of BST and BT was highly heterochromatic and easily distinguished from A chromosomes (As) following the conventional C-banding
methodology, whereas heterochromatin can be observed in a more condensed or dispersed state along both Bs and As.
At least 6 individuals per species were subjected to the C-banding
and fluorochrome techniques.
Constitutive heterochromatin regions were observed on the centromeres of chromosomes in all four species by using C-banding
proximus (CASTELNAU, 1855), based on conventional staining, C-banding
and Ag-NOR staining.
Results for C-banding
revealed the presence of heterochromatin in the telomeric regions of the short arms: on a large metacentric chromosomal pair and on a sabmetacentric chromosomal pair.
Mapping and organization of highly-repeated DNA sequences by means of simultaneous and sequential FISH and C-banding
Slides for C-banding
were treated according to the technique described by Sumner (1972) with minor modifications.
pattern seems to be characteristic of spiders.
Following BE4, translocation heterozygotes were self pollinated and their progenies screened by C-banding
to isolate translocation homozygotes.
The Andean specimens present C-heterochromatic blocks in most of their 22 chromosomes, whereas non-Andean specimens have only 4-7 autosomes with C-banding
analyses and the evolution of heterochromatin among arvicolid rodents.
This insect shows a complex and widespread B chromosome polymorphism in the Iberian Peninsula, where more than 40 different B types have been differentiated on the basis of C-banding
(Henriques-Gil et al.