Eranthis stellata

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 stellata

Notes.

In all five studied populations of E. stellata from Primorsky Krai of Russia and Jilin Province of China, the somatic and basic chromosome numbers are 2 n = 16 and x = 8, respectively (Table 1 ; Fig. 2B-C ). Five pairs of chromosomes (I-V) are metacentric, two pairs (VI-VII) are submetacentric, and one pair (VIII) is acrocentric (Tables 2 and 3 ; Fig. 3 ). A pair of submetacentric chromosomes (VII) exhibits a secondary constriction. The karyotype formula of E. stellata is 2 n = 2 x = 16 = 10m + 2sm + 2smsat + 2t. No B was observed in this species. Here, we present the results of the karyomorphological analysis of E. stellata from the "Academicheskaya Station" population (pop. 2).

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.