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Related Concept Videos

Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
Genome Annotation and Assembly03:36

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Genetic Screens

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.

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Updated: Jul 16, 2026

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Tools and Resources at the Maize Genetics and Genomics Database (MaizeGDB).

Margaret R Woodhouse1, Ethalinda K Cannon2, John L Portwood2

  • 1Agricultural Research Service, United States Department of Agriculture (USDA-ARS), Corn Insects and Crop Genetics Research Unit, Ames, Iowa 50011, USA margaret.woodhouse@usda.gov.

Cold Spring Harbor Protocols
|August 16, 2024
PubMed
Summary

MaizeGDB is a vital resource for maize researchers, providing tools and data for genetics, genomics, and breeding. It supports the study of maize evolution and diversity.

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Area of Science:

  • Plant genetics and genomics
  • Bioinformatics and computational biology
  • Agricultural science

Background:

  • Maize Genetics and Genomics Database (MaizeGDB) serves as a central community resource.
  • It offers essential tools, informatics resources, and curated datasets for maize research.
  • The database supports maize genetics, genomics, and breeding initiatives.

Purpose of the Study:

  • To provide an overview of key MaizeGDB resources.
  • To familiarize users with available options for maize research.
  • To highlight MaizeGDB's role as a central hub for the maize research community.

Main Methods:

  • Review of available MaizeGDB resources.
  • Description of tools for maize genomes, comparative genomics, and pan-genomics.
  • Detailed snapshot of the database's capabilities.

Main Results:

  • MaizeGDB offers comprehensive resources including genome data, comparative genomics tools, and pan-genomics capabilities.
  • The database provides a wide range of options to support diverse maize research needs.
  • It acts as a critical information hub for the global maize research community.

Conclusions:

  • MaizeGDB is indispensable for advancing maize genetics, genomics, and breeding research.
  • Researchers can leverage MaizeGDB's extensive resources to study maize evolution and diversity.
  • The database facilitates collaborative research and accelerates discoveries in maize science.