The ecological performance of tetra-, penta- and hexaploid geophyte Allium oleraceum in reciprocal transplant experiment may explain the occurrence of multiple-cytotype populations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73578780" target="_blank" >RIV/61989592:15310/17:73578780 - isvavai.cz</a>

Výsledek na webu

<a href="https://academic.oup.com/jpe/article/10/3/569/2624163" target="_blank" >https://academic.oup.com/jpe/article/10/3/569/2624163</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jpe/rtw039" target="_blank" >10.1093/jpe/rtw039</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The ecological performance of tetra-, penta- and hexaploid geophyte Allium oleraceum in reciprocal transplant experiment may explain the occurrence of multiple-cytotype populations

Popis výsledku v původním jazyce

Aims Many polyploids are geographically separated from their lower-ploidy progenitors at a variety of spatial scales. Diverse adaptive and non-adaptive mechanisms have been suggested to contribute to these spatial patterns. A long-standing hypothesis holds that polyploids are established and persist due to specialization to different ecological conditions compared to their progenitors. However, experimental approaches testing this hypothesis remain rare. Empirical evidence for niche differences among ploidy levels has been found previously for the European polyploid geophyte Allium oleraceum. Here, we conducted a 5-year reciprocal transplant experiment with tetraploid, pentaploid and hexaploid A. oleraceum to test for adaptation at the ploidy and population levels. Methods In 2006, we sowed 2160 aerial bulbils among six sites (two per cytotype, central and western Moravia, the Czech Republic) and monitored their emergence in 2007, their survival until 2011 and their performance in 2011. Important Findings The emergence of bulbils was high at all target sites, and no evidence for niche differentiation among cytotypes was recorded in the first year. Survival in the following years was relatively high, but significantly better survival for plants of home ploidy than foreign ploidy was recorded. No plant reached the reproductive stage during our experiment. Adopting a strict definition of local adaptation, local plants only rarely performed better than foreign plants at both sites in pairwise comparisons within a cytotype. Together, our results suggest weak niche differentiation among cytotypes and provide limited support for the existence of local adaptation within cytotypes. Thus, all cytotypes are able to establish in habitats typically populated by other cytotypes via aerial bulbil spread, but will likely die out gradually in non-native habitats. This ability may explain the occurrence of some multiple-cytotype populations.

Název v anglickém jazyce

The ecological performance of tetra-, penta- and hexaploid geophyte Allium oleraceum in reciprocal transplant experiment may explain the occurrence of multiple-cytotype populations

Popis výsledku anglicky

Aims Many polyploids are geographically separated from their lower-ploidy progenitors at a variety of spatial scales. Diverse adaptive and non-adaptive mechanisms have been suggested to contribute to these spatial patterns. A long-standing hypothesis holds that polyploids are established and persist due to specialization to different ecological conditions compared to their progenitors. However, experimental approaches testing this hypothesis remain rare. Empirical evidence for niche differences among ploidy levels has been found previously for the European polyploid geophyte Allium oleraceum. Here, we conducted a 5-year reciprocal transplant experiment with tetraploid, pentaploid and hexaploid A. oleraceum to test for adaptation at the ploidy and population levels. Methods In 2006, we sowed 2160 aerial bulbils among six sites (two per cytotype, central and western Moravia, the Czech Republic) and monitored their emergence in 2007, their survival until 2011 and their performance in 2011. Important Findings The emergence of bulbils was high at all target sites, and no evidence for niche differentiation among cytotypes was recorded in the first year. Survival in the following years was relatively high, but significantly better survival for plants of home ploidy than foreign ploidy was recorded. No plant reached the reproductive stage during our experiment. Adopting a strict definition of local adaptation, local plants only rarely performed better than foreign plants at both sites in pairwise comparisons within a cytotype. Together, our results suggest weak niche differentiation among cytotypes and provide limited support for the existence of local adaptation within cytotypes. Thus, all cytotypes are able to establish in habitats typically populated by other cytotypes via aerial bulbil spread, but will likely die out gradually in non-native habitats. This ability may explain the occurrence of some multiple-cytotype populations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Plant Ecology

ISSN

1752-9921

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

569-580

Kód UT WoS článku

000407260100015

EID výsledku v databázi Scopus

—