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

Overview of Transposition and Recombination02:13

Overview of Transposition and Recombination

16.3K
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
16.3K
Genetics of Speciation02:16

Genetics of Speciation

19.0K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.0K
Trihybrid Crosses02:27

Trihybrid Crosses

24.6K
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
24.6K
Monohybrid Crosses01:20

Monohybrid Crosses

215.2K
Overview
215.2K
Transgenic Plants02:50

Transgenic Plants

7.0K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.0K
Incomplete Dominance01:43

Incomplete Dominance

19.1K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
19.1K

You might also read

Related Articles

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

Sort by
Same author

Genetics of the peroxidase isoenzymes in Petunia : Part 1: organ specificity and general genetic aspects of the peroxidase isoenzymes.

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

Genetics of the peroxidase isoenzymes in Petunia : Part 2: Location and developmental expression of the structural gene prxB.

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

Genetics of the peroxidase isoenzymes in Petunia : Part 3: Location and developmental expression of the structural gene prxA.

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

Location of structural genes for glucose phosphate isomerase and for leucyl aminopeptidase on chromosome VII of Petunia.

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

Genetics of the peroxidase isoenzymes in Petunia : Part 5. Differential temporal expression of prxA alleles.

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

Genetics of the peroxidase isoenzymes in Petunia : 6. Differential temporal expression of prxB alleles.

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

Related Experiment Video

Updated: May 5, 2026

Floral-dip Transformation of Arabidopsis thaliana to Examine pTSO2::β-glucuronidase Reporter Gene Expression
10:24

Floral-dip Transformation of Arabidopsis thaliana to Examine pTSO2::β-glucuronidase Reporter Gene Expression

Published on: June 11, 2010

35.9K

Evidence for transposition in Petunia.

H J Wijsman1

  • 1Institute of Genetics, University of Amsterdam, Kruislaan 318, NL-1098 SM, Amsterdam, The Netherlands.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|November 20, 2013
PubMed
Summary

Genetic element Bi interacts with responsive anthocyanin alleles in Petunia, creating variegated flower colors. Loss of Bi results in white flowers, revealing responsive alleles and a weak Bi mutant.

Area of Science:

  • Plant genetics
  • Molecular biology
  • Flower coloration studies

Background:

  • Flower color in Petunia is influenced by genetic interactions.
  • Trans-regulatory elements play a role in controlling gene expression.
  • Anthocyanin pigments are key determinants of flower pigmentation.

Purpose of the Study:

  • To investigate the interaction between the trans-regulatory genetic element Bi and responsive anthocyanin alleles in Petunia.
  • To characterize the genetic basis of variegated flower color patterns.
  • To identify and describe a weak mutant of the Bi element.

Main Methods:

  • Genetic crosses in Petunia to analyze segregation patterns.
  • Phenotypic analysis of flower color in different genetic lines.

More Related Videos

Plant Growth and Agrobacterium-mediated Floral-dip Transformation of the Extremophyte Schrenkiella parvula
06:32

Plant Growth and Agrobacterium-mediated Floral-dip Transformation of the Extremophyte Schrenkiella parvula

Published on: January 7, 2019

12.7K
Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale
08:56

Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale

Published on: August 16, 2018

18.3K

Related Experiment Videos

Last Updated: May 5, 2026

Floral-dip Transformation of Arabidopsis thaliana to Examine pTSO2::β-glucuronidase Reporter Gene Expression
10:24

Floral-dip Transformation of Arabidopsis thaliana to Examine pTSO2::β-glucuronidase Reporter Gene Expression

Published on: June 11, 2010

35.9K
Plant Growth and Agrobacterium-mediated Floral-dip Transformation of the Extremophyte Schrenkiella parvula
06:32

Plant Growth and Agrobacterium-mediated Floral-dip Transformation of the Extremophyte Schrenkiella parvula

Published on: January 7, 2019

12.7K
Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale
08:56

Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale

Published on: August 16, 2018

18.3K
  • Mapping of the Bi element to specific chromosomes.

    • Main Results:

    • Demonstrated interaction between the Bi element and responsive anthocyanin alleles leads to variegated flower color.
    • Identified white-flowering segregants lacking the Bi element, confirming the presence of responsive alleles.
    • Described a weak mutant of the Bi element with altered function.
    • Determined that the Bi element is present in some Petunia lines and absent in others.
    • Mapped the Bi element to chromosome I in two specific Petunia lines.

    Conclusions:

    • The Bi element is a trans-regulatory factor controlling anthocyanin expression in Petunia.
    • Varied flower color patterns result from the interplay between Bi and specific anthocyanin alleles.
    • The Bi element's presence and function can be genetically mapped and mutated.