
%0 Journal Article
%A Kokubugata, G. 
%A Kondo, K. 
%A Wilson, G. W. 
%A Randall, L. M. 
%A van der Schans, A. 
%A Morris, D. K. 
%T Comparison of karyotype and rDNA-distribution in somatic chromosomes of <emph type="2">Bowenia</emph> species (Stangeriaceae, Cycadales)
%J Australian Systematic Botany
%D 2000/02/28
%V 13
%N 1
%P 15-20
%K 
%R https://doi.org/10.1071/SB98028
%U https://www.publish.csiro.au/paper/SB98028 
%X Somatic chromosomes at mitotic metaphase of Bowenia serrulata, B. spectabilis and B. sp. &#8216;Tinaroo&#8217; 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. &#8216;Tinaroo&#8217; each have a chromosome number of 2n = 18. The karyotype of B. serrulata exhibits 10 median-centromeric chromosomes, while B. spectabilis and B. sp. &#8216;Tinaroo&#8217; exhibit eight median-centromeric chromosomes. By using FISH, B. serrulata, B. spectabilis and B. sp. &#8216;Tinaroo&#8217; 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. &#8216;Tinaroo&#8217;. 
