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Updated: Jul 17, 2025

Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques
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Two floral forms in the same species-distyly.

Lu Zhang1, Ping Li2, Xiaoman Zhang3

  • 1College of Landscape and Tourism, Hebei Agricultural University, No. 289 Lingyusi Street, P. O. Box 28, Baoding, 071000, Hebei, China.

Planta
|September 1, 2023
PubMed
Summary

This review explores distyly in plants, a trait with long and short styles. Research advances in morphology, physiology, and molecular biology are unraveling the mechanisms behind this fascinating floral characteristic.

Keywords:
DistylyMolecular biologyMorphologyPhysiology

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Area of Science:

  • Plant biology
  • Evolutionary botany
  • Genetics

Background:

  • Distyly is a unique form of heterostyly in plants.
  • It is characterized by two distinct style lengths (long and short) within a species.
  • This floral trait has long fascinated researchers due to its evolutionary and genetic implications.

Purpose of the Study:

  • To review current research progress on distyly.
  • To synthesize findings from morphology, physiology, and molecular biology studies.
  • To provide a theoretical foundation for understanding distyly formation mechanisms.

Main Methods:

  • Literature review of studies on distylous plants.
  • Analysis of morphological variations in floral structures.
  • Examination of physiological adaptations related to distyly.
  • Investigation of molecular mechanisms underlying style dimorphism.

Main Results:

  • Significant progress has been made in understanding the genetic and developmental basis of distyly.
  • Morphological and physiological studies have elucidated functional aspects of distylous systems.
  • Molecular biology approaches are beginning to reveal the genes and pathways controlling style length determination.

Conclusions:

  • Distyly research is rapidly advancing, particularly with molecular tools.
  • A comprehensive understanding of distyly requires integrating morphological, physiological, and molecular data.
  • Further research will continue to unravel the evolutionary and genetic mysteries of plant distyly.