Genome‐Wide Identification and Expression Analysis of Pathogenesis‐Related Protein 1 in Sweet Potato and Its Two Relatives
Ziyi Wang, Meiyan Liu, Mingku Zhu, Fei Zhang, Yanfei Ping, Zongyun Li, Xiaowan Gou
TL;DR
This study identifies and analyzes PR1 genes in sweet potato and related species, revealing their roles in immunity, development, and stress response.
Contribution
The study provides the first genome-wide analysis of PR1 genes in sweet potato and two Ipomoea relatives, offering insights for molecular breeding.
Findings
33, 50, and 36 PR1 or PR1-like genes were identified in sweet potato, I. trifida, and I. triloba, respectively.
Phylogenetic analysis grouped the genes into five clusters, indicating evolutionary divergence.
Most sweet potato PR1 genes were downregulated under stress, except IbPR1-5, which was upregulated.
Abstract
Pathogenesis‐related Protein 1 (PR1) is a core component of plant innate immunity and plays crucial roles in plant growth, development, and stress response, especially biological stress. However, limited information is available on the PR1 genes in sweet potato and other Ipomoea species. In this study, 33, 50, and 36 PR1 or PR1‐like genes were identified from sweet potato ( I. batatas ), I. trifida, and I. triloba , respectively. Phylogenetic analysis categorized these genes into five groups, reflecting their evolutionary divergence. Cis‐regulatory elements associated with light, hormone, and stress responses. Tissue‐specific expression profiling of I. trifida and I. triloba revealed high expression levels in the flowers and flower‐buds, indicating potential roles in reproductive developmental processes. Stress response analysis showed that most PR1 genes in sweet potato were…
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Taxonomy
TopicsPlant-Microbe Interactions and Immunity · Plant Pathogenic Bacteria Studies · Plant Gene Expression Analysis