IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v15y2025i13p1396-d1690188.html
   My bibliography  Save this article

Genome-Wide Identification and Evolutionary Analysis of the SnRK2 Gene Family in Nicotiana Species

Author

Listed:
  • Yu Tang

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Yangxin Zhang

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Zhengrong Hu

    (Hunan Tobacco Research Institute, Changsha 410004, China)

  • Xuebing Yan

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Risheng Hu

    (Hunan Tobacco Research Institute, Changsha 410004, China)

  • Jibiao Fan

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

Abstract

Soil salinization threatens agriculture by inducing osmotic stress, ion toxicity, and oxidative damage. SnRK2 genes are involved in plant stress responses, but their roles in salt stress response regulation of tobacco remain unclear. Through genome-wide analysis, we identified 54 SnRK2 genes across four Nicotiana species ( N. tabacum , N. benthamiana , N. sylvestris , and N. tomentosiformis ). Phylogenetic reconstruction clustered these genes into five divergent groups, revealing lineage-specific expansion in diploid progenitors (N. tomentosiformis ) versus polyploidy-driven gene loss in N. tabacum . In silico promoter analysis uncovered regulatory networks involving light, hormones, stress, and developmental signals, with prevalent ABA-responsive elements (ABREs) supporting conserved stress-adaptive roles. Structural analysis highlighted functional diversification through variations in intron–exon architecture and conserved kinase motifs. This study provides a genomic atlas of SnRK2 evolution in Nicotiana , offering a foundation for engineering salt-tolerant crops.

Suggested Citation

  • Yu Tang & Yangxin Zhang & Zhengrong Hu & Xuebing Yan & Risheng Hu & Jibiao Fan, 2025. "Genome-Wide Identification and Evolutionary Analysis of the SnRK2 Gene Family in Nicotiana Species," Agriculture, MDPI, vol. 15(13), pages 1-12, June.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:13:p:1396-:d:1690188
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/15/13/1396/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/15/13/1396/
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    JEL classification:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:15:y:2025:i:13:p:1396-:d:1690188. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.