Niche similarity in diploid-autotetraploid contact zones of Arabidopsis arenosaacross spatial scales
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901389" target="_blank" >RIV/60076658:12310/20:43901389 - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/20:00533715 RIV/00216208:11310/20:10420557
Result on the web
<a href="https://bsapubs.onlinelibrary.wiley.com/doi/10.1002/ajb2.1534" target="_blank" >https://bsapubs.onlinelibrary.wiley.com/doi/10.1002/ajb2.1534</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ajb2.1534" target="_blank" >10.1002/ajb2.1534</a>
Alternative languages
Result language
angličtina
Original language name
Niche similarity in diploid-autotetraploid contact zones of Arabidopsis arenosaacross spatial scales
Original language description
Premise Whole genome duplication is a major evolutionary event, but its role in ecological divergence remains equivocal. When populations of different ploidy (cytotypes) overlap in space, "contact zones" are formed, allowing the study of evolutionary mechanisms contributing toward ploidy divergence. Multiple contact zones per species' range are often described but rarely leveraged as natural replicates. We explored whether the strength of niche differentiation of diploid and autotetraploidArabidopsis arenosavaries over distinct contact zones and if the frequency of triploids decreases from seedling to adult stage. Methods We characterized ploidy composition and habitat preferences in 264 populations across three contact zones using climatic niche modeling. Ecological differences of cytotypes were also assessed using local vegetation surveys at 110 populations within two contact zones, and at the finer scale within five mixed-ploidy sites. This was complemented by flow cytometry of seedlings. Results We found no niche differences between diploid and tetraploid populations within contact zones for either climatic or local environmental variables. Comparisons of cytotypes within mixed-ploidy sites found weak niche differences that were inconsistent in direction. Triploid individuals were virtually absent (0.14%) in the field, and they were at a similarly low frequency (0.2%) in ex situ germinated seedlings. Conclusions This study demonstrates the strength in investigating different spatial scales across several contact zones when addressing ecological niche differentiation between ploidies. The lack of consistent habitat differentiation of ploidies across the scales and locations supports the recently emerging picture that processes other than ecological differentiation may underlie ploidy coexistence in diploid-autopolyploid systems.
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
10611 - Plant sciences, botany
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Journal of Botany
ISSN
0002-9122
e-ISSN
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Volume of the periodical
107
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1375-1388
UT code for WoS article
000572415000001
EID of the result in the Scopus database
2-s2.0-85091385237