Heterochromatin differentiation in holocentric chromosomes of Rhynchospora(Cyperaceae)

Authors
Vanzela, ALL Guerra, M
Citation
All. Vanzela et M. Guerra, Heterochromatin differentiation in holocentric chromosomes of Rhynchospora(Cyperaceae), GENET MOL B, 23(2), 2000, pp. 453-456
Citations number
21
Categorie Soggetti
Molecular Biology & Genetics
Journal title
GENETICS AND MOLECULAR BIOLOGY
ISSN journal
14154757 → ACNP
Volume
23
Issue
2
Year of publication
2000
Pages
453 - 456
Database
ISI
SICI code
1415-4757(200006)23:2<453:HDIHCO>2.0.ZU;2-T
Abstract
Holocentric chromosomes of six species of Rhynchospora, R. ciliata, R. pube ra, R. riparia and R. barbata (2n = 10), R. nervosa (2n = 30) and R. globos a (2n = 36), were stained with CMA(3)/DAPI fluorochromes or treated with C- banding and sequentially stained with Giemsa or CMA3/DAPI. Variability in b anding pattern was found among the species studied. Heterochromatin was obs erved on terminal and interstitial chromosome regions, indicating that the holocentric chromosomes of Rhynchospora show a heterochromatin distribution pattern similar to those plant monocentric chromosomes.