Versatility of reproductive modes and ploidy level interactions in Sorbus s.l. (Malinae, Rosaceae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899635" target="_blank" >RIV/60076658:12310/19:43899635 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/19:10405364
Result on the web
<a href="https://academic.oup.com/botlinnean/article/191/4/502/5575960" target="_blank" >https://academic.oup.com/botlinnean/article/191/4/502/5575960</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/botlinnean/boz054" target="_blank" >10.1093/botlinnean/boz054</a>
Alternative languages
Result language
angličtina
Original language name
Versatility of reproductive modes and ploidy level interactions in Sorbus s.l. (Malinae, Rosaceae)
Original language description
This study focuses on the frequency of reproductive modes and the role of reproductive mode variation in diversification of the genus Sorbus s.l. and evolutionary success of individual taxa. Our sampling covers all four ploidies known in Sorbus and includes stabilized taxa and recently formed biotypes. We infer reproductive modes of 3660 seeds using the flow cytometric seed screen method; we also calculated ploidy of contributing pollen. Sorbus shows high variability in reproduction pathways (sexuality, apomixis, formation of B-III hybrids, haploid parthenogenesis). Diploids are sexual, whereas polyploids show predominantly pseudogamous apomixis. In half of the polyploids studied, several reproductive modes were present and even intra-individual variation was detected. Diploids, tetraploids and pentaploids are pollinated by conspecific pollen, whereas triploids are largely, but not fully, dependent on the pollen of other species. In pseudogamous seeds, fertilization of the central cell by both sperms is a dominant pathway of endosperm origin. Flow cytometry of pollen did not detect unreduced pollen at any ploidy. The principal mechanisms of diversification in Sorbus are residual sexuality in apomicts, production of triploid taxa from diploid-tetraploid crosses and production of B-III hybrids. Evolutionary success of Sorbus taxa is largely dependent on the breeding system and is determined by self-(in)compatibility and the interplay between stabilizing apomixis and variation-generating sexuality.
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/GB14-36079G" target="_blank" >GB14-36079G: Plant diversity analysis and synthesis centre (PLADIAS)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Botanical Journal of the Linnean Society
ISSN
0024-4074
e-ISSN
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Volume of the periodical
191
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
502-522
UT code for WoS article
000501728200005
EID of the result in the Scopus database
2-s2.0-85076458048