Comparison of karyotype and rDNA-distribution in somatic chromosomes of Bowenia species (Stangeriaceae, Cycadales)

Kokubugata, G., Kondo, K., Wilson, G.W., Randall, L.M., van der Schans, A., and Morris, D.K. (2000) Comparison of karyotype and rDNA-distribution in somatic chromosomes of Bowenia species (Stangeriaceae, Cycadales). Australian Systematic Botany, 13 (1). pp. 15-20.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: http://dx.doi.org/10.1071/SB98028
 
8
1


Abstract

Somatic chromosomes at mitotic metaphase of Bowenia serrulata, B. spectabilis and B. sp. 'Tinaroo' is investigated by the standard aceto-orcein staining method and the fluorescent in situ hybridisation method (FISH) with ribosomal DNA (rDNA) probe. Bowenia serrulata, B. spectabilis and B. sp. 'Tinaroo' each have a chromosome number of 2n = 18. The karyotype of B. serrulata exhibits 10 median-centromeric chromosomes, while B. spectabilis and B. sp. 'Tinaroo' exhibit eight median-centromeric chromosomes. By using FISH, B. serrulata, B. spectabilis and B. sp. 'Tinaroo' show a hybridisation signal on the satellite of the short arm of two submedian-centromeric chromosomes. However, the other hybridisation signal pattern is different among B. serrulata, B. spectabilis and B. sp. 'Tinaroo'.

Item ID: 24598
Item Type: Article (Research - C1)
ISSN: 1446-5701
Date Deposited: 05 Feb 2013 23:37
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060309 Phylogeny and Comparative Analysis @ 50%
06 BIOLOGICAL SCIENCES > 0604 Genetics > 060499 Genetics not elsewhere classified @ 50%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960806 Forest and Woodlands Flora, Fauna and Biodiversity @ 100%
Downloads: Total: 1
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page