Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves
Several related yellow-flowered houseleek species which occur on the Balkan Peninsula are divided into two complexes: Sempervivum ciliosum (S. ciliosum, S. jakucsii, S. klepa, S. octopodes, and S. galicicum) and the S. ruthenicum complex (S. ruthenicum, S. leucanthum, S. kindingeri, and S. zeleborii...
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| Format: | Article |
| Language: | English |
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University of Belgrade
2021-10-01
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| Series: | Botanica Serbica |
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| Online Access: | https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_2_797_full.pdf |
| _version_ | 1818719304242167808 |
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| author | Maja Jovanović Dmitar Lakušić Branislava Lakušić Bojan Zlatković |
| author_facet | Maja Jovanović Dmitar Lakušić Branislava Lakušić Bojan Zlatković |
| author_sort | Maja Jovanović |
| collection | DOAJ |
| description | Several related yellow-flowered houseleek species which occur on the Balkan Peninsula are divided into two complexes: Sempervivum ciliosum (S. ciliosum, S. jakucsii, S. klepa, S. octopodes, and S. galicicum) and the S. ruthenicum complex (S. ruthenicum, S. leucanthum, S. kindingeri, and S. zeleborii). Due to strong phenotypic plasticity and a limited number of studies, it is difficult to assert at this point whether all the above species are well defined in the taxonomic sense. Detailed studies of the epidermal structures have not been conducted for any of the species in either complex. The aim of this study was to investigate the degree of variability of the epidermal structures together with their potential usefulness for the taxonomic characterization of the species studied. A total of 18 quantitative characters of the epidermal structures of the adaxial and abaxial surfaces of the rosette leaves were analysed within 16 populations. In all species, the epidermal cells are polygonal or irregularly shaped, with straight or sinuous anticlinal walls, while the rosette leaves are amphistomatic with anisocytic stomata. Simple biseriate multicellular glandular trichomes were found on the adaxial and abaxial surfaces and the margins of the rosette leaves. The results of the descriptive statistics, univariate (ANOVA) and multivariate statistical analysis (CDA, AHC) showed low to high variability in the epidermal cells, guard cells and trichomes. The multivariate analysis showed diversification among the complexes and species. The length of the marginal and apical trichomes of the rosette leaves contributed most to diversification. |
| first_indexed | 2024-12-17T20:04:49Z |
| format | Article |
| id | doaj.art-e9df9ee4ceed410aa837ffca948705d3 |
| institution | Directory Open Access Journal |
| issn | 1821-2158 1821-2638 |
| language | English |
| last_indexed | 2024-12-17T20:04:49Z |
| publishDate | 2021-10-01 |
| publisher | University of Belgrade |
| record_format | Article |
| series | Botanica Serbica |
| spelling | doaj.art-e9df9ee4ceed410aa837ffca948705d32022-12-21T21:34:22ZengUniversity of BelgradeBotanica Serbica1821-21581821-26382021-10-0145216317610.2298/BOTSERB2102163JDiversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leavesMaja Jovanović0Dmitar Lakušić1Branislava Lakušić2Bojan Zlatković3University of Niš, Faculty of Sciences and Mathematics, Department of Biology and Ecology, Niš, SerbiaUniversity of Belgrade , Faculty of Biology, Institute of Botany and Botanical Garden Jevremovac, Belgrade, SerbiaUniversity of Belgrade, Faculty of Pharmacy, Department of Botany, Belgrade, SerbiaUniversity of Niš, Faculty of Sciences and Mathematics, Department of Biology and Ecology, Niš, SerbiaSeveral related yellow-flowered houseleek species which occur on the Balkan Peninsula are divided into two complexes: Sempervivum ciliosum (S. ciliosum, S. jakucsii, S. klepa, S. octopodes, and S. galicicum) and the S. ruthenicum complex (S. ruthenicum, S. leucanthum, S. kindingeri, and S. zeleborii). Due to strong phenotypic plasticity and a limited number of studies, it is difficult to assert at this point whether all the above species are well defined in the taxonomic sense. Detailed studies of the epidermal structures have not been conducted for any of the species in either complex. The aim of this study was to investigate the degree of variability of the epidermal structures together with their potential usefulness for the taxonomic characterization of the species studied. A total of 18 quantitative characters of the epidermal structures of the adaxial and abaxial surfaces of the rosette leaves were analysed within 16 populations. In all species, the epidermal cells are polygonal or irregularly shaped, with straight or sinuous anticlinal walls, while the rosette leaves are amphistomatic with anisocytic stomata. Simple biseriate multicellular glandular trichomes were found on the adaxial and abaxial surfaces and the margins of the rosette leaves. The results of the descriptive statistics, univariate (ANOVA) and multivariate statistical analysis (CDA, AHC) showed low to high variability in the epidermal cells, guard cells and trichomes. The multivariate analysis showed diversification among the complexes and species. The length of the marginal and apical trichomes of the rosette leaves contributed most to diversification.https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_2_797_full.pdfsempervivum ciliosum complexsempervivum ruthenicum complexepidermal cellsstomatatrichomes |
| spellingShingle | Maja Jovanović Dmitar Lakušić Branislava Lakušić Bojan Zlatković Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves Botanica Serbica sempervivum ciliosum complex sempervivum ruthenicum complex epidermal cells stomata trichomes |
| title | Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves |
| title_full | Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves |
| title_fullStr | Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves |
| title_full_unstemmed | Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves |
| title_short | Diversification of yellow-flowered Sempervivum (Crassulaceae) species from the Balkan Peninsula: evidence from the morphometric study of the epidermal structures of rosette leaves |
| title_sort | diversification of yellow flowered sempervivum crassulaceae species from the balkan peninsula evidence from the morphometric study of the epidermal structures of rosette leaves |
| topic | sempervivum ciliosum complex sempervivum ruthenicum complex epidermal cells stomata trichomes |
| url | https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_2_797_full.pdf |
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