Open Access

ARTICLE

Wheat Lysin-Motif-Containing Proteins Characterization and Gene Expression Patterns under Abiotic and Biotic Stress

Minjie Liu^*, Na Gao, Yaqiong Zhao, Yingpeng Wu, Zongying Yuan

College of Plant Protection, Shanxi Agricultural University, Taiyuan, 030031, China

* Corresponding Author: Minjie Liu. Email:

(This article belongs to the Special Issue: Plant Omics in Challenging Environment)

Phyton-International Journal of Experimental Botany 2022, 91(11), 2367-2382. https://doi.org/10.32604/phyton.2022.021406

Received 12 January 2022; Accepted 11 April 2022; Issue published 12 July 2022

Abstract

Lysin motif (LysM)-containing proteins (LYPs) are important pattern recognition receptors in plants. However, the evolutionary history and characteristics of LYP genes remain largely unclear in wheat. In this study, 62 LYPs were identified at genome wide in wheat. Based on phylogenetic and domain analysis, wheat LYPs were classified into 6 subgroups (group LysMe, LysMn, LYP, LYK, LysMFbox). Syntenic analysis showed the evolution of LYP genes in wheat. RNA-seq data showed that 22 genes were not expressed at any tissue or stress stimulation period. Some LYP and LYK genes were tissue- or stage- specific. The majority of TaLYK5s, TaLYK6s, TaLYP2s and TaLysMns genes were induced under chitin, flg22 and fungal treatment. qRT-PCR analysis showed that 4 genes were upregulated during Puccinia triticina infection with a peak at 18 h post inoculation. Our findings suggested that wheat LYPs may have specific roles in response to fungal infection and provided insights into the function and characteristics of wheat LYP genes.

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