Morphological diversity of functionally distinctive floral organs in Iris pumila: Does the flower color matter?
2018
Аутори:
Budečević, SanjaManitašević Jovanović, Sanja
Vuleta, Ana
Hočevar, Katarina
Tucić, Branka
Остала ауторства
Uzelac, BrankaТип документа:
Конференцијски прилог (Објављена верзија)
,
© 2018 by the Serbian Plant Physiology Society
Метаподаци
Приказ свих података о документуАпстракт:
Flowers are complex phenotypic structures composed of four functionally distinct organs arranged in concentric floral whorls: sepals in the frst, petals in the second, and two inner whorls
consisting of reproductive structures: stamens in the third whorl and tricarpellary gynoecium, in
the centre. Color, size and shape of these floral organs are considered to be important signals that
can attract the pollinators, advertising the plants’ floral reward (commonly nectar and pollen).
Here we use the methods of geometric morphometrics to compare size and shape variation of
three functionally different floral organs: falls, standards and style arms, among fve distinct color
morphs (blue, violet, dark blue, dark violet and yellow). Pairwise comparisons of the centroid size
means showed that all floral organs differed signifcantly among the analysed color phenotypes.
The mean shape of falls, standards and style arms appeared to be flower color-specifc as well, but
most noticeably between yellow - on one side, and blue/violet morphs - on the other. Procrustes
ANOVAs revealed the signifcant presence of directional and fluctuating asymmetry for falls and
standards among all fve color morphs, with the exception of style arms. The observed morphological diversifcation of floral organs among distinctive I. pumila color phenotypes could be the
adaptive outcome of the interactions with their pollinators.
Кључне речи:
shape; flower color; morphological diversity; Iris pumila; floral organsФинансирање / пројекти:
- Еволуција у лабораторији и адаптације у природи (RS-MESTD-Basic Research (BR or ON)-173007)
У:
- Uzelac B, editor. Book of abstracts. 3rd International Conference on Plant Biology (22nd SPPS Meeting); 2018 Jun 9-12; Belgrade, Serbia. Belgrade: Serbian Plant Physiology Society; Institute for Biological Research "Siniša Stanković"; Faculty of Biology; 2018. p. 82.