English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Scadoxus   multiflorus    Martyn, 1795 is an ornamental plant with brilliantly colored flowers. Even though its chromosomes are rather large, there is no karyotype description reported so far. Therefore, conventional and molecular cytogenetic studies including fluorescence  in situ  hybridization ( FISH ) with 45S and 5S rDNA, and human telomere sequence (TTAGGG) n  probes (  Arabidopsis  -type telomere probes yielded negative results) were carried out. The chromosome number is as reported previously, 2n = 18. The nine chromosome pairs include two large submetacentric, five large acrocentric, one medium acrocentric, two small metacentric and eight small submetacentric chromosomes. Hybridization sites of the 45S rDNA signals were on the short arm ends of chromosomes #1, #3 and #8, while 5S rDNA signals appeared on the long arm of chromosome 3, in one homologue as a double signal. The telomere signals were restricted to all chromosome ends. Three chromosome pairs could be newly identified, chromosome pair 3 by 5S rDNA and chromosomes #1, #3 and #8 by 45S rDNA loci. In addition to new information about rDNA locations we show that the ends of    S.   multiflorus    chromosomes harbor human instead of   Arabidopsis  -type telomere sequences. Overall, the    S.   multiflorus    karyotype presents chromosomal heteromorphy concerning size, shape and 45S and 5S rDNA positioning. As    Scadoxus    Rafinesque, 1838 and related species are poorly studied on chromosomal level the here presented data is important for better understanding of evolution in   Amaryllidaceae  .

Karyotypic features including organizations of the 5S, 45S rDNA loci and telomeres of Scadoxus multiflorus ( Amaryllidaceae )