| Geographic variation of the chromosomal polymorphism in Drosophila flavopilosa. | |
| | |
MedLine Citation:
|
PMID: 938974 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Natural populations of the Chilean species Drosophila flavopilosa Frey are polymorphic for the banding sequences in the fifth chromosome due to the existence of four paracentric inversions. Qualitative analysis of the polymorphism demonstrated that there are seasonal fluctuation and geographic variations of two kinds: altitudinal gradients and a north-south gradient. In addition, the northernmost and southernmost samples examined are polymorphic only for one inversion (inversion "B"). In the light of previous experimental evidence, it was concluded that the seasonal fluctuations and elevational differences are probably controlled by weather conditions, especially temperature. However, the observed differences between the central and marginal populations require another type of interpretation, similar to that postulated for other species that exhibit the same pattern of chromosomal variation. A photomicrographic map of the Standard banding pattern of the salivary gland polytene chromosomes of D. flavopilosa is presented. |
| | |
Authors:
|
D Brncic |
Related Documents
:
|
6982674 - Recombinant chromosome 18 in two offspring of a chromosome 18 inversion heterozygote. 17185644 - Evidence for large inversion polymorphisms in the human genome from hapmap data. 11043434 - A melas phenotype and a paternal inherited inversion of chromosome 10 in a female patient. 955624 - Structural variability of human chromosome 9 in relation to its evolution. 21255674 - Biomarkers of genotoxicity and genomic instability in a non-human primate, cebus libidi... 19300724 - Identification of the chromosome carrying the factor for resistance to meloidogyne inco... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Canadian journal of genetics and cytology. Journal canadien de génétique et de cytologie Volume: 18 ISSN: 0008-4093 ISO Abbreviation: Can. J. Genet. Cytol. Publication Date: 1976 Mar |
Date Detail:
|
Created Date: 1976-09-25 Completed Date: 1976-09-25 Revised Date: 2009-11-19 |
Medline Journal Info:
|
Nlm Unique ID: 0372706 Medline TA: Can J Genet Cytol Country: CANADA |
Other Details:
|
Languages: eng Pagination: 111-8 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Altitude Animals Chile Chromosome Inversion Chromosome Mapping Chromosomes / ultrastructure* Drosophila / ultrastructure* Genes Genetic Variation Karyotyping Polymorphism, Genetic* Seasons |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Identification of the mouse chromosomes by microdensitometry.
Next Document: Sex chromatin and chromosome numbers in Lepidoptera.