Supplemental information for the manuscript submitted to Horticulture Research (HR-2025-375) Title: Haplotype resolved genome of a citronella provides insights into the evolution of citronelloid biogenesis pathway

Supplementary information for the submitted manuscript to Horticulture ResearchFigure S1. Intra-genomic comparison in the haplotype A subgenome of <i>C. winterianus</i>.Figure S2. Collinearity analysis among the genome of <i>S. bicolor</i>, two subgenomes of <i>C. winterianus</i>, and the four subgenomes of <i>C. distans</i>.Figure S3. Phylogenetic trees of the TPS involved in the terpenoids biosynthetic pathway.Figure S4. Phylogenetic trees of the ADH/GeDH/CAD involved in the terpenoids biosynthetic pathway.Figure S5. Phylogenetic trees of the GER/CIR involved in the terpenoids biosynthetic pathway.Figure S6. Phylogenetic trees of the OPR involved in the terpenoids biosynthetic pathway.Figure S7. Phylogenetic trees of the PAR/CAR involved in the terpenoids biosynthetic pathway.Figure S8. Relative expression levels of candidate genes in root, shoot and leaves of <i>C. winterianus</i> by RT-qPCR.Table S1. The relative contents of metabolites in terpenoids biosynthesis by HS-SPME/GC-MS in <i>C. winterianus.</i>Table S2. Reported genes involved in the citronellal synthesis pathways of other species.Table S3. Expression analysis of citronelloid biogenesis genes in <i>Cymbopogon.</i>Table S4. Co-expression analysis result between citronellol synthesis pathway genes and geraniol contents.Table S5. The list of each cluster genes.Table S6. List of cluster-enriched genes with an adjusted pct.1 &gt; 0.3 in target cluster and pct.2 &lt; 0.1 in other 11 clusters.Table S7. Expression of candidate genes involved in the citronellol biosynthesis pathway of <i>C. winterianus.</i>Table S8. Primers for real-time PCR.Materials and methods<i>C. winterianus</i> genome anotation file (zw.gff)<i>C. distans</i> genome anotation file (yxc.gff)<br>