Mapping developmental QTL for plant height in soybean [Glycine max (L.) Merr.] using a four-way recombinant inbred line population

Plant height (PH) is an important trait in soybean, as taller plants may have higher yields but may also be at risk for lodging. Many genes act jointly to influence PH throughout development. To map the quantitative trait loci (QTL) controlling PH, we used the unconditional variable method (UVM) and...

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Bibliographic Details
Published in:PloS one 2019-11, Vol.14 (11), p.e0224897-e0224897
Main Authors: Xue, Hong, Tian, Xiaocui, Zhang, Kaixin, Li, Wenbin, Qi, Zhongying, Fang, Yanlong, Li, Xiyu, Wang, Yue, Song, Jie, Li, Wen-Xia, Ning, Hailong
Format: Article
Language:English
Subjects:
Agriculture
Analysis
Analysis of Variance
Biology
Biology and Life Sciences
Breeding
Chromosome Mapping
Corn
Crop science
Developmental stages
Education
Gene expression
Gene mapping
Genes
Genetic diversity
Genetic Linkage
Genetics
Genetics, Population
Glycine max - anatomy & histology
Glycine max - genetics
Glycine max - growth & development
Inbreeding
Inheritance Patterns - genetics
Laboratories
Lodging
Mapping
Novels
Phenotype
Phenotypic variations
Population
Proteins
Quantitative genetics
Quantitative trait loci
Quantitative Trait Loci - genetics
Recombination, Genetic - genetics
Research and Analysis Methods
Rice
Soybeans
Time Factors
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Summary:Plant height (PH) is an important trait in soybean, as taller plants may have higher yields but may also be at risk for lodging. Many genes act jointly to influence PH throughout development. To map the quantitative trait loci (QTL) controlling PH, we used the unconditional variable method (UVM) and conditional variable method (CVM) to analyze PH data for a four-way recombinant inbred line (FW-RIL) population derived from the cross of (Kenfeng14 × Kenfeng15) × (Heinong48 × Kenfeng19). We identified 7, 8, 16, 19, 15, 27, 17, 27, 22, and 24 QTL associated with PH at 10 developmental stages, respectively. These QTL mapped to 95 genomic regions. Among these QTL, 9 were detected using UVM and CVM, and 89 and 66 were only detected by UVM or CVM, respectively. In total, 36 QTL controlling PH were detected at multiple developmental stages and these made unequal contributions to genetic variation throughout development. Among 19 novel regions discovered in our study, 7 could explain over 10% of the phenotypic variation and contained only one single QTL. The unconditional and conditional QTL detected here could be used in molecular design breeding across the whole developmental procedure.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0224897