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Are long corolla tubes in Pedicularis driven by pollinator selection?
Author(s) -
Huang ShuangQuan,
Wang XiangPing,
Sun ShiGuo
Publication year - 2016
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/jipb.12460
Subject(s) - pollinator , nectar , biology , botany , pollination , pollen
Summary The evolution of long corolla tubes has been hypothesized to be driven by long‐tongued pollinators. Corolla tubes in Pedicularis species can be longer than 10 cm which may function as flower stalks to increase visual attractiveness to pollinators because these species provide no nectar and are pollinated by bumblebees. The corolla tube length was manipulated (shorter or longer) in two Pedicularis species in field to examine whether longer tubes are more attractive to pollinators and produce more seeds than short tubes. Our results did not support the pollinator attraction hypothesis, leaving the evolution of long tubes in Pedicularis remains mysterious.

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