ArticleBMC genomics2014
An ultra-high density bin-map for rapid QTL mapping for tassel and ear architecture in a large F₂ maize population.
Article in BMC genomics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.
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91 citing papers in PubMed.
- Genetic dissection of grain yield and correlated proxy traits under suboptimal conditions.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Uncovering the genetic basis of crown rust resistance in a northern-by-southern oat biparental population.PloS one · 2026Article
- Identification of yield-related QTLs and their applications using DH population in maize.BMC genomics · 2025Article
- Novel candidate genes and genetic basis analysis of kernel starch content in tropical maize.BMC plant biology · 2025Article
- Dissecting the genetic architecture of yield-related traits by QTL mapping in maize.Frontiers in plant science · 2025Article
- Identification of a novel marker and its associated laccase gene for regulating ear length in tropical and subtropical maize lines.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- An ultra-dense linkage map identified quantitative trait loci corresponding to fruit quality- and size-related traits in red goji berry.Frontiers in plant science · 2024Article
- Deploying QTL-seq rapid identification and separation of the major QTLs of tassel branch number for fine-mapping in advanced maize populations.Molecular breeding : new strategies in plant improvement · 2023Article
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- Increasing aleurone layer number and pericarp yield for elevated nutrient content in maize.G3 (Bethesda, Md.) · 2023Article
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- Identification of QTLs and their candidate genes for the number of maize tassel branches in FFrontiers in plant science · 2023Article
- Identification of salt stress-tolerant candidate genes in the BCFrontiers in plant science · 2023Article
- Identification of quantitative trait loci for related traits of stalk lodging resistance using genome-wide association studies in maize (Zea mays L.).BMC genomic data · 2022Article
- Review
- Genetic Variation inInternational journal of molecular sciences · 2022Article
- Construction of Chromosome Segment Substitution Lines and Inheritance of Seed-Pod Characteristics in Wild Soybean.Frontiers in plant science · 2022Article
- High-resolution quantitative trait locus mapping for rice grain quality traits using genotyping by sequencing.Frontiers in plant science · 2022Article
- Genetic basis of maize kernel protein content revealed by high-density bin mapping using recombinant inbred lines.Frontiers in plant science · 2022Article
- Genetic mapping revealed that theFrontiers in plant science · 2022Article
31 more citing papers are in PubMed but not listed here.
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9 authors.
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Abstract
backgroundUnderstanding genetic control of tassel and ear architecture in maize (Zea mays L. ssp. mays) is important due to their relationship with grain yield. High resolution QTL mapping is critical for understanding the underlying molecular basis of phenotypic variation. Advanced populations, such as recombinant inbred lines, have been broadly adopted for QTL mapping; however, construction of large advanced generation crop populations is time-consuming and costly. The rapidly declining cost of genotyping due to recent advances in next-generation sequencing technologies has generated new possibilities for QTL mapping using large early generation populations.
resultsA set of 708 F2 progeny derived from inbreds Chang7-2 and 787 were generated and genotyped by whole genome low-coverage genotyping-by-sequencing method (average 0.04×). A genetic map containing 6,533 bin-markers was constructed based on the parental SNPs and a sliding-window method, spanning a total genetic distance of 1,396 cM. The high quality and accuracy of this map was validated by the identification of two well-studied genes, r1, a qualitative trait locus for color of silk (chromosome 10) and ba1 for tassel branch number (chromosome 3). Three traits of tassel and ear architecture were evaluated in this population, a total of 10 QTL were detected using a permutation-based-significance threshold, seven of which overlapped with reported QTL. Three genes (GRMZM2G316366, GRMZM2G492156 and GRMZM5G805008) encoding MADS-box domain proteins and a BTB/POZ domain protein were located in the small intervals of qTBN5 and qTBN7 (~800 Kb and 1.6 Mb in length, respectively) and may be involved in patterning of tassel architecture. The small physical intervals of most QTL indicate high-resolution mapping is obtainable with this method.
conclusionsWe constructed an ultra-high-dentisy linkage map for the large early generation population in maize. Our study provides an efficient approach for fast detection of quantitative loci responsible for complex trait variation with high accuracy, thus helping to dissect the underlying molecular basis of phenotypic variation and accelerate improvement of crop breeding in a cost-effective fashion.
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