Comprehensive analysis of potato (Solanum tuberosum) PYL genes highlights their role in stress responses

Shareef Gul; Hameed Gul; Muhammad Shahzad; Ikram Ullah; Ali Shahzad; Shahid Ullah Khan

doi:10.1071/FP24094

RESEARCH ARTICLE

Next Contents Vol 51(8)

Comprehensive analysis of potato (Solanum tuberosum) PYL genes highlights their role in stress responses

Shareef Gul ^A ^# , Hameed Gul ^A ^# , Muhammad Shahzad ^B , Ikram Ullah ^C , Ali Shahzad

^A ^D ^E ^* and Shahid Ullah Khan

^A ^F ^*

+ Author Affiliations

- Author Affiliations

^A College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China.

^B Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.

^C College of Resources and Environment, Southwest University, Chongqing 400715, China.

^D Sanya Nanfan Research Institute of Hainan University, Sanya, 572025, China.

^E College of Tropical Crops, Hainan University, Haikou, 570288, China.

^F Women Medical and Dental College, Khyber Medical University, Peshawar, KPK 22020, Pakistan.

^* Correspondence to: ali.thathyala3212@outlook.com, shahidbiochem@wmc.edu.pk

^# These authors contributed equally to this paper

Handling Editor: Inzamam Haq

Functional Plant Biology 51, FP24094 https://doi.org/10.1071/FP24094

Submitted: 26 March 2024 Accepted: 29 June 2024 Published: 18 July 2024

Abstract

Abscisic acid (ABA) regulates plant development, seed germination, and stress responses. The PYR1-like (PYL) proteins are essential for ABA signalling. However, the evolution and expression of PYL genes in potato (Solanum tuberosum) remain poorly understood. Here, we analysed and identified 17 PYL genes in the potato genome, which were categorised into three groups based on phylogenetic analysis. These genes are distributed across nine chromosomes with predicted proteins subcellar localisation primarily in the cytoplasm. These StPYLs revealed conserved exon structures and domains among the groups. Promoter region analysis indicated hormone and stress-related elements in all StPYLs. Protein–protein interactions and microRNA networks predicted that the interactions of StPYLs are crucial components of ABA signalling, underlining their pivotal role in stress management and growth regulation in potato. Expression profiling across different tissues and under various stresses revealed their varied expression pattern. Further, we validated the expression pattern of selected StPYLs through reverse transcription quantitative PCR under drought, salt, and Phytophthora infestans stresses. This revealed consistent upregulation of StPYL6 in these stresses, while StPYL11 exhibited significant downregulation over time. Other genes showed downregulation under drought and salt stresses while upregulation under P. infestans. Overall, our results suggested the potential role of PYL genes in abiotic and biotic stresses.

Keywords: ABA signalling, biotic and abiotic stresses, conserved domains, different tissues, expression profile, genome-wide analysis, PYL gene family, Solanum tuberosum L.

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Comprehensive analysis of potato (Solanum tuberosum) PYL genes highlights their role in stress responses

Abstract

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