Characterization of Select Wild Soybean Accessions in the USDA Germplasm Collection for Seed Composition and Agronomic Traits

Crop Science

Thang La^1¹  Jason D. Gillman^4²  Qijian Song^3³  Earl Taliercio^2⁴  Edward Large^1⁵ 

[1]College of Agriculture, Food & Natural Resources Division of Plant Sciences, Univ. of Missouri, Columbia, MO 65211^1

[2]Dep. of Electrical Engineering and Computer Science and Christopher S. Bond Life Sciences Center, Univ. of Missouri, Columbia, MO 65211^5

[3]USDA-ARS, Plant Genetics Research Unit, Univ. of Missouri, Columbia, MO 65211^4

[4]USDA-ARS, Soybean Genomics and Improvement Lab., Beltsville Agricultural Research Center, Beltsville, MD 20705^3

[5]USDA-ARS, Soybean and Nitrogen Fixation Research Unit, Raleigh, NC 27607^2

关键词: ELSD;    evaporative light scattering detection;    GRIN;    Genetic Resources Information Network;    GWAS;    genome-wide association study;    HPLC;    high-performance liquid chromatography;    LD;    linkage disequilibrium;    MG;    maturity group;    PI;    plant introduction;    QTL;    quantitative trait locus;    SNP;    single nucleotide polymorphism;   

DOI  :  10.2135/cropsci2017.08.0514

学科分类：农业科学（综合）

来源: Crop Science

【 摘 要 】

The relatively low genetic variation of current US soybean [Glycine max (L.) Merr.] cultivars constrains the improvement of grain yield and other agronomic and seed composition traits. Recently, a substantial effort has been undertaken to introduce novel genetic diversity present in wild soybean (Glycine soja Siebold & Zucc.) into elite cultivars, in both public and private breeding programs. The objectives of this research were to evaluate the phenotypic diversity within a collection of 80 G. soja plant introductions (PIs) in the USDA National Genetic Resources Program and to analyze the correlations between agronomic and seed composition traits. Field tests were conducted in Missouri and North Carolina during 3 yr (2013, 2014, and 2015) in a randomized complete block design. The phenotypic data collected included plant maturity date, seed weight, and the seed concentration of protein, oil, essential amino acids, fatty acid, and soluble carbohydrates. We found that genotype was a significant (P G. soja PIs generally had lower seed weight, higher seed contents of protein, linolenic acid, raffinose, and stachyose, and lower seed contents of oil and oleic acid than the cultivated soybean G. max lines. The information and data collected in this study will be invaluable in guiding soybean breeders and geneticists in selecting promising G. soja PIs for research and cultivar improvement.

【 授权许可】

CC BY