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

The result's identifiers

  • Result code in 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>

  • Alternative codes found

    RIV/60077344:_____/18:00486268

  • Result on the web

    <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>

Alternative languages

  • Result language

    angličtina

  • Original language name

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

  • Original language description

    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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10618 - Ecology

Result continuities

  • Project

    <a href="/en/project/GP14-10035P" target="_blank" >GP14-10035P: Species traits and optimal foraging as drivers of the structure of plant-pollinator networks</a><br>

  • Continuities

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

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Plant Biology

  • ISSN

    1435-8603

  • e-ISSN

  • Volume of the periodical

    20

  • Issue of the periodical within the volume

    Supplement 1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    9

  • Pages from-to

    139-147

  • UT code for WoS article

    000419106200013

  • EID of the result in the Scopus database

    2-s2.0-85028459542