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Aligning male and female linkage maps of apple (Malus pumila Mill.) using multi-allelic markers
The high marker density and large number of mapped codominant RFLPs and some microsatellite markers make this map an ideal reference map for use in other progenies also and a valuable tool for the mapping of quantitative trait loci.
Variation for virulence on Brassica napus L. amongst Plasmodiophora brassicae collections from France and derived single‐spore isolates
Variation for virulence was examined amongst 20 field collections of Plasmodiophora brassicae from France and the fractionation of different individual pathotypes from one original spore suspension confirmed the genetic heterogeneity of field populations of P. Brassicae.
The Vh2 and Vh4 scab resistance genes in two differential hosts derived from Russian apple R12740-7A map to the same linkage group of apple
It is shown that the segregation ratios in progenies from the scab differential hosts 2 and 4 that are derived from Russian apple, crossed with susceptible cultivars were consistent with a single gene conditioning resistance in each host, and that the Vh4 gene in host 4 and Vx are the same.
Utilization of pedigree information to estimate genetic parameters from large unbalanced data sets in apple
The software REML VCE took into account the complex pedigree of the French apple-breeding population, thanks to the restricted maximum likelihood procedure combined with the construction of the entire relationship matrix between hybrids planted in the field and their ancestors.
The Vh8 locus of a new gene-for-gene interaction between Venturia inaequalis and the wild apple Malus sieversii is closely linked to the Vh2 locus in Malus pumila R12740-7A.
This research is the first to differentiate scab-resistance genes in a putative gene cluster in apple with the aid of races of V. inaequalis, suggesting the loss or modification of the complementary AvrVh8 gene.
Development and Validation of a 20K Single Nucleotide Polymorphism (SNP) Whole Genome Genotyping Array for Apple (Malus × domestica Borkh)
The newly developed array with its high density of polymorphic validated SNPs is expected to be of great utility for Pedigree-Based Analysis and Genomic Selection, and will also be a valuable tool to help dissect the genetic mechanisms controlling important fruit quality traits.
Estimation of genetic parameters and prediction of breeding values for apple fruit-quality traits using pedigreed plant material in Europe
Genetic parameters for apple (Malus x domestica) fruit external traits and sensory traits (firmness, crispness, texture, juiciness, flavour, sugar, acidity and global taste) were estimated using 2,207 pedigreed genotypes from breeding programmes in six European countries.
Bayesian QTL analyses using pedigreed families of an outcrossing species, with application to fruit firmness in apple
An improved Bayesian multi-QTL pedigree-based approach on an outcrossing species using progenies with different (complex) genetic relationships and implemented in the FlexQTL™ software is presented.
Detecting QTLs and putative candidate genes involved in budbreak and flowering time in an apple multiparental population
Highlight QTLs and candidate genes for the regulation of budbreak and flowering time reveal new hypotheses on temperature perception in growth resumption at spring time in apple.
Genetic dissection of partial resistance to race 6 of Venturia inaequalis in apple.
- C. Durel, L. Parisi, F. Laurens, W. E. van de Weg, R. Liebhard, M. Jourjon
- Biology, MedicineGenome
- 1 April 2003
Several quantitative trait loci (QTLs) for resistance were identified that mapped on four genomic regions and indicated a favourable intra-locus interaction between some parental alleles.