Genomic analysis reveals chromosome-level architecture and CesA/Csl gene family expansion in Wikstroemia monnula, highlighting mechanisms driving plant fiber development.
We assembled the chromosome-level genome of the Chinese endemic Wikstroemia monnula (1.32 Gb, 18 chromosomes) and identified 61 CesA/Csl genes. These genes are mainly expanded through dispersed duplication and are largely under purifying selection. Collinearity and Ks analyses suggest a recent lineage-specific whole-genome duplication. This high-quality genome offers a valuable resource for studying fiber formation and cell wall biosynthesis.
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