Light induces variation in size and shape of Iris pumila flower parts in two natural habitats
2015
Аутори:
Vujić, VukicaAvramov, Stevan
Barišić Klisarić, Nataša
Živković, Uroš
Tarasjev, Aleksej
Miljković, Danijela
Остала ауторства
Uzelac, BrankaТип документа:
Конференцијски прилог (Објављена верзија)
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© 2015 by the Serbian Plant Physiology Society
Метаподаци
Приказ свих података о документуАпстракт:
We employed the technique of geometric morphometrics to study variation of geometric size and shape
of Iris pumila flower parts (standard, fall and style) from plants growing in two natural habitats (exposed and shaded) in a protected natural reserve of the Deliblato Sands. We applied analysis of variance (ANOVA) for centroid size (CS) and multivariate analysis of variance (MANOVA) with all shape variables (Procrustes coordinates) as dependent variables, and with habitat as fixed and clone as a random factor. Landmarks and semilandmarks of standards, falls and styles were positioned in MakeFan6 and TpsDig program. The CVA (Canonical discriminant analysis) was used to visualize the differences of shape between the habitats with contrasting ambient light conditions. The heterogeneity of light conditions affected the flower shape. The mean values of centroid size (as a measure of geometric size) of I. pumila standards and falls were lower in open habitat than in shaded environment. The results of ANOVA revealed a statistically significant effect of habitat for standards, fall and style (p = 0.0009, p = 0.0223 and p = 0.0358, respectively,) and between-clone variability in size of all flower parts was also observed (all p < 0.0001). According to the results of MANOVA analysis significant differences in shape between habitats and clones (all p < 0.0001) were observed. Considering that the light intensity is significantly different in open and shaded habitats, we can only assume that this is the key factor that influences the size and shape variation of I. pumila floral parts.
Кључне речи:
shape of flower parts; light conditions; geometric morphometrics; Iris pumilaФинансирање / пројекти:
- Еволуција у хетерогеним срединама: механизми адаптација, биомониторинг и конзервација биодиверзитета (RS-MESTD-Basic Research (BR or ON)-173025)
У:
- Uzelac B, editor. Book of Abstracts: 2nd International Conference on Plant Biology, 21th Symposium of the Serbian Plant Physiology Society, and CОST Action FA1106 Quality Fruit Workshop; 2015 Jun 17-20; Petnica, Serbia. Belgrade: Serbian Plant Physiology Society: Institute for Biological Research “Siniša Stanković”; 2015. p. 131-2