Behaviour of B-Chromosomes in Centaurea kandavanensis Wagenitz
1998 年 63 巻 1 号 p. 83-86
詳細
1998 年 63 巻 1 号 p. 83-86
Karyotype analysis and behaviour of B-chromosomes at meiosis in Centaurea kandavanensis are reported. The number of B-chromosomes was 0 to 3 in both somatic and gametic cells. The somatic karyotype consisted of eight metacentric pairs, two submetacentric pairs and 0-3B-submetacentric chromosomes. Analysis of chromosome behaviour at meiosis showed that the increase of number of B-chromosomes increased the mean chiasma frequency of A-chromosomes in pollen mother cells.
