Related Experiment Video
Updated: Jul 31, 2026

12:47
Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
Published on: February 3, 2012
[Karyotype analysis of Carpesium cernuum]
Zhong Yao Cai = Zhongyaocai = Journal of Chinese Medicinal Materials
|February 11, 2003
Summary
This study details the chromosome number and karyotype of Carpesium cernuum, establishing its diploid chromosome count and detailed classification. Findings provide essential data for plant genetics and cytotaxonomy.
Area of Science:
- Cytogenetics
- Plant Biology
- Karyology
Context:
- Carpesium cernuum is a plant species requiring detailed chromosomal characterization.
- Understanding plant chromosome structure is fundamental to evolutionary and taxonomic studies.
Purpose:
- To determine and report the chromosome number, karyotype, and chromosome volume of Carpesium cernuum.
- To classify the karyotype of Carpesium cernuum using established systems (Levan, Stebbins).
Summary:
- The normal diploid chromosome number (2n) for Carpesium cernuum was identified as 40.
- The karyotype formula was determined as k(2n) = 40 = 24 m + 12 sm + 2 st + 2T, classifying it as "2B" type.
- Chromosome relative length and total chromosome volume were quantified using specific methodologies (S. R. Kuo, Arano).
Impact:
- Provides foundational cytogenetic data for Carpesium cernuum.
- Contributes to the comparative karyology of the Carpesium genus.
- Enhances understanding of plant chromosome morphology and evolution.
Related Concept Videos
Karyotyping
Describing the number and physical features of chromosomes can reveal abnormalities that underlie genetic diseases. This description is facilitated by special staining techniques that produce a particular banding pattern on each chromosome. State-of-the-art techniques make this approach even more powerful, enabling the detection of individual genes that cause disease.A Simple Chromosome Staining Technique Provides Valuable Scientific InsightSome genetic diseases can be detected by looking at...
Karyotyping
Describing the number and physical features of chromosomes can reveal abnormalities that underlie genetic diseases. This description is facilitated by special staining techniques that produce a particular banding pattern on each chromosome. State-of-the-art techniques make this approach even more powerful, enabling the detection of individual genes that cause disease.A Simple Chromosome Staining Technique Provides Valuable Scientific InsightSome genetic diseases can be detected by looking at...
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...
Histone Variants at the Centromere
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3 variants are also...

