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

Karyotyping01:17

Karyotyping

49.5K
Overview
49.5K
Law of Independent Assortment02:03

Law of Independent Assortment

46.7K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
46.7K
Chi-square Analysis02:46

Chi-square Analysis

29.1K
The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
29.1K
Chromosomal Theory of Inheritance01:39

Chromosomal Theory of Inheritance

43.7K
In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
43.7K
Polytene Chromosomes02:04

Polytene Chromosomes

9.3K
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...
9.3K
Crossing Over01:34

Crossing Over

128.9K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
128.9K

You might also read

Related Articles

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

Sort by
Same author

Parentage determination in maize hybrids using the arbitrarily primed polymerase chain reaction (AP-PCR).

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

High output genetic mapping of polyploids using PCR-generated markers.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Phylogenetic analysis of chloroplast restriction enzyme site mutations in the Saccharinae Griseb. subtribe of the Andropogoneae Dumort. tribe.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Phylogenetic analysis of organellar DNA sequences in the Andropogoneae: Saccharinae.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Methyltransferases as tools to alter the specificity of restriction endonucleases.

Methods in molecular biology (Clifton, N.J.)·2011
Same author

Immunoregulatory mechanisms of macrophage PPAR-γ in mice with experimental inflammatory bowel disease.

Mucosal immunology·2010

Related Experiment Video

Updated: May 6, 2026

Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems
09:21

Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems

Published on: August 17, 2022

1.4K

Chromosome assortment in Saccharum.

S M Al-Janabi1, R J Honeycutt, B W Sobral

  • 1California Institute of Biological Research, 11099 N. Torrey Pines Rd., Suite 300, 92037, La Jolla, CA, USA.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|November 2, 2013
PubMed
Summary

Polysomic inheritance was not observed in Saccharum officinarum and Saccharum robustum crosses, differing from Saccharum spontaneum. This finding impacts sugarcane evolution and breeding strategies.

More Related Videos

Author Spotlight: Advancing Chromatin Research and Overcoming Limitations with a High-Enrichment Locus-Specific Chromatin Isolation Protocol
10:33

Author Spotlight: Advancing Chromatin Research and Overcoming Limitations with a High-Enrichment Locus-Specific Chromatin Isolation Protocol

Published on: November 17, 2023

1.8K
Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
10:08

Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis

Published on: August 12, 2019

13.6K

Related Experiment Videos

Last Updated: May 6, 2026

Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems
09:21

Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems

Published on: August 17, 2022

1.4K
Author Spotlight: Advancing Chromatin Research and Overcoming Limitations with a High-Enrichment Locus-Specific Chromatin Isolation Protocol
10:33

Author Spotlight: Advancing Chromatin Research and Overcoming Limitations with a High-Enrichment Locus-Specific Chromatin Isolation Protocol

Published on: November 17, 2023

1.8K
Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
10:08

Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis

Published on: August 12, 2019

13.6K

Area of Science:

  • Plant genetics
  • Molecular biology
  • Evolutionary biology

Background:

  • Saccharum spontaneum exhibits random chromosome pairing.
  • Understanding inheritance patterns in Saccharum is crucial for breeding.

Purpose of the Study:

  • Investigate polysomic inheritance in a typical biparental cross of Saccharum.
  • Analyze chromosome pairing and assortment in Saccharum officinarum and Saccharum robustum.

Main Methods:

  • Arbitrarily primed PCR used to analyze 738 loci in S. officinarum and 720 loci in S. robustum.
  • Single-dose polymorphisms identified and linkage analysis performed.
  • Genetic mapping hypotheses generated for both genomes.

Main Results:

  • Fifty single-dose polymorphisms in S. officinarum and 33 in S. robustum identified.
  • Linkage analysis revealed both repulsion and coupling phases.
  • S. officinarum showed 7 linkage groups; S. robustum showed 5 linkage groups.

Conclusions:

  • Complete polysomic inheritance was not observed in the studied S. officinarum and S. robustum.
  • Chromosomal behavior differs from that in S. spontaneum.
  • Findings have implications for sugarcane evolution and breeding.