Establishment of polyploidy in natural populations of Mimulus guttatus
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F24%3A00598831" target="_blank" >RIV/67985939:_____/24:00598831 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/24:10486394
Result on the web
<a href="https://doi.org/10.1007/s00606-024-01914-1" target="_blank" >https://doi.org/10.1007/s00606-024-01914-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00606-024-01914-1" target="_blank" >10.1007/s00606-024-01914-1</a>
Alternative languages
Result language
angličtina
Original language name
Establishment of polyploidy in natural populations of Mimulus guttatus
Original language description
Whole-genome duplication (WGD) is a leading force of plant sympatric speciation. However, the evolutionary mechanisms promoting the establishment of neopolyploid mutants in nature remain elusive. We studied polyploid establishment in a unique natural system of Mimulus guttatus (Phrymaceae) in Shetland where a recently (< 100 years ago) locally formed autotetraploid still coexists with its diploid progenitor. We cytotyped 679 adults and 766 seedlings and scored relevant reproductive traits in the field and performed controlled crossings to infer differences in plant performance and get a first insight into the crossing barriers between ploidies. Tetraploids grew in 25% of Shetland populations, mostly in mixtures with diploids, but triploids were absent both among seedlings and adults. Seeds of both cytotypes sampled in areas of immediate sympatry exhibited similar, high germination rates (98% on average). In contrast, low (2%) germination of progeny from controlled interploidy crosses demonstrated strong postzygotic isolation. Yet, plants simultaneously pollinated by diploid and tetraploid pollen donors set viable progeny with ploidy levels identical to the seed parent. The abundant presence of fertile tetraploids in the field despite strong postzygotic isolation demonstrates the ability of novel autopolyploids to cope with both intrinsic and extrinsic challenges associated with WGD and to successfully establish in nature.
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
<a href="/en/project/GA20-22783S" target="_blank" >GA20-22783S: Genome duplication as an imperfect barrier in speciation? Evolutionary drivers and consequences of inter-ploidy introgression in natural populations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Systematics and Evolution
ISSN
0378-2697
e-ISSN
1615-6110
Volume of the periodical
310
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
30
UT code for WoS article
001284707300001
EID of the result in the Scopus database
2-s2.0-85200456184