Có 20+ tài liệu thuộc chủ đề "Quantitative trait loci"
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QTL mapping of root traits in wheat under different phosphorus levels using. Identification of useful loci for root morphological and P uptake related traits at seedling stage is important for wheat breeding. The most stable QTL QRRS.caas-4DS for ratio of root to shoot dry weight (RRS) harbored the stable genetic region with high phenotypic effect, and QTL clusters on 7A...
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A total of 103 F 7 recombinant inbred lines (RILs) derived from a cross between K099 (short primary root) and Fendou 16 (long primary root) were used to identify QTL for PRL in soybean. Results: QTL analysis using inclusive composite interval mapping method identified a major QTL on Gm16 between SSR markers Sat_165 and Satt621, explaining 30.25 % of the...
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All other QTL are not associated with any of the semen quality traits investigated. Full list of author information is available at the end of the article. Our association studies revealed five recessive QTL for bull fertility. Genomic restricted maximum likeli- hood estimation indicated that the autosomal markers explained of the phenotypic variance in bull fertility.. Due to its large...
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Multi-trait GWAS using imputed high- density genotypes from whole-genome sequencing identifies genes associated with body traits in Nile tilapia. Some of the lead single nucleotide polymorphisms (SNPs) were found within important functional candidate genes previously associated with growth-related traits in other terrestrial species. Conclusions: The high-resolution mtGWAS presented here allowed the identification of significant SNPs, linked to strong functional candidate...
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QTL mapping for soybean (Glycine max L.) leaf chlorophyll-content traits in a. Background: Different soybean (Glycine max L.) leaf chlorophyll-content traits are considered to be significantly linked to soybean yield. In this study, 78 QTLs for soybean leaf chlorophyll-content traits were identified. Conclusions: The detected QTLs and candidate genes may facilitate to gain a better understanding of the hereditary basis...
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Background: Common bean is an important staple crop in the tropics of Africa, Asia and the Americas. Founder haplotypes in the population were identified using Genotyping by Sequencing (GBS). No major population structure was observed in the population. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in...
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Quantitative trait loci (QTLs) have previously been detected from bi-parental mapping populations, giving an overview of the genome regions governing this trait. Results: GWAS identified 62 SNPs significantly associated with frost tolerance and distributed over six of the seven pea linkage groups (LGs). Among the candidate genes highlighted at the identified FD-related loci, the results also encourage further attention to...
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Genome-wide scan for common variants associated with intramuscular fat and moisture content in rainbow trout. Background: Genetic improvement of fillet quality attributes is a priority of the aquaculture industry. Fat and moisture make up about ~ 80% of the tissue weight. The genetic architecture underlying the fat and moisture content of the muscle is still to be fully explored in...
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Genome-wide association study reveals new loci for yield-related traits in Sichuan wheat germplasm under stripe rust stress. Background: As one of the most important food crops in the world, increasing wheat ( Triticum aestivum L.) yield is an urgent task for global food security under the continuous threat of stripe rust (caused by Puccinia striiformis f. Here, we identified loci...
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Conclusion: Integration of meta-QTLs analysis on available phenology related QTLs and data from transcriptomic dataset allowed to strongly reduce the number of candidate genes for the genetic control of the veraison transition, prioritizing a list of 272 genes, among which 78 involved in regulation of gene expression, signal transduction or development.. Full list of author information is available at the...
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High-resolution mapping of quantitative trait loci controlling main floral stalk length in Chinese cabbage ( Brassica rapa L. Background: For spring-type Chinese cabbage production, premature bolting refers to the excessive elongation of dwarf stems before harvesting. Two inbred lines, 06 – 247 and He102, have significant differences in the MFSL. High-density mapping of QTL for the MFSL was performed based...
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Genetic and transcriptomic dissection of the fiber length trait from a cotton. Gossypium hirsutum L.) MAGIC population. Background: Improving cotton fiber length without reducing yield is one of the major goals of cotton breeding.. However, genetic improvement of cotton fiber length by breeding has been a challenge due to the narrow genetic diversity of modern cotton cultivars and negative correlations...
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Dissecting the genetic loci controlling salt tolerance in rice for improving productivity, especially at the flowering stage, remains challenging. Here, we conducted a genome-wide association study (GWAS) of salt tolerance based on exome sequencing of the Thai rice accessions.. LD decay analysis of the panel indicates that the average LD for SNPs at 20 kb distance from each other was...
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Joint QTL mapping and transcriptome sequencing analysis reveal candidate flowering time genes in Brassica napus L. Background: Optimum flowering time is a key agronomic trait in Brassica napus . To investigate the genetic architecture and genetic regulation of flowering time in this important crop, we conducted quantitative trait loci (QTL) analysis of flowering time in a recombinant inbred line (RIL)...
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Consensus map integration and QTL meta- analysis narrowed a locus for yield traits to 0.7 cM and refined a region for late leaf spot resistance traits to 0.38 cM on linkage group A05 in peanut (Arachis hypogaea L.). Background: Many large-effect quantitative trait loci (QTLs) for yield and disease resistance related traits have been identified in different mapping populations of...
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Genetic associations for the CHD phenotypes were evaluated in a linear mixed model using 62,089 SNPs.. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. the OFA screening system is used in the United States and Canada, while most European countries...
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Adaptive selection of founder segments and epistatic control of plant height in the MAGIC winter wheat population WM-800. Results: Genotyping WM-800 with 7849 SNPs revealed a low mean genetic similarity of 59.7% between MAGIC lines. WM-800 harbours distinct genomic regions exposed to segregation distortion. Conclusion: The present study demonstrates that plant height in the MAGIC-WHEAT population WM-800 is mainly determined...
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High-density genetic map construction and quantitative trait loci analysis of the stony hard phenotype in peach based on. Results: In the present study, the linkage map consisted of 1310 single nucleotide polymorphism markers, spanning 454.2 cM, with an average marker distance of 0.347 cM. Conclusion: Thus Prupe.6G150900.1 might play a crucial role in the SH phenotype of peach in which...