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United States Department of Agriculture

Agricultural Research Service

Title: Mapping Flowering Time Gene Homologs in Soybean and Their Association with Maturity (E) Loci

Authors
item Tasma, I - IOWA STATE UNIVERSITY
item Shoemaker, Randy

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 21, 2002
Publication Date: June 17, 2003
Citation: TASMA, I.M., SHOEMAKER, R.C. MAPPING FLOWERING TIME GENE HOMOLOGS IN SOYBEAN AND THEIR ASSOCIATION WITH MATURITY (E) LOCI. CROP SCIENCE. 2003. v. 43. p. 319-328.

Interpretive Summary: When and how a crop plant flowers, produces seed, and matures is very important to agriculture. Day length is an important trigger controlling these characters. Some soybeans respond to day length and some do not. Because soybean is a major agronomic seed crop it would be beneficial to understand the mechanisms that control flowering and maturity. Using computer databases, the authors identified 18 genes that affect flowering, recognition of day length, and maturity in other plants. They then mapped 10 of the genes onto the soybean genetic road map to see if their location corresponded to regions thought to be control flowering and maturity. They tested the genes using specially constructed soybean lines to see if any of the genes were associated with any of 7 known maturity genes. One gene, FCA, from Arabidopsis, corresponded to soybean maturity gene E3. This information is important to geneticists and physiologists because it begins sto dissect a very important biochemical process in soybean that impacts th geographic range in which we can grow soybean.

Technical Abstract:

Last Modified: 7/24/2014
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