Inbreeding depression and heterosis vary in space and time in the serpentinophyte perennial Minuartia smejkalii
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F21%3AA2202DZX" target="_blank" >RIV/61988987:17310/21:A2202DZX - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/21:00547549 RIV/00216208:11310/21:10436612
Result on the web
<a href="https://www.preslia.cz/P212Stojanova.pdf" target="_blank" >https://www.preslia.cz/P212Stojanova.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Inbreeding depression and heterosis vary in space and time in the serpentinophyte perennial Minuartia smejkalii
Original language description
Heterosis has been used occasionally in attempts to save endangered populations of plants. However, there is a lack of knowledge on how inbreeding, heterosis and outbreeding depression jointly influence fitness of species with small, fragmented populations. Understanding the joint action of these processes is further complicated by variation among populations and environments in time and the stochastic effects of genetic drift. We assayed offspring of hand pollinated plants from three natural populations of Minuartia smejkalii, an endemic serpentinophyte perennial, in two soil treatments and three competitive environments for two consecutive years. We detected no early-acting inbreeding or outbreeding depression in a greenhouse. Late-acting inbreeding depression in the common garden was low in small populations and could be counteracted by heterosis. Both inbreeding depression and heterosis varied among traits, between years and with environmental stress. Notably inbreeding depression declined as environmental stress increased and phenotypic variation in the population decreased. Moreover, heterosis increased with environmental stress. Based on our results, we recommend a conservation approach in which between-population outbred plants are introduced into very small populations to maximise the benefits of heterosis in M. smejkalii. Nevertheless, extrapolation to other species, or even other populations of M. smejkalii of limited size, should be done with caution because of the stochastic effects of genetic drift that result in unique genetic consequences of outbreeding for each population.
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
10619 - Biodiversity conservation
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Preslia
ISSN
0032-7786
e-ISSN
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Volume of the periodical
93
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
20
Pages from-to
149-168
UT code for WoS article
000647685400003
EID of the result in the Scopus database
2-s2.0-85106466281