ArticleBMC plant biology2018
High-resolution genetic linkage map of European pear (Pyrus communis) and QTL fine-mapping of vegetative budbreak time.
Article in BMC plant biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- In Situ GWAS in Two Range-Edge Populations of European Beech (Fagus sylvatica L.) Identify Genetic Factors of Adaptation to Climate Change.Molecular ecology · 2026Article
- Deciphering the genetic mechanisms of chilling requirement for bud endodormancy release in deciduous fruit trees.Molecular breeding : new strategies in plant improvement · 2024Article
- Exploring the wild almond,Tree genetics & genomes · 2024Article
- A self-compatible pear mutant derived from γ-irradiated pollen carries an 11-Mb duplication in chromosome 17.Frontiers in plant science · 2024Article
- Genetic and molecular regulation of chilling requirements in pear: breeding for climate change resilience.Frontiers in plant science · 2024Review
- Marker-Assisted Selection in Breeding for Fruit Trait Improvement: A Review.International journal of molecular sciences · 2023Review
- Pear genetics: Recent advances, new prospects, and a roadmap for the future.Horticulture research · 2022Article
- Genome-wide clonal variability in European pear "Rocha" using high-throughput sequencing.Horticulture research · 2022Article
- Bud endodormancy in deciduous fruit trees: advances and prospects.Horticulture research · 2021Review
- A High-Density Genetic Map Enables Genome Synteny and QTL Mapping of Vegetative Growth and Leaf Traits in Gardenia.Frontiers in genetics · 2021Article
- Revealing the Genetic Components Responsible for the Unique Photosynthetic Stem Capability of the Wild AlmondFrontiers in plant science · 2021Article
- Mapping the Genetic Regions Responsible for Key Phenology-Related Traits in the European Hazelnut.Frontiers in plant science · 2021Article
- A novel high-density grapevine (Vitis vinifera L.) integrated linkage map using GBS in a half-diallel population.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
- Transcriptome analysis and metabolic profiling reveal the key role of α-linolenic acid in dormancy regulation of European pear.Journal of experimental botany · 2019Article
- The persimmon (Horticulture research · 2019Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGenomic analysis technologies can promote efficient fruit tree breeding. Genotyping by sequencing (GBS) enables generating efficient data for high-quality genetic map construction and QTL analysis in a relatively accessible way. Furthermore, High-resolution genetic map construction and accurate QTL detection can significantly narrow down the putative candidate genes associated with important plant traits.
resultsWe genotyped 162 offspring in the F1 'Spadona' x 'Harrow Sweet' pear population using GBS. An additional 21 pear accessions, including the F1 population's parents, from our germplasm collection were subjected to GBS to examine diverse genetic backgrounds that are associated to agriculturally relevant traits and to enhance the power of SNP calling. A standard SNP calling pipeline identified 206,971 SNPs with Asian pear ('Suli') as the reference genome and 148,622 SNPs with the European genome ('Bartlett'). These results enabled constructing a genetic map, after further stringent SNP filtering, consisting of 2036 markers on 17 linkage groups with a length of 1433 cM and an average marker interval of 0.7 cM. We aligned 1030 scaffolds covering a total size of 165.5 Mbp (29%) of the European pear genome to the 17 linkage groups. For high-resolution QTL analysis covering the whole genome, we used phenotyping for vegetative budbreak time in the F1 population. New QTLs associated to vegetative budbreak time were detected on linkage groups 5, 13 and 15. A major QTL on linkage group 8 and an additional QTL on linkage group 9 were confirmed. Due to the significant genotype-by-environment (GxE) effect, we were able to identify novel interaction QTLs on linkage groups 5, 8, 9 and 17. Phenotype-genotype association analysis in the pear accessions for main genotype effect was conducted to support the QTLs detected in the F1 population. Significant markers were detected on every linkage group to which main genotype effect QTLs were mapped.
conclusionsThis is the first vegetative budbreak study of European pear that makes use of high-resolution genetic mapping. These results provide tools for marker-assisted selection and accurate QTL analysis in pear, and specifically at vegetative budbreak, considering the significant GxE and phenotype-plasticity effects.
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