Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics

ABSTRACT Breeding programs are often constrained by the genetic diversity of the parental lines, even though these lines can be a rare source of unique alleles not found elsewhere. Therefore, identifying these rare alleles is crucial for keeping them in the breeding programs while introducing new ge...

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Main Authors: Ivana Kaňovská, Jana Biová, Jana Slivková, Kristin Bilyeu, Mária Škrabišová
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Legume Science
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Online Access:https://doi.org/10.1002/leg3.70019
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author Ivana Kaňovská
Jana Biová
Jana Slivková
Kristin Bilyeu
Mária Škrabišová
author_facet Ivana Kaňovská
Jana Biová
Jana Slivková
Kristin Bilyeu
Mária Škrabišová
author_sort Ivana Kaňovská
collection DOAJ
description ABSTRACT Breeding programs are often constrained by the genetic diversity of the parental lines, even though these lines can be a rare source of unique alleles not found elsewhere. Therefore, identifying these rare alleles is crucial for keeping them in the breeding programs while introducing new genetic resources. The growing amount of whole genome sequenced data has made Genome‐wide Association Study (GWAS) dominant in investigations to find causal genes for all crops, including legumes. However, GWAS often fails to predict more than one causative mutation (CM) in multiple alleles of a single causal gene. Consequently, multiple alleles complicate breeding when not recognized by a single associated marker, which typically identifies only the most frequent CM and discriminates against the others. In this work, we focus on adopting recent applied genomics methods to identify multiple independent alleles and rare alleles in soybean as a model for other legumes. We predicted, identified, and confirmed a new and extremely rare CM for the loss of black pigmentation in the soybean seed coat and hilum color R gene, the Q25fs. The deletion of eight bases leads to a frameshift, a premature stop codon, and a truncated, nonfunctional protein. Our results also suggest a possibly new gene or an allele of the seed coat color inhibitor I gene. Using a soybean model, we demonstrate how applied genomics methods can accelerate pre‐breeding, and additionally, we discuss the potential for adopting these methods for application to other legumes.
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spelling doaj-art-c694817e8ffd4bc79e7dabdd278fe97b2025-08-20T02:32:05ZengWileyLegume Science2639-61812024-12-0164n/an/a10.1002/leg3.70019Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied GenomicsIvana Kaňovská0Jana Biová1Jana Slivková2Kristin Bilyeu3Mária Škrabišová4Department of Biochemistry, Faculty of Science Palacký University in Olomouc Olomouc CzechiaDepartment of Biochemistry, Faculty of Science Palacký University in Olomouc Olomouc CzechiaDepartment of Biochemistry, Faculty of Science Palacký University in Olomouc Olomouc CzechiaUnited States Department of Agriculture‐Agricultural Research Service Plant Genetics Research Unit Columbia Missouri USADepartment of Biochemistry, Faculty of Science Palacký University in Olomouc Olomouc CzechiaABSTRACT Breeding programs are often constrained by the genetic diversity of the parental lines, even though these lines can be a rare source of unique alleles not found elsewhere. Therefore, identifying these rare alleles is crucial for keeping them in the breeding programs while introducing new genetic resources. The growing amount of whole genome sequenced data has made Genome‐wide Association Study (GWAS) dominant in investigations to find causal genes for all crops, including legumes. However, GWAS often fails to predict more than one causative mutation (CM) in multiple alleles of a single causal gene. Consequently, multiple alleles complicate breeding when not recognized by a single associated marker, which typically identifies only the most frequent CM and discriminates against the others. In this work, we focus on adopting recent applied genomics methods to identify multiple independent alleles and rare alleles in soybean as a model for other legumes. We predicted, identified, and confirmed a new and extremely rare CM for the loss of black pigmentation in the soybean seed coat and hilum color R gene, the Q25fs. The deletion of eight bases leads to a frameshift, a premature stop codon, and a truncated, nonfunctional protein. Our results also suggest a possibly new gene or an allele of the seed coat color inhibitor I gene. Using a soybean model, we demonstrate how applied genomics methods can accelerate pre‐breeding, and additionally, we discuss the potential for adopting these methods for application to other legumes.https://doi.org/10.1002/leg3.70019genetic diversitygenome‐wide association studieslegume genomicssoybean
spellingShingle Ivana Kaňovská
Jana Biová
Jana Slivková
Kristin Bilyeu
Mária Škrabišová
Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
Legume Science
genetic diversity
genome‐wide association studies
legume genomics
soybean
title Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
title_full Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
title_fullStr Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
title_full_unstemmed Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
title_short Identifying Rare Alleles Affecting Seed Coat and Hilum Color in Soybean (Glycine max) Using Applied Genomics
title_sort identifying rare alleles affecting seed coat and hilum color in soybean glycine max using applied genomics
topic genetic diversity
genome‐wide association studies
legume genomics
soybean
url https://doi.org/10.1002/leg3.70019
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