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RESEARCH ARTICLE
Contents Vol 51(3)

Genome-wide identification, phylogeny and expression analysis of the R2R3-MYB gene family in quinoa (Chenopodium quinoa) under abiotic stress

Pengcheng Ding A B C , Peng Tang A B C , Xiaofen Li A B C , Adeela Haroon D , Saima Nasreen E , Hafeez Noor https://orcid.org/0000-0003-3758-0857 A B C * , Kotb A. Attia https://orcid.org/0000-0002-2992-1765 F , Asmaa M. Abushady G H , Rongzhen Wang A B C , Kaiyuan Cui A B C , Xiangyun Wu I , Min Sun A B C * and Zhiqiang Gao A B C *
+ Author Affiliations
- Author Affiliations

A College of Agriculture, Shanxi Agricultural University, Taigu 030801, China. Email: hafeeznoorbaloch@gmail.com, sunmin@sxau.edu.cn

B Ministerial and Provincial Co-Innovation Centre for Endemic Crops Production with High-quality and Efficiency in Loess Plateau, Taigu 030801, China.

C Shanxi Agricultural University, Shanxi, Taiyuan 030031, China.

D Department of Botany, The Women University Multan, Multan 66000, Pakistan. Email: adeela.6054@wum.edu.pk

E Department of Environmental Sciences, The Women University Multan, Multan 66000, Pakistan. Email: saima.6333@wum.edu.pk

F Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. Email: kattia1.c@ksu.edu.sa

G Biotechnology School, Nile University, 26th July Corridor, Sheikh Zayed City, Giza 12588, Egypt. Email: aabushadyasmaa@agr.asu.edu.eg

H Department of Genetics, Agriculture College, Ain Shams University, Cairo, Egypt.

I Shanxi Jiaqi Agri-Tech Co., Ltd., Taiyuan 030006, China.

* Correspondence to: hafeeznoorbaloch@gmail.com, sunmin@sxau.edu.cn, gaozhiqiang1964@126.com

Handling Editor: Sajid Fiaz

Functional Plant Biology 51, FP23261 https://doi.org/10.1071/FP23261
Submitted: 8 November 2023  Accepted: 14 February 2024  Published: 29 February 2024

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing

Abstract

The MYB transcription factor (TF) are among the largest gene families of plants being responsible for several biological processes. The R2R3-MYB gene family are integral player regulating plant primary and secondary metabolism, growth and development, and responses to hormones and stresses. The phylogenetic analysis combined with gene structure analysis and motif determination resulted in division of R2R3-MYB gene family into 27 subgroups. Evidence generated from synteny analyses indicated that CqR2R3-MYBs gene family is featured by tandem and segmental duplication events. On the basis of RNA-Seq data, the expression patterns of different tissues under salt treatment were investigated resulting CqR2R3-MYB genes high expression both in roots and stem of quinoa (Chenopodium quinoa) plants. More than half of CqR2R3-MYB genes showed expression under salt stress. Based on this result, CqR2R3-MYBs may regulate quinoa plant growth development and resistance to abiotic stresses. These findings provided comprehensive insights on role of CqR2R3-MYBs gene family members in quinoa and candidate MYB gene family members can be further studies on their role for abiotic stress tolerance in crop plants.

Keywords: CqR2R3-MYBs, function prediction, gene expression, marginal soils, nutritious crop, quinoa, stress response.

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