Genome-wide analysis of the U-box E3 ligases gene family in potato (Solanum tuberosum L.) and overexpress StPUB25 enhance drought tolerance in transgenic Arabidopsis

© 2023. The Author(s)..

BACKGROUND: Plant U-box (PUB) E3 ubiquitin ligases have vital effects on various biological processes. Therefore, a comprehensive and systematic identification of the members of the U-box gene family in potato will help to understand the evolution and function of U-box E3 ubiquitin ligases in plants.

RESULTS: This work identified altogether 74 PUBs in the potato (StPUBs) and examined their gene structures, chromosomal distributions, and conserved motifs. There were seventy-four StPUB genes on ten chromosomes with diverse densities. As revealed by phylogenetic analysis on PUBs within potato, Arabidopsis, tomato (Solanum lycopersicum), cabbage (Brassica oleracea), rice (Oryza sativa), and corn (Zea mays), were clustered into eight subclasses (C1-C8). According to synteny analysis, there were 40 orthologous StPUB genes to Arabidopsis, 58 to tomato, 28 to cabbage, 7 to rice, and 8 to corn. In addition, RNA-seq data downloaded from PGSC were utilized to reveal StPUBs' abiotic stress responses and tissue-specific expression in the doubled-monoploid potato (DM). Inaddition, we performed RNA-seq on the 'Atlantic' (drought-sensitive cultivar, DS) and the 'Qingshu NO.9' (drought-tolerant cultivar, DT) in early flowering, full-blooming, along with flower-falling stages to detect genes that might be involved in response to drought stress. Finally, quantitative real-time PCR (qPCR) was carried out to analyze three candidate genes for their expression levels within 100 mM NaCl- and 10% PEG 6000 (w/v)-treated potato plantlets for a 24-h period. Furthermore, we analyzed the drought tolerance of StPUB25 transgenic plants and found that overexpression of StPUB25 significantly increased peroxidase (POD) activity, reduced ROS (reactive oxygen species) and MDA (malondialdehyde) accumulation compared with wild-type (WT) plants, and enhancing drought tolerance of the transgenic plants.

CONCLUSION: In this study, three candidate genes related to drought tolerance in potato were excavated, and the function of StPUB25 under drought stress was verified. These results should provide valuable information to understand the potato StPUB gene family and investigate the molecular mechanisms of StPUBs regulating potato drought tolerance.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:25

Enthalten in:

BMC genomics - 25(2024), 1 vom: 02. Jan., Seite 10

Sprache:

Englisch

Beteiligte Personen:

Liu, Zhen [VerfasserIn]
Wang, Lei [VerfasserIn]
Li, Yuanming [VerfasserIn]
Zhu, Jinyong [VerfasserIn]
Li, Zhitao [VerfasserIn]
Chen, Limin [VerfasserIn]
Li, Hongyang [VerfasserIn]
Shi, Tianbin [VerfasserIn]
Yao, Panfeng [VerfasserIn]
Bi, Zhenzhen [VerfasserIn]
Sun, Chao [VerfasserIn]
Bai, Jiangping [VerfasserIn]
Zhang, Junlian [VerfasserIn]
Liu, Yuhui [VerfasserIn]

Links:

Volltext

Themen:

Drought stress
EC 2.3.2.27
Expression profiles
Journal Article
Plant Proteins
Potato (Solanum tuberosum L.)
Quantitative real-time PCR analysis
U-box E3 ligases gene family
Ubiquitin-Protein Ligases
Ubiquitins

Anmerkungen:

Date Completed 05.01.2024

Date Revised 06.01.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1186/s12864-023-09890-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366573462