Sangam: A Confluence of Knowledge Streams

Development of Breeder-Friendly KASP Markers for Low Concentration of Kunitz Trypsin Inhibitor in Soybean Seeds

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dc.contributor School of Plant and Environmental Sciences
dc.creator Rosso, M. Luciana
dc.creator Shang, Chao
dc.creator Song, Qijian
dc.creator Escamilla, Diana M.
dc.creator Gillenwater, Jay
dc.creator Zhang, Bo
dc.date 2021-03-15T11:42:35Z
dc.date 2021-03-15T11:42:35Z
dc.date 2021-03-06
dc.date 2021-03-12T14:40:30Z
dc.date.accessioned 2023-02-28T20:50:25Z
dc.date.available 2023-02-28T20:50:25Z
dc.identifier Rosso, M.L.; Shang, C.; Song, Q.; Escamilla, D.; Gillenwater, J.; Zhang, B. Development of Breeder-Friendly KASP Markers for Low Concentration of Kunitz Trypsin Inhibitor in Soybean Seeds. Int. J. Mol. Sci. 2021, 22, 2675.
dc.identifier http://hdl.handle.net/10919/102714
dc.identifier https://doi.org/10.3390/ijms22052675
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/269820
dc.description Trypsin inhibitors (TI), a common anti-nutritional factor in soybean, prevent animals’ protein digestibility reducing animal growth performance. No commercial soybean cultivars with low or null concentration of TI are available. The availability of a high throughput genotyping assay will be beneficial to incorporate the low TI trait into elite breeding lines. The aim of this study is to develop and validate a breeder friendly Kompetitive Allele Specific PCR (KASP) assay linked to low Kunitz trypsin inhibitor (KTI) in soybean seeds. A total of 200 F<sub>3:5</sub> lines derived from PI 547656 (low KTI) X Glenn (normal KTI) were genotyped using the BARCSoySNP6K_v2 Beadchip. F<sub>3:4</sub> and F<sub>3:5</sub> lines were grown in Blacksburg and Orange, Virginia in three years, respectively, and were measured for KTI content using a quantitative HPLC method. We identified three SNP markers tightly linked to the major QTL associated to low KTI in the mapping population. Based on these SNPs, we developed and validated the KASP assays in a set of 93 diverse germplasm accessions. The marker Gm08_44814503 has 86% selection efficiency for the accessions with low KTI and could be used in marker assisted breeding to facilitate the incorporation of low KTI content in soybean seeds.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.subject Kunitz trypsin inhibitor
dc.subject soybean
dc.subject quantitative trait loci
dc.subject anti-nutritional factor
dc.subject single nucleotide polymorphism
dc.subject KASP
dc.title Development of Breeder-Friendly KASP Markers for Low Concentration of Kunitz Trypsin Inhibitor in Soybean Seeds
dc.title International Journal of Molecular Science
dc.type Article - Refereed
dc.type Text
dc.type StillImage


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