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Breakdown of the Balanced Lethals in Rhoeo: The Structure of the Alethal Renner Complex of the Homozygotic Stock of Rhoeo

Breakdown of the Balanced Lethals in Rhoeo: The Structure of the Alethal Renner Complex of the... Fluorescence in situ hybridization, base-specific fluorescence, C-banding and silver-staining were performed to reveal the cyto-molecular constitution of the karyotype in the bivalent-forming Rhoeo spathacea concolor. It was shown that the genome of this form is almost identical to the β-complex of the ring-forming rhoeos. In spite of some modifications in the arrangement of a few distal rDNA sites and in the amount of pericentromeric AT-rich heterochromatin, the alethal genome of the bivalent-forming Rhoeo seems segmentally unaltered. Thus, the breakdown of balanced lethals in Rhoeo is most likely uncoupled from creating new chromosome arm combinations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Cytogenetic and Genome Research Karger

Breakdown of the Balanced Lethals in Rhoeo: The Structure of the Alethal Renner Complex of the Homozygotic Stock of Rhoeo

Golczyk, H.
Cytogenetic and Genome Research , Volume 134 (3): 5 – Jan 1, 2011
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References (25)

Publisher
Karger
Copyright
© 2011 S. Karger AG, Basel
ISSN
1424-8581
eISSN
1424-859X
DOI
10.1159/000328832
Publisher site
See Article on Publisher Site

Abstract

Fluorescence in situ hybridization, base-specific fluorescence, C-banding and silver-staining were performed to reveal the cyto-molecular constitution of the karyotype in the bivalent-forming Rhoeo spathacea concolor. It was shown that the genome of this form is almost identical to the β-complex of the ring-forming rhoeos. In spite of some modifications in the arrangement of a few distal rDNA sites and in the amount of pericentromeric AT-rich heterochromatin, the alethal genome of the bivalent-forming Rhoeo seems segmentally unaltered. Thus, the breakdown of balanced lethals in Rhoeo is most likely uncoupled from creating new chromosome arm combinations.

Journal

Cytogenetic and Genome Research – Karger

Published: Jan 1, 2011

Keywords: Fluorescence in situ hybridization; rDNA; Renner complexes; Rhoeo; Translocations

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