Mapping Main-effect and Epistatic QTL for Hard Seededness in Soybean

Ai, Li-Juan; Chen, Qiang; Yang, Chen; Yan, Long; Wang, Fengmin; Ge, Rong-Chao; Zhang, Mengchen

doi:10.3724/sp.j.1006.2018.00852

Cited by 4 publications

(3 citation statements)

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“…They are therefore viable candidate genes for the regulation of seed hardness and useful genetic resources for further research on this important soybean trait. The results will provide new insights into soybean seed hardness for soybean quality improvement. − …”

Section: Discussionmentioning

confidence: 95%

Meta-Analysis and Multiomics of a Chromosome Segment Substitution Line Reveal Candidate Genes Associated with Seed Hardness in Soybean

Wang,

Feng,

et al. 2023

J. Agric. Food Chem.

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Soybean seed hardness is a key trait that influences planting, nutritional quality, and postharvest processing, but its genetic and molecular mechanisms remain to be clarified. We used meta-analysis to detect 17 meta-quantitative trait locus (QTLs) for soybean seed hardness. We then identified a hard-seeded chromosome segment substitution line, R75, with fragments introduced from hard-seeded wild germplasm in four of the meta-QTL intervals. Observations of the seed coat ultrastructure revealed thicker palisade tissue in R75 than in its soft-seeded recurrent parent. Transcriptomics and proteomics of R75 and its recurrent parent revealed multiple candidate genes associated with seed hardness. Fifty-seven were located on homozygous introduced fragments, 26 in meta-QTL intervals, and one in both (Glyma.02G268600). Five initial candidates were selected for KASP marker development on the basis of their predicted functions and nonsynonymous SNPs. The selection efficiency of the markers was as high as 90% for nonhard lines and 43% for hard lines in the chromosome segment substitution line (CSSL) population.

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Section: Discussionmentioning

confidence: 95%

Meta-Analysis and Multiomics of a Chromosome Segment Substitution Line Reveal Candidate Genes Associated with Seed Hardness in Soybean

Wang,

Feng,

et al. 2023

J. Agric. Food Chem.

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“…Using a RIL population developed from a cross between G. max and G. soja, Liu et al, [5] found two HS QTLs on chromosomes 2 and 6, which were consistently detected over 2 years, accounting for more than 42% and 13% of the phenotypic variations, respectively. Based on a RIL population developed from a cross between a permeable soybean cultivar and an impermeable soybean landrace, Ai et al, [83] identified three QTLs for HS on chromosomes 2, 6, and 14, respectively, with a genetic contribution rate of 5.54%-12.94%. Additionally, four pairs of epistatic interaction QTLs were detected on chromosomes 2, 6, 9, 12, and 14, respectively, which explained 2.53%-3.47% of the phenotypic variation.…”

Section: Qtl Mapping Of Hs Trait In Soybeanmentioning

confidence: 99%

Research Advances on the Hard Seededness Trait of Soybean and the Underlying Regulatory Mechanisms

Sun,

Gong

2024

Preprint

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Soybean is one of the world’s most economically significant crops and is widely utilized as an essential source of vegetable protein and edible oil. Cultivated soybean is domesticated from its annual counterpart, wild soybean, which is considered valuable germplasm for soybean breeding. However, wild soybean accessions generally produce seeds with impermeable coats, a trait known as hard seededness (HS), which is beneficial for long-term seed survival but is undesirable for the uniform water absorption and germination of seeds, thus limiting the utilization of wild soybeans in breeding. However, moderate HS can isolate the embryo from the surrounding environment and is thus beneficial for long-term seed storage and germplasm preservation. The HS trait is primarily associated with the structure and chemical composition of the seed coat. However, its development is also influenced by various environmental conditions, such as water and temperature. Genetic analysis has revealed that HS of soybean is a complex quantitative trait controlled by multiple genes or minor quantitative trait loci (QTL), with many QTLs and several causal genes currently identified. Investigating the physiological and molecular mechanisms underlying this trait is crucial for soybean breeding, production, and food processing. For this article, the literature was reviewed and condensed to create a well-rounded picture of the current understanding of internal and external factors, QTLs, causal genes, and the regulatory mechanisms related to the HS of soybean, with the aim of providing reference for future research and utilization of this trait.

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“…(2007) found two HS QTLs on chromosomes 2 and 6, which were consistently detected over 2 years, accounting for more than 42% and 13% of the phenotypic variations, respectively. Based on a RIL population developed from a cross between a permeable soybean cultivar and an impermeable soybean landrace, Ai et al. (2018) identified three QTLs for HS on chromosomes 2, 6, and 14, respectively, with a genetic contribution rate of 5.54%–12.94%.…”

Section: Qtl Mapping Of Hs Trait In Soybeanmentioning

confidence: 99%

Research advances on the hard seededness trait of soybean and the underlying regulatory mechanisms

Sun,

Gong

2024

Front. Plant Sci.

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Soybean is one of the world’s most economically significant crops and is widely utilized as an essential source of vegetable protein and edible oil. Cultivated soybean is domesticated from its annual counterpart, wild soybean, which is considered valuable germplasm for soybean breeding. However, wild soybean accessions generally produce seeds with impermeable coats, a trait known as hard seededness (HS), which is beneficial for long-term seed survival but is undesirable for the uniform water absorption and germination of seeds, thus limiting the utilization of wild soybeans in breeding. In addition, moderate HS can isolate the embryo from the surrounding environment and is thus beneficial for long-term seed storage and germplasm preservation. The HS trait is primarily associated with the structure and chemical composition of the seed coat. Moreover, its development is also influenced by various environmental conditions, such as water and temperature. Genetic analysis has revealed that HS of soybean is a complex quantitative trait controlled by multiple genes or minor quantitative trait loci (QTL), with many QTLs and several causal genes currently identified. Investigating the physiological and molecular mechanisms underlying this trait is crucial for soybean breeding, production, and food processing. For this article, the literature was reviewed and condensed to create a well-rounded picture of the current understanding of internal and external factors, QTLs, causal genes, and the regulatory mechanisms related to the HS of soybean, with the aim of providing reference for future research and utilization of this trait.

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Mapping Main-effect and Epistatic QTL for Hard Seededness in Soybean

Cited by 4 publications

References 0 publications

Meta-Analysis and Multiomics of a Chromosome Segment Substitution Line Reveal Candidate Genes Associated with Seed Hardness in Soybean

Meta-Analysis and Multiomics of a Chromosome Segment Substitution Line Reveal Candidate Genes Associated with Seed Hardness in Soybean

Research Advances on the Hard Seededness Trait of Soybean and the Underlying Regulatory Mechanisms

Research advances on the hard seededness trait of soybean and the underlying regulatory mechanisms

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