Document Detail


A quantitative study of chiasma terminalization in the grasshopper Chorthippus jucundus.
MedLine Citation:
PMID:  2732087     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The possible existence of chiasma terminalization in the grasshopper Chorthippus jucundus was tested in four males by means of comparisons between chiasma locations at diplotene and metaphase I within L3, M4 and M5 bivalents. Diplotene cells were stained by a C-banding technique to recognize heterochromatic regions, especially the centromeric ones, whereas metaphase I cells were stained by a silver staining technique that visualizes a core-like structure that extends through each homologous chromosome. The core is very pronounced at kinetochores and forms cross-shaped configurations at chiasmata. No evidence of chiasma terminalization has been found.
Authors:
J L Santos; G Ciprés; J R Lacadena
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Heredity     Volume:  62 ( Pt 1)     ISSN:  0018-067X     ISO Abbreviation:  Heredity     Publication Date:  1989 Feb 
Date Detail:
Created Date:  1989-07-24     Completed Date:  1989-07-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0373007     Medline TA:  Heredity     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  51-7     Citation Subset:  IM    
Affiliation:
Departamento de Genética, Facultad de Ciencias Biológicas, Universidad Complutense, Madrid, Spain.
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MeSH Terms
Descriptor/Qualifier:
Animals
Chromosome Banding
Chromosomes / ultrastructure*
Crossing Over, Genetic*
Gene Frequency
Grasshoppers / genetics*
Male
Meiosis
Metaphase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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