Locus + QTL Data in MaizeGDB

Simple Locus/QTL Search
Advanced Locus Search
Useful Locus Reports
QTL Research Tools
Nomenclature guidelines
QTL Experiment Browser

All locus types (points, probes, QTL, etc) may be accessed from this center. The QTL at MaizeGDB are a subset of data available to about year 2003; each QTL has an assigned bin (about 10-20 cM resolution), or a bin range and may also be found on the bin viewer. Recently we have begun to integrate published trait values data for germplasm with public genotype data. See also the Diversity Center.

Simple Locus/QTL Search:
This search form allows you to just enter basic name info to quickly retrieve the desired loci or QTL. Use % as a wild card. If no Locus matches are found, this search will attempt to find QTL Experiment and Trait matches. The latter searches can be queried separately below.
(see sample locus query 1, sample 2 ,sample 3)

   

Other interesting searches include dek% (all defective kernel loci), red % (genes that cause red coloration), and qtl* (matches QTL markers).


This search can be executed on every page on the site by utilizing the form in the upper right corner. Choose "locus" from the drop-down menu, enter your search term in the field, and hit return to find the locus you're looking for.


If you are looking up an accession number, please use the sequence search.


Search Results :


Advanced Locus Search

Set Up Search Criteria

Check the boxes next to the fields you want to search; if you just want to find records that have any value for that attribute, check the box and leave the criteria alone. You can use % or * as a wildcard in the text fields.


Show only loci:
with :
of :
with :
:
:
and/or from : (AND)
and/or from : (AND)
and/or from :
with :
that produce :
   
that :
that :
that have known sequences
that have gel pattern evidence
 
   

Search by sequence
Enter sequence, Genbank IDs or gene model names (ZEAMMB73_xxxx or GRMZMxxxxxx): Sample
Nucleotide
Amino acid




Useful Locus Reports


Here are some useful reports that summarize elements of locus data in the database.


Maize Nomenclature Guidelines: Guidelines for naming newly discovered genes.
Gene Symbol List: This is a list of the gene symbols used in the database; use it for your reference and naming needs.
Genes Found in Maize: A complete list of genes found in maize.
Gene Candidates Found in Maize: A complete list of gene candidates found in maize.
Detailed Transgene Summary: A detailed summary report on transgenes in the database.
Detailed Gene Family Summary: A detailed summary report on gene families in the database.


Locus Overview By Chromosome These tables provide a summary of data for the loci on each chromosome.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10



QTL Research Tools

QTL Locus Summary: You can evaluate, sort, and download all of the MaizeGDB QTL loci together in one place.


QTL Data Downloads: We are collecting QTL data files for download. Please contribute!



Simple QTL Experiment Search:

The form below allows you to search quickly through our QTL data for particular QTL experiments. If you'd just like to see a list of these experiments, enter just the wild card character % into the search field.

The above example search lets you find all experiments conducted by Bill Beavis. Other interesting searches include Abler 1991 (shows the series of six Abler QTL experiments from 1991) or Veldbloom (a pair of highly-cited QTL experiments).


This search can be executed from any page on the site by selecting QTL Experiments from the pull-down menu in the upper right and entering your search terms in the field.



Simple Trait Search:

The form below allows you to search quickly through our trait data for particular traits. If you'd just like to see a list of all traits, put just the wild card character % into the search field.

The above example search lets you find all traits related to kernel weight. Other interesting searches include abscisic acid and ATP.


This search can be executed from any page on the site by selecting Traits from the pull-down menu in the upper right and entering your search terms in the field.


QTL Experiment Browser

Set Up Criteria

only QTL experiments that evaluate
only QTL experiments that have generated maps
only QTL experiments that are parented
only QTL experiments with loci that are found in this bin . .

Discussion of Locus Data