Work

Response of young rice panicles to salt stress: insights based on phenotype and transcriptome analysis

Year: 2024

Type: article

Abstract: Saline-alkali soils limit rice growth and production. With an increasing global population, enhancing rice salt tolerance is crucial for improving yields in these areas. This study investigated the developmental characteristics of young panicles and pollen fertility in two rice varieties, 58M and 58L, under salt stress. Results showed that 58M had more substantial salt tolerance during panicle development. RNA sequencing of 18 samples from both varieties under high salt stress (0 h, 6 h, and 24 h) identified 469 common differentially expressed genes (DEGs) and 2,308 DEGs between the varieties. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment highlighted significant pathways such as phenylpropanoid biosynthesis, protein processing, and flavonoid biosynthesis. Six gene co-expression modules related to salt tolerance were identified, with six candidate genes ( LOC_Os05g38530 , LOC_Os04g07920 , LOC_Os12g02105 , LOC_Os01g06580 , LOC_Os06g49250 , and LOC_Os06g48300 ) potentially linked to salt tolerance. These findings provide insights into rice salt tolerance mechanisms and offer new genetic resources for breeding salt-tolerant rice.

Source: Frontiers in Plant Science

DOI: 10.3389/fpls.2024.1451469

Authors: Fanrui Duan, Fugui Wu, Zhen Li, Kai Zhang, Qilin Ma

Institution: Hainan University

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,295