Spatial Variability of Small-leaved Linden (Tilia cordata Mill.) Leaf Blade

The features of asymmetry and shape of small-leaved linden leaf blades (Tilia cordata Mill.) on the Kola Peninsula (Murmansk region, Kirovsk) and in the middle part of Russia (Moscow region, Orekhovo-Zuevo) were studied. The size of leaf blades in the northern population (Murmansk oblast) was signif...

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Bibliographic Details
Published in:E3S Web of Conferences
Main Authors: Baranov Sergey G., Zykov Igor E., Poloskova Elena Yu., Lipponen Irina N., Goncharova Oxana A., Kuznetsova Darya D.
Format: Article in Journal/Newspaper
Language:English
French
Published: EDP Sciences 2021
Subjects:
Environmental sciences
GE1-350
Kola Peninsula
Murmansk
Kirovsk
kola peninsula
Murmansk Oblast
Online Access:https://doi.org/10.1051/e3sconf/202125406002
https://doaj.org/article/4fa86479a24a475da56360c923edb7b1
Description
Summary:The features of asymmetry and shape of small-leaved linden leaf blades (Tilia cordata Mill.) on the Kola Peninsula (Murmansk region, Kirovsk) and in the middle part of Russia (Moscow region, Orekhovo-Zuevo) were studied. The size of leaf blades in the northern population (Murmansk oblast) was significantly smaller (p <0.0001). Five linear traits had non-directional fluctuating asymmetry (FA). The method of geometric morphometrics showed a higher variability of leaf shape in the northern population compared to the southern one. Leaves differed in shape upon re-collection, and the leaf × side factor interaction showed the presence of FA in both populations (Goodall’s F criterion in the northern population was 31.7; in the southern – 92.3; p <0.0001). A high value of directional asymmetry was noted in the population on the Kola Peninsula (p <0.0001). The asymmetry of the shape did not depend on size of the leaf blades. According to linear features, plastic variability, especially in the northern population, strongly correlated with fluctuation variability (r = 0.81-0.82; p <0.05). The obtained data allows us to conclude that method of geometric morphometrics was more complex in determining the stability of development. FA was higher in the southern population, while directional asymmetry with a weak expropriation of FA was higher in the northern population. High latitude did not affect the decrease in developmental stability in terms of FA, but led to a decrease in the area of leaf blades with directional asymmetry.

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