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
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
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
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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