نتایج جستجو برای: نقشهیابی qtl

تعداد نتایج: 8581  

Journal: :Genetics 2008
Jian Yang Weiren Wu Jun Zhu

Under a hypothesis that the host-parasite interaction system is governed by genome-for-genome interaction, we propose a genetic model that integrates genetic information from both the host and parasite genomes. The model can be used for mapping quantitative trait loci (QTL) conferring the interaction between host and parasite and detecting interactions among these QTL. A one-dimensional genome-...

Journal: :Frontiers in plant science 2015
Amit Gur Dani Zamir

Molecular markers allowed breeders to mendelize quantitative trait loci (QTL) providing another demonstration that quantitative traits are governed by the same principles as single qualitative genes. This research extends the QTL analysis to two and three QTL and tests our ability to mendelize an oligogenic trait. In tomato, agricultural yield is determined by the weight of the fruits harvested...

2015
Ying Fu Dayong Wei Hongli Dong Yajun He Yixin Cui Jiaqin Mei Huafang Wan Jiana Li Rod Snowdon Wolfgang Friedt Xiaorong Li Wei Qian

Silique length (SL) and seed weight (SW) are important yield-associated traits in rapeseed (Brassica napus). Although many quantitative trait loci (QTL) for SL and SW have been identified in B. napus, comparative analysis for those QTL is seldom performed. In the present study, 20 and 21 QTL for SL and SW were identified in doubled haploid (DH) and DH-derived reconstructed F2 populations in rap...

2016
Xinyao He Morten Lillemo Jianrong Shi Jirong Wu Åsmund Bjørnstad Tatiana Belova Susanne Dreisigacker Etienne Duveiller Pawan Singh

Fusarium head blight (FHB) resistant line Soru#1 was hybridized with the German cultivar Naxos to generate 131 recombinant inbred lines for QTL mapping. The population was phenotyped for FHB and associated traits in spray inoculated experiments in El Batán (Mexico), spawn inoculated experiments in Ås (Norway) and point inoculated experiments in Nanjing (China), with two field trials at each loc...

2018
Giacomo Mangini Agata Gadaleta Pasqualina Colasuonno Ilaria Marcotuli Antonio M Signorile Rosanna Simeone Pasquale De Vita Anna M Mastrangelo Giovanni Laidò Nicola Pecchioni Antonio Blanco

Increasing grain yield potential in wheat has been a major target of most breeding programs. Genetic advance has been frequently hindered by negative correlations among yield components that have been often observed in segregant populations and germplasm collections. A tetraploid wheat collection was evaluated in seven environments and genotyped with a 90K SNP assay to identify major and stable...

2013
J. Erron Haggard Emily B. Johnson Dina A. St. Clair

When the allele of a wild species at a quantitative trait locus (QTL) conferring a desirable trait is introduced into cultivated species, undesirable effects on other traits may occur. These negative phenotypic effects may result from the presence of wild alleles at other closely linked loci that are transferred along with the desired QTL allele (i.e., linkage drag) and/or from pleiotropic effe...

Journal: :BMC Proceedings 2009
Joaquim Tarres François Guillaume Sébastien Fritz

BACKGROUND Dense marker maps require efficient statistical methods for QTL fine mapping that work fast and efficiently with a large number of markers. In this study, the simulated dataset for the XIIth QTLMAS workshop was analyzed using a QTL fine mapping set of tools. METHODS The QTL fine-mapping strategy was based on the use of statistical methods combining linkage and linkage disequilibriu...

Journal: :Journal of dairy science 2003
S M Viitala N F Schulman D J de Koning K Elo R Kinos A Virta J Virta A Mäki-Tanila J H Vilkki

A whole genome scan of Finnish Ayrshire was conducted to map quantitative trait loci (QTL) affecting milk production. The analysis included 12 half-sib families containing a total of 494 bulls in a granddaughter design. The families were genotyped with 150 markers to construct a 2764 cM (Haldane) male linkage map. In this study interval mapping with multiple-marker regression approach was exten...

2017
Renato C. C. Vasconcellos O. Blessing Oraguzie Alvaro Soler Haidar Arkwazee James R. Myers Juan J. Ferreira Qijian Song Phil McClean Phillip N. Miklas

White mold, caused by the fungus Sclerotinia sclerotiorum (Lib.) de Bary, is a major disease that limits common bean production and quality worldwide. The host-pathogen interaction is complex, with partial resistance in the host inherited as a quantitative trait with low to moderate heritability. Our objective was to identify meta-QTL conditioning partial resistance to white mold from individua...

Journal: :Animal genetics 2008
C Duthie G Simm A Doeschl-Wilson E Kalm P W Knap R Roehe

In this study, quantitative trait loci (QTL) for chemical and physical body composition, growth and feed intake in pigs were identified in a three-generation full-sib population, developed by crossing Pietrain sires with a commercial dam line. Phenotypic data from 315 F(2) animals were available for protein and lipid deposition measured in live animals by the deuterium dilution technique at 30-...

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