Are pollinators the agents of selection on flower colour and size in irises?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897498" target="_blank" >RIV/60076658:12310/18:43897498 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/18:00497177

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/oik.04501" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/oik.04501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/oik.04501" target="_blank" >10.1111/oik.04501</a>

Result language

angličtina

Original language name

Are pollinators the agents of selection on flower colour and size in irises?

Original language description

Plant-pollinator interactions are believed to play a major role in the evolution of floral traits. Flower colour and flower size are important for attracting pollinators, directly influencing reproduction, and thus expected to be under pollinator-mediated selection. Pollinator-mediated selection is also proposed to play a role in maintaining flower colour polymorphism within populations. However, pigment concentrations, and thus flower colour, are also under selective pressures independent of pollinators. We quantified phenotypic pollinator-mediated selection on flower colour and size in two colour polymorphic Iris species. Using female fitness, we estimated phenotypic selection on flower colour and size, and tested for pollinator-mediated selection by comparing selection gradients between flowers open to natural pollination and supplementary pollinated flowers. In both species, we found evidence for pollen limitation, which set the base for pollinator-mediated selection. In the colour dimorphic Iris lutescens, while pigment concentration and flower size were found to be under selection, this was independent of pollinators. For the polymorphic Iris pumila, pigment concentration is under selective pressure by pollinators, but only for one colour morph. Our results suggest that pollinators are not the main agents of selection on floral traits in these irises, as opposed to the accepted paradigm on floral evolution. This study provides an opposing example to the largely-accepted theory that pollinators are the major agent of selection on floral traits.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

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Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Oikos

ISSN

0030-1299

e-ISSN

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Volume of the periodical

127

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

834-846

UT code for WoS article

000434153600008

EID of the result in the Scopus database

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