[A combined approach to mapping the proximal border of the right arm of polytene chromosome 2 in Drosophila melanogaster otu 11].
Tsitologiia
; 47(3): 249-54, 2005.
Article
en Ru
| MEDLINE
| ID: mdl-16706170
A combined approach based on cytological observations in situ hybridization, and qualitative Southern-blot analyses were used to localize the proximal border of the right arm of polytene chromosome 2 in Drosophila melanogaster otu 11 strain. A genetically functional chromosome 2 is bounded by "deletions" C', C, D, B, A and ms2-10. Using in situ hybridization in conjunction with comparative quantitative Southern-blot hybridization to deletions in centromeric heterochromatin, DNA of specific centromeric clone lambda20p1.4 was localized with respect to "deletions" and on otu 11 polytene chromosomes. Comparison of hybridization sites of lambda20p1.4 on polytene chromosomes, and its amount in mutant lines of D. melanogaster carrying known "deletions" in the centromeric heterochromatin enabled us to localize the proximal border of the right arm of chromosome 2 in D. melanogaster otu 11 strain between the 39/40 region and hybridization site of the k20p1.4 DNA fragment.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cromosomas
/
Drosophila melanogaster
Tipo de estudio:
Qualitative_research
Límite:
Animals
Idioma:
Ru
Revista:
Tsitologiia
Año:
2005
Tipo del documento:
Article
Pais de publicación:
Rusia