BIO Web Conf.
Volume 43, 2022International Scientific and Practical Conference “VAVILOV READINGS-2021” (VVRD 2021) dedicated to the 101st anniversary of the discovery of the law of homological series and the 134th anniversary of the birth of N. I. Vavilov
|Number of page(s)||9|
|Section||Basic Research in the Field of Plant and Microbial Studies|
|Published online||19 January 2022|
Analysis of the variability of the quantitative traits of the generative shoot of two white-flowered carnation species (Dianthus awaricus, Dianthus fragrans) under the conditions of Dagestan
Mountain Botanical Garden DFRS RAS, 367000, str. 75 Yaragskogo, Makhachkala, Russian Federation
* Corresponding author: email@example.com
The paper presents the results of assessing the quantitative traits of generative shoots of two white-flowered carnation species from four geographically isolated points: Dianthus awaricus (Oboda, Khvarada) and Dianthus fragrans (Khindakh, Charoda). Comparative analysis showed that, in general, the average values of most morphological characters are higher in D. fragrans, and the width of the petal and the number of lobe denticles are higher in D. awaricus. According to the results of two-way analysis of variance, the greatest contribution to the differentiation of species according to the relative components of variance (h2) is made by the traits “number of serrature on a petal” (73.2%), “cup length” (64.7%) and “petal index” (45.8%); unreliable traits (0.0–1.2%) – “flower length”, “flower diameter”, “flower mass” and “internode index”. Growing conditions significantly affect the characteristics of the apical flower: length (53.6%), diameter (40.1%) and its mass (46.3%). Squares of Mahalanobis distances showed the similarity of D. fragrans cenopopulations and significant isolation in D. awaricus, which is possibly associated with significant differences in the complex of ecological-cenotic conditions and possible microevolutionary processes occurring in highly isolated populations. Between the two species, there is a clear separation in space of the two roots of canonical analysis and complete self-identification according to the classification matrix. Such studies contribute to the identification of similarities and differences between closely related species in contrasting environmental conditions.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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