Abstract
A comparative analysis of ten taxa of the genus Iris was carried out based on biomorphological and karyological characteristics. The assessment of morphological variability structure allowed to identify taxonomic indicators common to the analyzed species and characterized by relatively low common and consistent variability: length and width of the outer perianth lobes, length and width of the inner perianth lobes, length of the stamen filament, anther and pistil, width of the fruit, as well as length and width of the seed. Based on the constructed phylogenetic relationships based on the identified taxonomic features, the studied species were grouped into conditional groups: 1. I. carthaliniae, I. halophila, I. spuria; 2. I. lactea; 3. I. pseudacorus, I. setosa; 4. I. sibirica, I. sanguinea; 5. I. graminea; 6. I. pumila, which is also consistent with chromosome numbers found by us in somatic tissue.
Highlights
IntroductionThe genus Iris L. is the largest and most complex genus of the family Iridaceae and includes, according to various authors, from 200 to 400 species (according to the database The Plant List – 362 [1]) and more than 35 thousand varieties [2]
The genus Iris L. is the largest and most complex genus of the family Iridaceae and includes, according to various authors, from 200 to 400 species and more than 35 thousand varieties [2]
We considered the traits most accessible for study
Summary
The genus Iris L. is the largest and most complex genus of the family Iridaceae and includes, according to various authors, from 200 to 400 species (according to the database The Plant List – 362 [1]) and more than 35 thousand varieties [2]. There are publications on the use of morphological variability structure assessment in biology for the classification of morphological features of some plant and animal species by the ratio of common and consistent variability. The authors distinguish 4 groups of indicators: ecological and biological system, biological, genetic (taxonomic) and environmental indicators. Such traits were found for Helianthus annuus [17], Cephalanthera rubra [18], etc. In order to identify the taxonomically significant morphological features of the generative and vegetative spheres of the species of the genus Iris and their applicability to the phylogenetic relationship of the numerical classification, the structure of the morphological variability of plants of 10 species was evaluated. When discussing the taxonomy of representatives of the genus Iris, the results of a study of a set of chromosomes in somatic tissue are used
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