Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Lampbrush Chromosomes01:51

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
Polytene Chromosomes02:04

Polytene Chromosomes

Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also regularly...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Residual anophelism in Italy: distribution in 4 southern regions].

Annali dell'Istituto superiore di sanita·1994
Same author

[Leishmaniasis vectors (Diptera, Psychodidae) in 3 different environments of western Sicily and 2 of the Aeolian Islands].

Parassitologia·1990
Same author

Rickettsiae of the spotted fever group in dog fleas (Ctenocephalides spp.) in Western Sicily.

Annals of tropical medicine and parasitology·1989
Same author

Anopheles labranchiae in Sicily: decrease of susceptibility to insecticides.

Transactions of the Royal Society of Tropical Medicine and Hygiene·1983
Same author

[Notes on regional entomology as related to rickettsial infections].

Minerva medica·1977
Same author

Isolation of Thogoto virus from Rhipicephalus bursa ticks in western Sicily.

Acta virologica·1972

Related Experiment Video

Updated: Jun 29, 2026

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders
10:07

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders

Published on: December 5, 2016

The salivary gland chromosomes of Anopheles labranchiae Falleroni 1926.

C Bruno-Smiraglia, A Lavagnino

    Parassitologia
    |January 1, 1976
    PubMed
    Summary

    This study details the salivary gland chromosomes of Anopheles labranchiae, comparing them to the closely related species Anopheles atroparvus. Researchers identified specific chromosomal regions that exhibit asynapsis in hybrids between these two mosquito species.

    Area of Science:

    • Entomology
    • Genetics
    • Molecular Biology

    Background:

    • Anopheles labranchiae is a significant vector of malaria.
    • Understanding its genetic makeup is crucial for vector control strategies.
    • It belongs to the Anopheles maculipennis complex, closely related to Anopheles atroparvus.

    Purpose of the Study:

    • To describe and illustrate the salivary gland chromosomes of Anopheles labranchiae.
    • To compare the chromosomal map of A. labranchiae with that of A. atroparvus.
    • To identify and describe asynaptic regions in hybrids between A. labranchiae and A. atroparvus.

    Main Methods:

    • Cytogenetic analysis of salivary gland chromosomes.
    • Microscopic examination and detailed mapping.
    • Comparative analysis of chromosomal structures.

    More Related Videos

    Dissection and Immunostaining of Larval Salivary Glands from Anopheles gambiae Mosquitoes
    06:12

    Dissection and Immunostaining of Larval Salivary Glands from Anopheles gambiae Mosquitoes

    Published on: September 30, 2021

    Effective Oral RNA Interference (RNAi) Administration to Adult Anopheles gambiae Mosquitoes
    07:48

    Effective Oral RNA Interference (RNAi) Administration to Adult Anopheles gambiae Mosquitoes

    Published on: March 1, 2022

    Related Experiment Videos

    Last Updated: Jun 29, 2026

    Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders
    10:07

    Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders

    Published on: December 5, 2016

    Dissection and Immunostaining of Larval Salivary Glands from Anopheles gambiae Mosquitoes
    06:12

    Dissection and Immunostaining of Larval Salivary Glands from Anopheles gambiae Mosquitoes

    Published on: September 30, 2021

    Effective Oral RNA Interference (RNAi) Administration to Adult Anopheles gambiae Mosquitoes
    07:48

    Effective Oral RNA Interference (RNAi) Administration to Adult Anopheles gambiae Mosquitoes

    Published on: March 1, 2022

    Main Results:

    • Detailed description and figures of Anopheles labranchiae salivary gland chromosomes are provided.
    • The chromosomal map of A. labranchiae shows general comparability to that of A. atroparvus.
    • Specific chromosomal areas exhibiting asynapsis in interspecific hybrids were identified and described.

    Conclusions:

    • The chromosomal data provides a basis for distinguishing between A. labranchiae and A. atroparvus.
    • Understanding chromosomal differences can inform speciation studies within the Anopheles maculipennis complex.
    • Identification of asynaptic regions offers insights into genetic incompatibility and evolutionary relationships.