Location and transmission of QTL for multiple traits in the pedigree of soybean cultivars

In silico mapping for single trait was extended to analyze many agronomic traits in the pedigree of soybean. 26 agronomic traits were measured and 477 polymorphic markers chosen on public genetic map were genotyped on 14 inbreeding lines in the pedigree of Suinong14. We firstly determined 6 principa...

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Bibliographic Details
Published in:Euphytica 2010-06, Vol.173 (3), p.377-386
Main Authors: Qin, Jun, Yang, RunQing, Liu, ZhangXiong, Zhang, YongFang, Jiang, ChengXi, Li, WenBin, Li, YingHui, Guan, RongXia, Chang, RuZhen, Qiu, LiJuan
Format: Article
Language:English
Subjects:
agronomic traits
Agronomy
Agronomy. Soil science and plant productions
Analysis
Biological and medical sciences
Biomedical and Life Sciences
Biotechnology
chromosome mapping
Cultivars
field crops
Flowers & plants
Fundamental and applied biological sciences. Psychology
Genes
genetic markers
genetic polymorphism
Genetics and breeding of economic plants
genotype
germplasm
Glycine max
in silico mapping
inbred lines
Inbreeding
Life Sciences
linkage groups
pedigree
plant genetic resources
Plant Genetics and Genomics
Plant Pathology
Plant Physiology
Plant Sciences
pleiotropy
principal component analysis
Principal components analysis
Quantitative genetics
quantitative trait loci
Soybean
Soybeans
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Summary:In silico mapping for single trait was extended to analyze many agronomic traits in the pedigree of soybean. 26 agronomic traits were measured and 477 polymorphic markers chosen on public genetic map were genotyped on 14 inbreeding lines in the pedigree of Suinong14. We firstly determined 6 principal components from 26 agronomic traits using the principal component analysis and then constructed 6 “super traits” by the multiplication of the vector of the standardized original traits by the eigenvectors corresponding to the principle components. With in silico mapping, a total of 24 markers distributing on 13 linkage groups were detected separately as QTL responsible for 6 “super traits” and of which 14 QTL performed pleiotrpy. Tracing the transmission of functional genes in the pedigree, it was found that some genes were capable to explain the genetic mechanism for the contribution of exotic germplasms and domestic founders to soybean cultivars in the improvement of the performance and quality.
ISSN:0014-2336
1573-5060
DOI:10.1007/s10681-010-0122-2