ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2019
Mapping versatile QTL for soybean downy mildew resistance.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 12 citations in OpenAlex.
- Identification and field validation of QTLs for soybean red crown rot resistance from wild soybean accessions.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- A genome-wide analysis of the USDA Soybean Isoline Collection.The plant genome · 2023Article
- Breeding for disease resistance in soybean: a global perspective.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Review
- DNA marker-assisted evaluation of cooked bean hardness of three soybean progeny lines.Breeding science · 2020Article
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Authors and funding
14 authors at 5 institutions in 2 countries.
Funding
Abstract
key messageThree versatile QTL for soybean downy mildew resistance in Japan were detected using five RIL populations and confirmed using recombinant fixed pairs or a backcrossed line. Downy mildew reduces soybean seed quality and size. It is a problem in Japan, where 90% of soybean grown is used as food. In the USA, 33 downy mildew races have been reported, but race differentiation in Japan is unclear. To identify quantitative trait loci (QTL) for downy mildew resistance effective in the Kanto and Tohoku regions, we performed QTL analysis using five populations of recombinant inbred lines (RILs) originated from 'Natto-shoryu' × 'Tachinagaha' (NT), 'Natto-shoryu' × 'Suzumaru', 'Satonohohoemi' × 'Fukuibuki' (SF), 'Kinusayaka' × 'COL/Akita/2009/TARC/1,' and 'YR-82' × 'Harosoy' over a 4-year period (2014-2017). We evaluated spontaneously developed symptoms of the RILs and applied 112-233 polymorphic markers to each population. Out of 31 QTL detected, we found five on chromosome 3 in three populations and another five on chromosome 7 in three populations. Other QTL were detected in one population, nine of them in different years. In the NT population, two QTL were detected in a 3.0-Mb region on chromosome 7 and in an 8.1-Mb region on chromosome 18 by evaluating nine recombinant fixed pairs in both Kanto and Tohoku regions. In the SF population, a QTL on chromosome 8 was detected in both regions. This QTL was introduced into the 'Satonohohoemi' background by backcrossing, and its effect was confirmed in both regions. In summary, two QTL on chromosomes 7 and 18 from the NT population and one QTL on chromosome 8 from the SF population were confirmed to be effective in both Tohoku and Kanto regions.
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