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[Locus ref(2)P of Drosophila melanogaster. I. Cytogenetic localization of ref(2)P]
Abstract:
The ref(2)P gene is a Drosophila gene which acts on Sigma virus multiplication. From recombination experiments the ref(2)P gene was located between hk and pr. This location was confirmed by the study of eight chromosomic aberrations, without ref(2)P gene activity, obtained following X irradiation. From the cytological study of three of these chromosomes and from the study of the ref(2)P gene activity of chromosomic aberrations obtained by other workers in the same region of the second chromosome, the ref(2)P gene was cytologically located in 37E3-37F3.
Insights
The ref(2)P gene in Drosophila influences Sigma virus multiplication. Genetic mapping and chromosomal aberration studies precisely located this gene to the 37E3-37F3 region on the second chromosome.
Area of Science:
- Genetics
- Virology
- Drosophila melanogaster research
Context:
- The ref(2)P gene's role in Sigma virus multiplication is known.
- Previous studies mapped the gene's approximate location using recombination experiments.
Purpose:
- To precisely map the ref(2)P gene's location.
- To correlate genetic mapping with cytological data.
Summary:
- Recombination experiments placed the ref(2)P gene between the hk and pr loci.
- Analysis of eight X-ray induced chromosomal aberrations lacking ref(2)P activity confirmed this region.
- Cytological examination of three aberrations and literature data localized the ref(2)P gene to 37E3-37F3 on the Drosophila second chromosome.
Impact:
- Provides a precise cytological map position for the ref(2)P gene.
- Facilitates further research into the gene's function in viral replication.
- Enhances understanding of gene-chromosome interactions in Drosophila.