Genetic diversity in a soybean collection
2009
A:PS
Details
Title
Genetic diversity in a soybean collection
Publication Date
2009
Call Number
A:PS
Summary
Soybean [Glycine max (L.) Merr.] was domesti... cated in China, and cultivated landraces were initially distributed throughout Asia and more recently extended to Europe and America. Previous studies of genetic diversity suggest a strong genetic bottleneck between Asian and North American soybean genetic pools. How... ever, little is known about the potentially useful genetic diversity present in European soybean germplasm. We evaluated genetic diversity by phenotypic characterization and by compar;. ing nuclear and cytoplasmic microsateUites In 301 genotypes of anlNRA soybean collection with those of 31 European breeding lines and 17 ancestors from American cultivars (representing 83% of the North America diversity). We showed thatthelNRA collection contains 14 and 8% more diversity than the European breeding lines and American ancestors, respectively, based on Nei diversity (He). The genetic structure of this INRA collection does not correlate with either geographic origin or phenotypic differentiation. We generated a core collection composed of 50 accessions from the INRA collection and European breeding lines. This core collection con... tains 203 of the 226 microsatellite marker alleles available for this germplasm and is also repre;. sentative of the diversity of morphological traits in temperate regions (maturity 000 toll!), whIch will be useful for future breeding programs.
Journal Citation
v.49(3):895-902, CROP SCIENCE
Contact Information
harvest@worldveg.org
Record Appears in
Research > Published Articles