Perianth symmetry in sexually differentiated flowers of Akebia quinata (Lardizabalaceae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10504023" target="_blank" >RIV/00216208:11310/25:10504023 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vndLw61fjp" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vndLw61fjp</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7717/peerj.20060" target="_blank" >10.7717/peerj.20060</a>
Alternative languages
Result language
angličtina
Original language name
Perianth symmetry in sexually differentiated flowers of Akebia quinata (Lardizabalaceae)
Original language description
Sexual differentiation of monoecious plants usually involves differentiation in the size of female and male flowers produced on the same individuals. In the nectarless Akebia quinata (Houtt.) Decne (Lardizabalaceae), the trimeric, actinomorphic female flowers are larger than the males, which is explained as an adaptive trait to prevent self-pollination, as conspicuous female flowers are usually visited by pollinators earlier than smaller male flowers of the same individuals. This results in the plants being cross-pollinated rather than geitonogamously pollinated. However, it is also known that the development of the perianth in this species is genetically associated with the ontogeny of the petaloid sepals. These are thus developmentally linked to the ontogeny of the stamens. Therefore, it is possible that female flowers lacking fertile stamens also have less developmental control over the perianth ontogeny. Consequently, our study investigated whether female and male flowers of A. quinata differ in their overall shape features, in the amounts of variation among flowers, as well as in the extent of different types of asymmetry in perianth shapes. Geometric morphometric analyses of triradial perianth symmetry based on the generalised Procrustes analysis of a complete symmetry group of perianth shapes showed that female flowers were indeed significantly more variable in all different subspaces of their symmetric and asymmetric shape variation. This included the differences among individual flowers, their rotational and bilateral symmetry as well as the asymmetry among sepals within flowers. These results indicate that developmental control over perianth shape is systematically weaker in female flowers compared to male flowers of A. quinata. It is therefore likely that this phenomenon is related to the presence or absence of fertile male reproductive organs, whose development is linked to the ontogeny of the perianth and the maintenance of its trimeric symmetry.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PeerJ
ISSN
2167-8359
e-ISSN
2167-8359
Volume of the periodical
13
Issue of the periodical within the volume
17 September 2025
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
e20060
UT code for WoS article
001578691800001
EID of the result in the Scopus database
2-s2.0-105021250416