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Genes
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Abiotic Stress in Plants: Molecular Genetics and Genomics—2nd Edition
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Abiotic Stress in Plants: Molecular Genetics and Genomics—2nd Edition

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 1813

Special Issue Editor

Prof. Dr. Fei Gao

E-Mail Website
Guest Editor
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Interests: resource plant molecular biology; plant stress tolerance mechanisms; functional research on plant non-coding RNAs
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Environmental stresses such as drought and low temperatures can have serious adverse effects on plant growth and development, and crop yield. Global warming and climate change will further exacerbate the negative impact of adverse environments on plants, highlighting the necessity and importance of molecular mechanisms for plant abiotic stress response and tolerance. With the increasing maturity of high-throughput DNA sequencing technology and the development of various genetic modification methods, including CRISPR-Cas9, molecular genetics and genomics technologies are increasingly being applied to the field of plant abiotic stress research, improving our understanding of the response mechanisms of various non-model plants to environmental stress.

The purpose of this Special Issue is to analyze the response and adaptation mechanisms of plants to environmental stress by applying multiple types of omics methods, including genomics, transcriptomics, proteomics and metabolomics, individually or in combination. The combination of bioinformatics and experimental validation is encouraged to analyze the abiotic stress response of plants.

Prof. Dr. Fei Gao
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • abiotic stress
  • horticulture
  • gene family
  • transcriptomics
  • omics
  • medicinal plants

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Published Papers (2 papers)

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Research

18 pages, 5689 KiB  
Article
Comparative Transcriptome Analysis Reveals Mechanisms of Differential Salinity Tolerance Between Suaeda glauca and Suaeda salsa
by Qidong Yan, Shang Gao, Xianglun Zhang, Guoping Liu, Peitao Chen, Xuanyi Gao, Li Yuan, Yucheng Tian, Dapeng Li, Xuepeng Zhang and Huan Zhang
Genes 2024, 15(12), 1628; https://doi.org/10.3390/genes15121628 - 19 Dec 2024
Viewed by 767
Abstract
Background: Suaeda glauca and Suaeda salsa have obvious morphological features and strongly tolerate saline–alkali environments. However, the mechanisms that lead to the differences in saline–alkali tolerance between them remain unclear. Methods: In this study, we employed comparative transcriptome analysis to investigate S. glauca [...] Read more.
Background: Suaeda glauca and Suaeda salsa have obvious morphological features and strongly tolerate saline–alkali environments. However, the mechanisms that lead to the differences in saline–alkali tolerance between them remain unclear. Methods: In this study, we employed comparative transcriptome analysis to investigate S. glauca and S. salsa under saline–alkali stress. Results: Our sequencing efforts resulted in the identification of 99,868 unigenes. We obtained 12,021 and 6227 differentially expressed genes (DEGs) from the S. glauca and S. salsa under salt stress compared with plants in the control. Notably, 1189 and 1864 were specifically upregulated DEGs in the roots and leaves of S. salsa under saline–alkali conditions, respectively. These genes were enriched in pathways such as “Plant hormone signal transduction”, “Carbon metabolism” and “Starch and sucrose metabolism”. Further analysis of stress-related pathways and gene expression levels revealed that key genes involved in abscisic acid (ABA) and jasmonic acid (JA) biosynthesis, ABA signal transduction, and their downstream transcription factors were upregulated in the roots of S. salsa under saline–alkali conditions. Additionally, 24 DEGs associated with stress response were identified in the roots and leaves of both species. The expression levels of these pathways and related genes were higher in S. salsa than in S. glauca, suggesting that S. salsa enhances its saline–alkali tolerance by elevating the expression of these genes. Conclusions: This study provides a new research perspective for revealing the differences in saline–alkali tolerance mechanisms between S. glauca and S. salsa, bringing forth important candidate genes for studying their saline–alkali tolerance. Full article
(This article belongs to the Special Issue Abiotic Stress in Plants: Molecular Genetics and Genomics—2nd Edition)
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25 pages, 6587 KiB  
Article
Transcriptome Analysis Reveals the Crucial Role of Phenylalanine Ammonia-Lyase in Low Temperature Response in Ammopiptanthus mongolicus
by Ning Wang, Yilin Zhu, Yijun Zhou, Fei Gao and Suxia Cui
Genes 2024, 15(11), 1465; https://doi.org/10.3390/genes15111465 - 13 Nov 2024
Viewed by 757
Abstract
Background: Ammopiptanthus mongolicus is a rare temperate evergreen shrub with high tolerance to low temperature, and understanding the related gene expression regulatory network can help advance research on the mechanisms of plant tolerance to abiotic stress. Methods: Here, time-course transcriptome analysis was [...] Read more.
Background: Ammopiptanthus mongolicus is a rare temperate evergreen shrub with high tolerance to low temperature, and understanding the related gene expression regulatory network can help advance research on the mechanisms of plant tolerance to abiotic stress. Methods: Here, time-course transcriptome analysis was applied to investigate the gene expression network in A. mongolicus under low temperature stress. Results: A total of 12,606 differentially expressed genes (DEGs) were identified at four time-points during low temperature stress treatment, and multiple pathways, such as plant hormones, secondary metabolism, and cell membranes, were significantly enriched in the DEGs. Trend analysis found that the expression level of genes in cluster 19 continued to upregulate under low temperatures, and the genes in cluster 19 were significantly enriched in plant hormone signaling and secondary metabolic pathways. Based on the transcriptome data, the expression profiles of the genes in abscisic acid, salicylic acid, and flavonoid metabolic pathways were analyzed. It was found that biosynthesis of abscisic acid and flavonoids may play crucial roles in the response to low temperature stress. Furthermore, members of the phenylalanine ammonia-lyase (PAL) family in A. mongolicus were systematically identified and their structures and evolution were characterized. Analysis of cis-acting elements showed that the PAL genes in A. mongolicus were closely related to abiotic stress response. Expression pattern analysis showed that PAL genes responded to various environmental stresses, such as low temperature, supporting their involvement in the low temperature response in A. mongolicus. Conclusions: Our study provides important data for understanding the mechanisms of tolerance to low temperatures in A. mongolicus. Full article
(This article belongs to the Special Issue Abiotic Stress in Plants: Molecular Genetics and Genomics—2nd Edition)
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