On the question of the karyology of some species of the genus Iris L.
https://doi.org/10.25684/0513-1634-2023-149-22-29
Abstract
The characteristic of the karyotype is an integral part of the description of the species. Cytogenetically, most species of the genus Iris have been studied mainly at the level of chromosome numbers, with a mark of distribution areas. The aim of the work was to assess the information content of karyological criteria for identifying phylogenetic relationships and compliance with the most relevant modern classification systems of the genus Iris using the example of a complex of species introduced at the collection site of the South Ural Botanical Garden-Institute of the Ufa Federal Research Center of the Russian Academy of Sciences. In the studied species, the following numbers of chromosomes in the somatic tissue were confirmed: I. lactea – 2n=40, I. carthaliniae – 2n=44. The chromosome numbers have been clarified for I. pseudacorus – 2n=34, I. graminea – 2n=34, I. sanguinea – 2n=28, I. spuria – 2n=44, I. setosa – 2n=34, I. halophila – 2n=44, I. pumila – 2n=30, I. sibirica – 2n=28. Differences between species in terms of size and ratio of chromosome morphotypes were revealed. It has been established that closely related species have the same ploidy and similar total length of chromosomes. The ratios of chromosome morphotypes in the chromosome set do not show correspondence with modern classification schemes of the genus.
About the Author
E. A. Aukhadieva
ФБУН «Уфимский научно-исследовательский институт медицины труда и экологии человека»
Russian Federation
Russian Federation
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Review
For citations:
Aukhadieva E.A. On the question of the karyology of some species of the genus Iris L. Bulletin of the State Nikitsky Botanical Gardens. 2023;(149):22-29. (In Russ.) https://doi.org/10.25684/0513-1634-2023-149-22-29
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