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Abiotic Stress in Plants: Genetics and Genomics
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Abiotic Stress in Plants: Genetics and Genomics

A Special Issue of Genes (ISSN 2073-4425) belonging to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: 25 April 2027 | Viewed by 148

Editor

Dr. Jing Xu

E-Mail Website
Guest Editor
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
Interests: abiotic stress; plant growth and development; genetic breeding; molecular mechanism; regulatory network

Special Issue Information

Dear Colleagues,

Driven by the escalating climate volatility, abiotic stresses such as drought, salinity, and temperature extremes have emerged as primary limiters of global agroforestry productivity. This thematic Special Issue focuses on the genetics and genomics of abiotic stress responses in plants, highlighting the latest breakthroughs in understanding how these organisms cope with environmental adversity. Recent technological leaps in high-throughput sequencing and multi-omics integration have transformed our ability to investigate these complex traits. We encourage submissions that utilize cutting-edge genomic tools to identify key resistance genes, elucidate molecular regulatory mechanisms, and analyze the population genetics and evolutionary trajectories of stress tolerance. This Special Issue serves as a comprehensive resource for researchers aiming to translate genetic insights into sustainable solutions. Contributions exploring novel aspects of stress physiology and molecular breeding are highly welcomed.

Dr. Jing Xu
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized 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
  • genetics
  • genomics
  • molecular mechanisms
  • plant hormones
  • plant growth and development
  • multi-omics
  • stress tolerance
  • molecular breeding
  • population

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Published Papers (1 paper)

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Research

20 pages, 3095 KB  
Article
Genomic and Transcriptomic Analysis of Nine Resurrection Plant Species: Conserved Regulation Versus Structural Paralog Capacity in Desiccation Tolerance
by Dimitar Kirkovski and Tsanko Gechev
Genes 2026, 17(10), 1202; https://doi.org/10.3390/genes17101202 - 29 Sep 2026
Viewed by 58
Abstract
Background/Objectives: Vegetative desiccation tolerance (VDT) has arisen independently in numerous angiosperm lineages, yet it remains unclear which of its molecular features are genuinely conserved beyond individual lineages. Methods: We compiled and compared available genome assemblies and de novo transcriptomes for the [...] Read more.
Background/Objectives: Vegetative desiccation tolerance (VDT) has arisen independently in numerous angiosperm lineages, yet it remains unclear which of its molecular features are genuinely conserved beyond individual lineages. Methods: We compiled and compared available genome assemblies and de novo transcriptomes for the nine DT species and three desiccation-sensitive (DS) sister species. Conservatively regulated orthogroups were mapped onto eleven literature-established canonical desiccation-tolerance gene families, and species-level paralog representation was examined by principal component analysis and hierarchical clustering. An exact, one-sided Mann–Whitney test compared the number of trend-conforming paralogs per species between DT and DS groups across 32 canonical orthogroups. Results: Copy-number variation aligned more closely with taxonomic affiliation than with tolerance status itself. For instance, the expansion of the ELIP orthogroup (OG0000271) was particular to the Poaceae family instead of DT status. Of the 32 canonical orthogroups, three (dehydrin, a NAC-domain transcription factor, and a LEA hydroxyproline-rich glycoprotein) exhibited a nominally greater count of trend-conforming paralogs in DT compared to DS species using a genuinely exact one-sided Mann–Whitney test (uncorrected p < 0.05). None passed multiple-testing correction, a finding with a clear mathematical rationale: given the exact test’s combinatorial floor and a DS sample comprising only three species. Conclusions: The current analysis provides no statistically robust evidence that conserved desiccation-associated transcriptional responses are accompanied by systematic paralog enrichment in desiccation-tolerant species. We present an integrated transcriptomic-genomic analysis of paralog (“structural”) capacity, reflecting gene copies that follow each orthogroup’s dominant regulatory trend, whether identified from genome or de novo transcriptome data, in conservatively regulated gene families relevant to desiccation tolerance, together with a concrete, functionally diverse set of candidate genes for future targeted validation. Full article
(This article belongs to the Special Issue Abiotic Stress in Plants: Genetics and Genomics)
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