Comprehensive transcriptomic profiling identifies key regulatory genes mediating phytohormone signaling pathways during seed germination in Chenopodium quinoa.

ABSTRACT:

Background

Pre-harvest sprouting (PHS) significantly reduces the yield and quality of Chenopodium quinoa (quinoa). A key determinant of PHS resistance is the balance between seed dormancy and germination, a process primarily regulated by phytohormones.

Results

To elucidate the molecular mechanisms underlying hormone-mediated germination regulation, we performed transcriptome sequencing on Jingli 1 quinoa seeds 6 h after treatment with six phytohormones: abscisic acid (ABA), indole-3-acetic acid (IAA), jasmonic acid (JA), gibberellic acid (GA₃), brassinolide (BR), and 6-benzylaminopurine (6-BA). The results showed that ABA, IAA, and JA significantly inhibited germination, with a maximum inhibition rate of 36.73%. In contrast, optimal concentrations of GA₃ (45 µM), BR (20 µM),

SUBMITTER: Yin Y 

PROVIDER: S-EPMC12829031 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature