Changes in light intensity induce the developmental instability of Iris variegata flower parts
2022
Autori:
Miljković, DanijelaŽivković, Uroš
Barišić Klisarić, Nataša
Avramov, Stevan
Tarasjev, Aleksej
Ostala autorstva
Milutinović, MilicaTip dokumenta:
Konferencijski prilog (Objavljena verzija)
,
© 2022 by the Serbian Plant Physiology Society
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
The development sensitivities of flower parts of Iris variegata were studied in experimental conditions
with changes in light intensity as stressor. As index of environmental stress and developmental
instability we used indices of fluctuating asymmetry (FA8 as size-corrected index and FA17
as composite index of all traits measured on standard and fall flower parts). The 103 genotypes
from three native habitats (open, shaded and semi-shaded) were examined in two light intensities
(low and high). The measurements have been taken at five places along the longitudinal axis of
the flower parts in relation to the width from the main nerve to the edge of the object. Larger
values of the size-corrected index FA8 were found in the low light treatment for genotypes originating
from the open, while for genotypes originating from the shaded habitat development instability
was greater in the high light intensity treatment. Genotypes from semi-shaded habitat did
not show significant responses in both fluctuating assymetry indices to changes in light intensity.
The composite index FA17 showed the opposite pattern for genotypes from the shaded habitat
with higher values in the low light treatment, while genotypes from open habitat showed no
significant response. These results illustrated that light intensity may be an important factor contributing
to bilateral fluctuating asymmetry of flower parts when environment of genotype origin
is taken into consideration, and depending on the choosen index of developmental instability.
Ključne reči:
flower developmental stability; fluctuating asimmetry; light intensityFinansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200007 (Univerzitet u Beogradu, Institut za biološka istraživanja 'Siniša Stanković') (RS-MESTD-inst-2020-200007)
U:
- Milutinović M, editor. Book of Abstracts: 4th International Conference on Plant Biology and 23rd SPPS Meeting; 2022 6-8; Belgrade, Serbia. Belgrade: Serbian Plant Physiology Society; 2022. p. 140.