ArticleGenetics and molecular biology2009
Karyotype differentiation of four Cestrum species (Solanaceae) revealed by fluorescent chromosome banding and FISH.
Article in Genetics and molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 25 citations in OpenAlex.
- Diversity of the repetitive DNA fraction in Cestrum, the genus with the largest genomes within Solanaceae.Molecular biology reports · 2022Article
- IGS sequences in Cestrum present AT- and GC-rich conserved domains, with strong regulatory potential for 5S rDNA.Molecular biology reports · 2020Article
- Karyotype analysis of eight cultivated Allium species.Journal of applied genetics · 2019Article
- Distribution of 45S rDNA sites in chromosomes of plants: structural and evolutionary implications.BMC evolutionary biology · 2012Article
- Hypomethylation of cytosine residues in cold-sensitive regions of Cestrum strigilatum (Solanaceae).Genetics and molecular biology · 2012Article
- Occurrence and chromosome distribution of retroelements and NUPT sequences in Copaifera langsdorffii Desf. (Caesalpinioideae).Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2010Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The karyotypes of four South American species of Cestrum (C. capsulare,C. corymbosum,C. laevigatum and C. megalophylum) were studied using conventional staining, C-CMA/DAPI chromosome banding and FISH with 45S and 5S rDNA probes. The karyotypes showed a chromosome number of 2n = 2x = 16, with metacentric chromosomes, except for the eighth submeta- to acrocentric pair. Several types of heterochromatin were detected, which varied in size, number, distribution and base composition. The C-CMA(+) bands and 45S rDNA were located predominantly in terminal regions. The C-CMA (+) /DAPI (+) bands appeared in interstitial and terminal regions, and the C-DAPI (+) bands were found in all chromosome regions. The 5S rDNA sites were observed on the long arm of pair 8 in all species except C. capsulare, where they were found in the paracentromeric region of the long arm of pair 4. The differences in band patterns among the species studied here, along with data from other nine species reported in the literature, suggest that the bands are dispersed in an equilocal and non-equilocal manner and that structural rearrangements can be responsible for internal karyotype diversification. However, it is important to point out that the structural changes involving repetitive segments did not culminate in substantial changes in the general karyotype structure concerning chromosome size and morphology.
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