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Detection of QTL and QTN and candidate genes for oil content in soybean using a combination of four-way-RIL and germplasm populations
- Source :
- Crop Journal, Vol 8, Iss 5, Pp 802-811 (2020)
- Publication Year :
- 2020
- Publisher :
- KeAi Communications Co., Ltd., 2020.
-
Abstract
- Soybean is a source of edible oil for humans and provides a third of the vegetable oil consumed worldwide. Increasing seed oil content in seeds is thus a key objective in soybean breeding. In the present study, a four-way recombinant inbred line (FW-RIL) population comprising 144 lines, planted in 10 environments, and a germplasm panel of 455 accessions, planted in two environments, were used to collect oil-content phenotypes. First, 59 quantitative trait loci (QTL) were detected in the FW-RIL population by inclusive complete interval mapping on a linkage map consisting of 2232 single-nucleotide polymorphism (SNP) markers. Also in the FW-RILs, 44 quantitative trait nucleotides (QTNs) were detected by association analysis using 109,676 SNP markers and five methods of multi-locus genome-wide association study. Second, 77 QTN were detected by association analysis in the germplasm panel using 63,306 markers. Comparison of the QTL and QTN suggested four QTN controlling oil content. Pathway analysis was performed on genes in attenuation regions of these four QTN, and two candidate genes involved in the synthesis or metabolism of soybean oil were identified. These findings provide useful information about the genetics of oil content and may contribute to its genetic improvement by marker-assisted selection.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Germplasm
Candidate gene
food.ingredient
Population
Oil content
Four-way recombinant inbred line
Plant Science
Quantitative trait locus
Biology
Association analysis
01 natural sciences
Soybean oil
lcsh:Agriculture
03 medical and health sciences
food
Genetic linkage
lcsh:Agriculture (General)
education
Genetic association
Genetics
education.field_of_study
lcsh:S
food and beverages
lcsh:S1-972
030104 developmental biology
Vegetable oil
Soybean
Agronomy and Crop Science
Linkage analysis
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 22145141
- Volume :
- 8
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Crop Journal
- Accession number :
- edsair.doi.dedup.....7860fbf3d4be5681b80c232a714f4572