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 Experiment Videos

Nonrandom mating in an open-pollinated maize population.

R Bijlsma1, R W Allard, A L Kahler

  • 1Department of Genetics, University of California, Davis, California 95616.

Genetics
|March 1, 1986
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

The effect of chemotherapy on subjective cognitive function in younger early-stage breast cancer survivors treated with chemotherapy compared to older patients.

Breast cancer research and treatment·2019
Same author

THE SIGNIFICANCE OF GENETIC EROSION IN THE PROCESS OF EXTINCTION. IV. INBREEDING DEPRESSION AND HETEROSIS EFFECTS CAUSED BY SELFING AND OUTCROSSING IN SCABIOSA COLUMBARIA.

Evolution; international journal of organic evolution·2017
Same author

MATING SYSTEM VARIATION IN FESTUCA MICROSTACHYS.

Evolution; international journal of organic evolution·2017
Same author

CORRELATIONS BETWEEN QUANTITATIVE CHARACTERS AND ENZYME GENOTYPES IN AVENA BARBATA.

Evolution; international journal of organic evolution·2017
Same author

AN EXPERIMENTAL EVALUATION OF THE RECOVERY POTENTIAL OF RYEGRASS POPULATIONS FROM GENETIC STRESS RESULTING FROM RESTRICTION OF POPULATION SIZE.

Evolution; international journal of organic evolution·2017
Same author

POPULATION STUDIES IN PREDOMINANTLY SELF-POLLINATED SPECIES. XI. GENETIC DIVERGENCE AMONG THE MEMBERS OF THE FESTUCA MICROSTACHYS COMPLEX.

Evolution; international journal of organic evolution·2017
Same journal

Coexistence of piRNA and KZFP defense systems: Evolutionary dynamics of layered defense against transposable elements.

Genetics·2026
Same journal

Creation and manipulation of bipartite expression transgenes in C. elegans using phiC31 recombinase.

Genetics·2026
Same journal

Inherited long telomeres induce a genome-wide transcriptional response in budding yeast.

Genetics·2026
Same journal

Adaptive Dynamics of Quantitative Traits in a Steadily Changing Environment.

Genetics·2026
Same journal

Functional Landscape of Zebrafish Gonadotropins and Receptors: A Comprehensive Genetic Analysis.

Genetics·2026
Same journal

Synergistic actions of Nup43 and Myosin VI drive actin cone assembly during Drosophila spermiogenesis.

Genetics·2026
See all related articles

Fertilization randomness in maize (Zea mays L.) was assessed using allozyme assays. While some genes showed random outcrossing, others indicated non-random fertilization, suggesting complex genetic interactions.

Area of Science:

  • * Plant genetics
  • * Population genetics
  • * Molecular biology

Background:

  • * Understanding fertilization patterns is crucial for plant breeding and genetic diversity.
  • * Maize (Zea mays L.) is a vital crop, and its reproductive biology impacts yield and resilience.
  • * Allozyme assays provide a molecular tool to investigate genetic variation and mating systems.

Purpose of the Study:

  • * To investigate the randomness of fertilization in an open-pollinated maize population.
  • * To estimate the outcrossing rate (t) using mixed-mating models across multiple enzyme loci.
  • * To identify potential causes for deviations from random fertilization, such as pollen selection or temporal variation.

Main Methods:

  • * Allozyme assays were performed on maize seedlings from open-pollinated seeds.

Related Experiment Videos

  • * Seeds were collected from both tasseled (pollen-shedding) and detasseled (pollen-removed) maize plants.
  • * Mixed-mating models were used to estimate outcrossing rates (t) for six enzyme loci (Adh1, Idh2, Got1, Acp1, Prx1, Est4).

    • Main Results:

    • * Four enzyme loci (Adh1, Idh2, Got1, Acp1) showed outcrossing rates not significantly different from 1.00, indicating random fertilization.
    • * Two loci (Prx1 and Est4) exhibited significantly lower outcrossing rates (t < 1.00) on both tasseled and detasseled plants.
    • * Detasseled plants showed an excess of homogametic fertilizations, suggesting non-random pollen sampling or gametophytic selection.
    • * Allelic frequency analyses revealed differential sampling of the outcross pollen pool by maternal plants.
    • * Significant two-, three-, and four-locus interactions were observed among marker loci.

    Conclusions:

    • * Fertilization randomness in maize is locus-specific and influenced by complex genetic interactions.
    • * Non-random fertilization patterns may arise from temporal variation in the pollen pool or gametophytic selection correlated with genotype.
    • * The findings highlight the intricate factors governing mating systems in open-pollinated maize populations.