Niche differences may explain the geographic distribution of cytotypes in Erysimum mediohispanicum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897460" target="_blank" >RIV/60076658:12310/18:43897460 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/18:00486268

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.12605" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.12605</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/plb.12605" target="_blank" >10.1111/plb.12605</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Niche differences may explain the geographic distribution of cytotypes in Erysimum mediohispanicum

Popis výsledku v původním jazyce

Polyploidisation has played an important role in plant diversification, and variation in ploidy level may be found not only between species of the same genus, but also within a single species. Although establishing the adaptive significance of polyploidy to explain the geographic distribution of cytotypes is challenging, the occurrence of different cytotypes in different ecological niches may suggest an adaptive role of genome duplication. We studied the adaptive significance of the geographic distribution of cytotypes across the entire distribution range of the endemic Erysimum mediohispanicum (Brassicaceae). For that, we have used climate variables, population elevation and soil properties to model ecological niches for the different cytotypes. In addition, we analysed the effect that ploidy level has on the floral phenotype. We found a clear geographic pattern in the distribution of cytotypes, with diploid individuals occurring in the southernmost part of the distribution range, while tetraploids were found in the northern area. A contact (mosaic) zone between both cytotypes was identified, but diploids and tetraploids occur in sympatry in only one population (although in a highly unbalanced proportion). Gene flow between different cytotypes seems to be negligible, as evident from an almost complete absence of triploids and other minority cytotypes. Niches occupied by both cytotypes showed subtle, but significant differences, even in the contact zone. Precipitation was higher in regions occupied by tetraploid individuals, which present wider corolla tubes and thinner but taller stalks than diploids. Our findings highlight the potential role of polyploidy in the ecological adaptation of E.mediohispanicum to both abiotic factors and biotic interactions.

Název v anglickém jazyce

Niche differences may explain the geographic distribution of cytotypes in Erysimum mediohispanicum

Popis výsledku anglicky

Polyploidisation has played an important role in plant diversification, and variation in ploidy level may be found not only between species of the same genus, but also within a single species. Although establishing the adaptive significance of polyploidy to explain the geographic distribution of cytotypes is challenging, the occurrence of different cytotypes in different ecological niches may suggest an adaptive role of genome duplication. We studied the adaptive significance of the geographic distribution of cytotypes across the entire distribution range of the endemic Erysimum mediohispanicum (Brassicaceae). For that, we have used climate variables, population elevation and soil properties to model ecological niches for the different cytotypes. In addition, we analysed the effect that ploidy level has on the floral phenotype. We found a clear geographic pattern in the distribution of cytotypes, with diploid individuals occurring in the southernmost part of the distribution range, while tetraploids were found in the northern area. A contact (mosaic) zone between both cytotypes was identified, but diploids and tetraploids occur in sympatry in only one population (although in a highly unbalanced proportion). Gene flow between different cytotypes seems to be negligible, as evident from an almost complete absence of triploids and other minority cytotypes. Niches occupied by both cytotypes showed subtle, but significant differences, even in the contact zone. Precipitation was higher in regions occupied by tetraploid individuals, which present wider corolla tubes and thinner but taller stalks than diploids. Our findings highlight the potential role of polyploidy in the ecological adaptation of E.mediohispanicum to both abiotic factors and biotic interactions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GP14-10035P" target="_blank" >GP14-10035P: Vlastnosti druhů a optimal foraging jako faktory určující strukturu sítí rostlin a opylovačů</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Plant Biology

ISSN

1435-8603

e-ISSN

—

Svazek periodika

20

Číslo periodika v rámci svazku

Supplement 1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

139-147

Kód UT WoS článku

000419106200013

EID výsledku v databázi Scopus

2-s2.0-85028459542