Cytological and morphological variation in Bellevalia |
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| Authors: | Roland von Bothmer Per Wendelbo |
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| Affiliation: | Inst. of Genetics and Plant Breeding, Swedish Agricultural Univ., S–26800 Svalov, Sweden;Dept of Plant Geography, Univ. of Gothenburg, Carl Skottsbergs Gata 22, S–413 19 Gothenburg, Sweden. |
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| Abstract: | Material from 45 populations representing 15 species of Bellevalia were analyzed as to chromosome numbers and morphology. For 3 species reports are new, viz. for B. clusiana (2x), B, tauri (2x, 4x), and B. nivalis (4x). In B. saviczii diploids, tetraploids and hexaploids were found. The basic Bellevalia karyotype prevails, but chromosome heteromorphism is rather common at the populational level. B–chromosomes were found in some populations of B. glauca s.l. and B. saviczii. Discussions on karyotype variation, polyploidy, morphologic variation and generic delimitation are presented. |
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