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Determination of Self- and Inter-incompatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses
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Different Flowering Strategies Ensure Reproductive Success in Two Coexisting Self-Incompatible Orchids.

Shi-Mao Wu1,2, Sheng Zhang1, Yi-Hua Wu1,3

  • 1State Key Laboratory of Vegetation Structure, Function and Construction (VegLab), Institute of Biodiversity, School of Ecology and Environmental Science Yunnan University Kunming China.

Ecology and Evolution
|January 5, 2026
PubMed
Summary
This summary is machine-generated.

Two orchid species achieve high reproductive success by using different flowering strategies to attract shared pollinators. One species mass-flowers, while the other has prolonged flowering, both overcoming pollinator limitation.

Keywords:
CoelogynePholidotaflowering strategiesgeitonogamyreproductive successself‐incompatibility

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Botany

Background:

  • Self-incompatible orchids face challenges like pollinator limitation and geitonogamy.
  • Reproductive strategies are crucial for orchid survival and success.

Purpose of the Study:

  • To compare the reproductive strategies of two coexisting, self-incompatible orchids, *Pholidota articulata* and *Coelogyne prolifera*.
  • To understand how contrasting flowering strategies enhance reproductive success in a shared pollinator environment.

Main Methods:

  • A 3-year study analyzing flowering phenology, floral traits, pollinator behavior, and fruit set.
  • Assessing pollinia removal and deposition, and breeding systems under natural and hand-pollination conditions.

Main Results:

  • *P. articulata* used mass-flowering with synchronized anthesis and high nectar rewards.
  • *C. prolifera* employed a steady-state strategy with prolonged single-flower longevity and extended flowering.
  • Both species shared pollinators (*Vespa* species), but *P. articulata* had higher pollinator visit frequency and first-day pollination rates.

Conclusions:

  • Coexisting orchids can achieve high reproductive success through divergent flowering strategies.
  • *P. articulata*'s mass-flowering maximizes pollination efficiency.
  • *C. prolifera*'s prolonged flowering enhances pollination opportunities, demonstrating adaptive diversity.