Patterns of heterochromatin distribution in plant chromosomes.
By M. Guerra. 2000
215 citations recorded by the source corpus.
The C-band distribution patterns of 105 angiosperm species were compared to identify general patterns or preferential sites for heterochromatin. The base-specific fluorochrome reaction of heterochromatin for 58 of these species and the role played by the average chromosome size in band distribution were also considered. The results showed that heterochromatin was preferentially located in similar chromosome regions, regardless of the distance from the centromere. This trend results in generalized bands, with heterochromatin distribution being identical in most chromosomes of a karyotype. Such bands very often displayed the same fluorochrome reaction, suggesting possible repeat transfer between non-homologous sites. Chromosome size may also play a role in heterochromatin location, since proximal bands were much more common in small-sized chromosomes.
Subfields: Molecular Biology, Plant Science
View Paper: https://www.semanticscholar.org/paper/d83686c2e5ac53b1e589b12e796205fd1378e691
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In Molecular Biology
In Plant Science
Citations in the corpus
- Cytotaxonomy: The end of childhood (2012, background): “…chromosome number of a taxon may be defined as ‘‘one of the haploid numbers observed in the taxon that most parsimoniously explains the chromosomal variability of that group and shows a clear relationship with the basic number of the closest related groups’’ (reviewed by Guerra 2000a, 2008).”