Karyotaxonomy of Myosotis alpestris group

0049873 - BÚ 2007 RIV CZ eng J - Journal Article
Štěpánková, Jitka
Karyotaxonomy of Myosotis alpestris group.
[Chromozomové počty a taxonomické poznámky k zástupcům skupiny Myosotis alpestris.]
Preslia. Roč. 78, - (2006), s. 345-352. ISSN 0032-7786. E-ISSN 0032-7786
R&D Projects: GA AV ČR IAA6005312
Institutional research plan: CEZ:AV0Z60050516
Keywords : karyogeography * Myosotis alpestris group * distribution area
Subject RIV: EF - Botanics
Impact factor: 2.119, year: 2006

Chromosome numbers of taxa belonging to the Myosotis alpestris group are provided and/or confirmed. A chromosome count is reported for the first time for M. olympica. A new ploidy level (2n = 24) was revealed within M. stenophylla for which previously only tetraploid cytotypes are reported. Myosotis stenophylla is identified for the first time from Greece. Previous chromosome counts for M. ambigens, M. alpestris, M. atlantica, M. corsicana, M. lithospermifolia, and M. suaveolens are confirmed based on plants originating from karyologically poorly investigated parts of the distribution areas of this polyploid complex.

V práci jsou uvedeny výsledky karyologické analýzy druhů Myosotis alpestris, M. ambigens, M. atlantica, M. corsicana, M. lithospermifolia, M. olympica, M. stenophylla a M. suaveolens. Pro druh M. olympica byl poprvé stanoven chromozomový počet, 2n = 24. Nově byl pro území Řecka zjištěn druh M. stenophylla a zároveň poprvé pro tento druh stanoven diploidní počet 2n = 24.
Permanent Link: http://hdl.handle.net/11104/0140150