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Soybean Parentage Information

The soybean parentage information in this database was partially gleaned from the Uniform Soybean Tests for the Southern and Northern regions as well as other sources such as USDA technical bulletins, variety registrations and PVP applications. The strains that appear here were part of the uniform trials and not the preliminary trials. In most cases, the pedigree of individual strains was followed back to named strains in both maternal and paternal lineages where possible. In some cases, the parentage of strains was not specified by the cooperators in the tests. In those cases the maternal and paternal parents are labeled as "Unspecified". In some cases, the actual parental information is partially or completely unknown. In those cases the unknown parentages is labeled with "Unknown". When available, synonyms for the strains were also collected. If a strain was named its PI number was also included as a synonym. In cases where the strain was found to be covered by PVP protection, the PVP registration number was also included. Because of the sources used, not all named soybean strains are listed. For additional information the user should consult the Germplasm Resources Information Network (GRIN) search page.

Strain names are prefixed with a code that identifies the program that produced them. The code is usually the first two letters in the strain name followed by the year it was released as a two digit number. A description of the code prefixes can be found here. Strains originating from Pioneer Hybrid generally begin with the letter "P" followed by 4 digits ie P2345. Some Pioneer strains have names of the form P followed by two digits followed by one letter followed by two digits ie P49M23.

We welcome submissions by the community of new or updated pedigree information. Please use this data submission Excel spreadsheet to submit your pedigree data.

To find the immediate parents of a line or cultivar, type the cultivar name or strain indentifier in the box below. Reset

To limit the list below to either Northern or Southern strains, choose a region.

Looking for a specific strain or cultivar?Click here to download all parentage information.
Browse the U Section of Alphabetical Strain List
Browse Full Alphabetical List of All Strains

Record for Cultivar Union

CultivarSynonymsMaternal Parent X Paternal ParentCommentGoogle Search (New Window)
Union PI 548622
Williams (5) X SL12Scour Google For This Line

Records Containing Union

CultivarSynonymsMaternal Parent X Paternal ParentComment
Asgrow A3420 PI 556730
Union X Asgrow A3127Monsanto Technology, LLC, PVP 8400149
Asgrow A4271 PI 556731
Asgrow A3860 X UnionMonsanto Technology, LLC, PVP 8400150
C-Union BC PI 548636
Union (8) X ( PI 86972-1 x PI 84637 )PVP 8600046
C1635 Union X Century
C1636 Union X Century
HC80-1742 Union X Gnome
HC81-817 Ransom X Union
K1103 Union X Essex
L77-1233 Union (3) X ( Williams (4) x PI 88788 (2) )
L77-443 Union X L75-8020
L77-515 Union X L75-8020
L79-391O Union X L75-8020
LN78-575 Union X K1028
LS83-5616 PI 572240
Forrest X UnionCV-333
MD79-5043 PI 510670
Union X Miles
Morgan PI 510670
MD79-5043; F4
Union X Miles
Nile PI 572240
Forrest X Union
PI 549098 SS 390
( Union x Asgrow A3127X ( L74L-228 x Asgrow A3127 )Southern States Cooperative, Inc., PVP 9100148
PI 556730 Asgrow A3420
Union X Asgrow A3127Monsanto Technology, LLC, PVP 8400149
PI 556731 Asgrow A4271
Asgrow A3860 X UnionMonsanto Technology, LLC, PVP 8400150
Regal PI 548636
C-Union BC
Union (8) X ( PI 86972-1 x PI 84637 )PVP 8600046
SS 390 PI 549098
( Union x Asgrow A3127X ( L74L-228 x Asgrow A3127 )Southern States Cooperative, Inc., PVP 9100148

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