ArticleRice (New York, N.Y.)2021
Identification, pyramid and candidate genes of QTLs for associated traits based on a dense erect panicle rice CSSL-Z749 and five SSSLs, three DSSLs and one TSSL.
Article in Rice (New York, N.Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- QTL identification for yield components using single segment substitution lines dissected by rice CSSL-Z799.Frontiers in plant science · 2026Article
- Genetic dissection of QTL for important agronomic traits and fine-mapping of qGL4 and qGW6 based on a short-width grain rice CSSL-Z691.Frontiers in plant science · 2025Article
- Natural variation in the promoter of qRBG1/OsBZR5 underlies enhanced rice yield.Nature communications · 2024Article
- Mapping and candidate gene analysis of QTLs for grain shape in a rice chromosome segment substitution line Z485 and breeding of SSSLs.Molecular breeding : new strategies in plant improvement · 2024Article
- Development of 12 sets of chromosome segment substitution lines that enhance allele mining in Asian cultivated rice.Breeding science · 2023Article
- Detection of QTLs Regulating Six Agronomic Traits of Rice Based on Chromosome Segment Substitution Lines of Common Wild Rice (Biomolecules · 2022Article
- Identification, pyramid, and candidate gene of QTL for yield-related traits based on rice CSSLs inMolecular breeding : new strategies in plant improvement · 2022Article
- Detecting and pyramiding target QTL for plant- and grain-related traitsFrontiers in plant science · 2022Article
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11 authors.
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Abstract
backgroundSeed-set density is an important agronomic trait in rice. However, its genetic mechanism is complex. Chromosome segment substitution lines (CSSLs) are ideal materials for studying complex traits.
resultsA rice CSSL, Z749, with a dense and erect panicle phenotype, was identified among progeny of the recipient parent Nipponbare and the donor parent Xihui 18. Z749 carried seven substitution segments (average length 2.12 Mb). Compared with Nipponbare, Z749 showed significant increases in the numbers of primary (NPB) and secondary branches (NSB), number of spikelets (SPP) and grains per panicle (GPP), seed-set density (SSD), and decrease in panicle length (PL). A secondary F
conclusionsInheritance of seed-set density in Z749 was controlled predominantly by one major QTL (qSSD10) and two minor QTLs (qSSD5 and qSSD8). Then, they were fine-mapped to intervals of 1.05, 1.46, and 1.53 Mb on chromosomes 10, 5, 8, respectively. Two MAPK genes (OsMPK9 and OsMPK17) and one gene (candidate gene 6) involved in auxin metabolism might be candidate genes for qSSD5, and OsSAUR32 might be the candidate gene for qSSD8. Pyramiding of qSSD5, qSSD8, and qSSD10 enhanced seed-set density.
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