Year Published:2022
Deposited By:TIA - Research Institute
Deposited On:2022-11-23
Last Modified:2022-12-14

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