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This study aims to characterize the AP2/ERF transcription factors and their regulatory roles in petal morphology of Lagerstroemia speciosa.

August 11, 2026PlantsOpen Access

Genome-Wide Superfamily Profiling Reveals Key Regulator LsAP2/ERF10 That Governs Petal Morphology in Lagerstroemia speciosa

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Genome-wide profiling identifies a key regulator of petal morphology in Lagerstroemia speciosa, suggesting its role in floral development.

This study aims to characterize the AP2/ERF transcription factors and their regulatory roles in petal morphology of Lagerstroemia speciosa.
Identified 248 AP2/ERF genes in L. speciosa genome using bioinformatics.
Conducted phylogenetic analysis to classify LsAP2/ERF genes into five groups.
Performed heterologous overexpression of LsAP2/ERF10 in tobacco to assess its impact on petal morphology.
Phylogenetic analysis revealed five distinct groups of LsAP2/ERF genes, with the ERF subfamily being the largest.
Heterologous overexpression of LsAP2/ERF10 led to transgenic tobacco with significant changes in petal morphology.
Gene duplication, particularly segmental duplication, was identified as a key factor in the expansion of the LsAP2/ERF family.

Wan et al. (2026) studied this question.

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Genome-wide profiling identifies a key regulator of petal morphology in Lagerstroemia speciosa, suggesting its role in floral development.