Karyological studies on Aconitum lasiocarpum [Rchb.] Gayer [Ranunculaceae]

• Autorzy: Joachimiak A. , Ilnicki T. , Mitka J.
• Języki publikacji: EN

Abstrakty

EN

The karyotype structure of Aconitum lasiocarpum (Rchb.) Gáyer was investigated conventionally and by Giemsa C-banding. The chromosome complex of A. lasiocarpum is composed of two distinguishable pairs of long chromosomes and six pairs of considerably shorter chromosomes. Nucleolar organizers are localized on the shorter arms of three (1, 3 and 5) chromosomes. In all analyzed plants the first and third NOR-chromosome pairs show structural heterozygosity concerning the presence of small satellites. The C-banded karyotype of A. lasiocarpum is heterochromatin-poor; all fixed heterochromatin segments occupy 7.51% of karyotype length. Four satellited chromosomes have larger, terminally located heterochromatic segments on their shorter arms. The authors made preliminary karyological observations of two other Aconitum species, the closely related A. degenii and A. variegatum, and discussed the relationships between the three species.

Słowa kluczowe

EN

nucleolar organizer; heterochromatin; Aconitum lasiocarpum; cytological analysis; chromosome number; chromosome complex; C-banding; karyotype; Aconitum variegatum; Aconitum degenii

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 1999
• Tom: 41
• Opis fizyczny: p.205-211,fig

Twórcy

autor

Joachimiak A.

• Jagiellonian University, Grodzka 52, 31-044 Cracow, Poland

autor

Ilnicki T.

autor

Mitka J.

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