Polytene chromosomes from ovarian pseudonurse cells of the Drosophila melanogaster otu mutant. I. Photographic map of chromosome 3

Chromosoma
T I Heino

Abstract

Certain mutant alleles of the otu locus in Drosophila melanogaster produce abnormal nurse cells in the ovaries. These cells are called pseudonurse cells (PNC), since they generate polytene chromosomes instead of endopolyploid ones and do not normally have an oocyte to nurse. The banding pattern of polytene chromosome 3 from the salivary glands (SG) and from PNCs of homozygous otu1 females was compared and a detailed photomap of PNC chromosomes with different degrees of polyteny is presented. The banding pattern was found to be strikingly similiar in the two tissues. The puffing pattern of the PNC chromosomes is discussed. No constrictions or breaks were found in the PNC chromosomes which seems to indicate that these sites, which are known to be underreplicated in the SG chromosomes, are equally replicated along with the rest of the chromosomes in the PNC nuclei.

References

Oct 1, 1977·Developmental Biology·R B HodgettsJ D O'Connor
Jan 1, 1986·Developmental Genetics·R C KingP S Nicolazzo
May 1, 1988·British Journal of Industrial Medicine·G AhlborgM Sorsa
Jan 1, 1970·Zeitschrift für Zellforschung und mikroskopische Anatomie·C C Dapples, R C King
May 1, 1980·Genetics·B R Hough-EvansE H Davidson
May 1, 1982·Cell·L Kalfayan, P C Wensink
Jul 25, 1983·Journal of Molecular Biology·P SpiererD S Hogness
Jul 1, 1984·Developmental Biology·J E Natzle, B J McCarthy
May 1, 1980·Developmental Biology·M Jacobs-LorenaE H Davidson
Apr 1, 1962·British Journal of Industrial Medicine·D W JONES
Nov 1, 1977·Proceedings of the National Academy of Sciences of the United States of America·A GarenJ A Lepesant
Apr 1, 1987·Roux's Archives of Developmental Biology : the Official Organ of the EDBO·Patrick Daniel Storto, Robert Charles King

❮ Previous
Next ❯

Citations

May 1, 1995·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·N I Mal'cevaI F Zhimulev
Aug 1, 1995·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·T P Hartman, D I Southern
Sep 27, 2014·Chromosoma·Dmitry E Koryakov, Igor F Zhimulev
Nov 24, 2017·Cold Spring Harbor Symposia on Quantitative Biology·Allan C Spradling

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.