Eranthis sibirica

Mitrenina, Elizaveta Yu., Erst, Andrey S., Peruzzi, Lorenzo, Skaptsov, Mikhail V., Ikeda, Hiroshi, Nikulin, Vyacheslav Yu. & Wang, Wei, 2021, Karyotype and genome size variation in white-flowered Eranthis sect. Shibateranthis (Ranunculaceae), PhytoKeys 187, pp. 207-227 : 207

Eranthis sibirica

Notes.

The somatic chromosome number of E. sibirica , another endemic species from Siberia, is 2 n = 42. The chromosome set of the species includes metacentric and submetacentric types of chromosomes. The karyotype formula of E. sibirica is 2 n = 6 x = 42 = 32m + 8sm + 2smsat. Here, we present the results of the karyomorphological analysis of E. sibirica from the "Slyudyanka Town" population (pop. 15) (Tables 2 and 3 ; Figs 2F and 3 ).

Figures

Figure 2. Mitotic metaphase plates of white-flowered Eranthis sect. Shibateranthis A E. lobulata, 2 n = 16 B E. stellata (pop. 2), 2 n = 16 C E. stellata (pop. 6), 2 n = 16 D E. tanhoensis (pop. 12), 2 n = 14 E E. tanhoensis (pop. 10), 2 n = 14 + 0 - 8 B (arrows point at B chromosomes) F E. sibirica (pop. 15), 2 n = 42 G E. byunsanensis, 2 n = 16 (arrows point at the heteromorphic chromosome pair) H E. pinnatifida (pop. 21), 2 n = 16 I E. pinnatifida (pop. 20), 2 n = 16 (arrows point at heteromorphic chromosome pair). Scale bars: 10 μm. Microphotographs by E. Yu. Mitrenina.

Figure 3. Haploid idiograms of white-flowered Eranthis sect. Shibateranthis species. I-VIII - chromosome pairs; m - metacentric chromosome; sm - submetacentric chromosome; st - subtelocentric chromosome; t - acrocentric chromosome; T - telocentric chromosome; B - B chromosome.