Bilateral Asymmetry and Shape of Lamina Plantago major L

Baranov, S. G.; Zykov, I. E.; Biryukova, T S; Fedorova, L V

doi:10.1088/1755-1315/666/4/042061

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…The population assumed as an experimental unit of measurement, since the sampling was carried out twice. Five linear (metric) traits were measured [16], the biggest one is the width of half of the leaf blade, which is often used in such studies. Other traits were the segments of the veins branch.…”

Section: Sample Preparationmentioning

confidence: 99%

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

et al. 2021

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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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Section: Sample Preparationmentioning

confidence: 99%

“…FA is a slight and non-directional deviation from strict symmetry, without admixture of directional asymmetry. FA indices have long been used to determine the stability of plants population development, including species of Tilia genus [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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About the asymmetry structure of the leaf blade Common plantain

Baranov

Zykov²,

Biryukova³

et al. 2021

E3S Web Conf.

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Using the method of geometric morphometrics the contour of the image of the leaf blade of the Common plantain (Plantago major) was aligned along the axis of symmetry to answer the question of whether the asymmetry and shape were influenced by environmental pollution by vehicles and climatic conditions. Procrustes distances showed that fluctuating asymmetry was higher in roadside populations in 2019. In the control populations, a mixture of two types of asymmetry, fluctuating and directional, was obtained. In 2020 with high precipitation (47% more than in 2019), asymmetry was represented by higher directional asymmetry (p <0.0001), although the overall asymmetry remained the same. The nonparametric Kruskal-Wallis test showed the influence on the shape only climatic environments of the year (p <0.001). The geographical location of the populations and the combined effect of the factors year and the place of leaves gathering did not affect the shape of the leaf blade. In 2020, no data were obtained on the excess of asymmetry in roadside populations compared to the control, therefore authors conclude about the weak bioindicative properties of the Common plantain in response to traffic pollution.

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Bilateral Asymmetry and Shape of Lamina Plantago major L

Cited by 2 publications

References 16 publications

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

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

About the asymmetry structure of the leaf blade Common plantain

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