ArticleBMC plant biology2013
A candidate gene based approach validates Md-PG1 as the main responsible for a QTL impacting fruit texture in apple (Malus x domestica Borkh).
Article in BMC plant biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed, 92 citations in OpenAlex.
- Advances in Cell Wall Dynamics and Gene Expression in Postharvest Fruit Softening.Plants (Basel, Switzerland) · 2025Review
- Natural variation in MdNAC5 contributes to fruit firmness and ripening divergence in apple.Horticulture research · 2025Article
- Article
- Development and application of Key Allele-Specific PCR (KASP) molecular markers for assessing apple fruit crispness.Molecular breeding : new strategies in plant improvement · 2024Article
- Rapid and easy construction of a simplified amplicon sequencing (simplified AmpSeq) library for marker-assisted selection.Scientific reports · 2023Article
- Promoter Variation of the Key Apple Fruit Texture Related GenePlants (Basel, Switzerland) · 2023Article
- Deducing genotypes for loci of interest from SNP array data via haplotype sharing, demonstrated for apple and cherry.PloS one · 2023Article
- A single QTL harboring multiple genetic variations leads to complicated phenotypic segregation in apple flesh firmness and crispness.Plant cell reports · 2022Article
- Transcriptome profiling of genes associated with fruit firmness in the melon variety 'Baogua' (Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Article
- Characterization of the genetic and regulatory networks associated with sugar and acid metabolism in applesFrontiers in plant science · 2022Article
- Research Progress on Genetic Basis of Fruit Quality Traits in Apple (Frontiers in plant science · 2022Review
- Construction of a high-density genetic linkage map and QTL analysis of morphological traits in an F1Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Article
- Role of MdERF3 and MdERF118 natural variations in apple flesh firmness/crispness retainability and development of QTL-based genomics-assisted prediction.Plant biotechnology journal · 2021Article
- Natural variations in a pectin acetylesterase gene, MdPAE10, contribute to prolonged apple fruit shelf life.The plant genome · 2021Article
- Trends in Fruit Quality Improvement From 15 Years of Selection in the Apple Breeding Program of Washington State University.Frontiers in plant science · 2021Article
- Phased diploid genome assemblies and pan-genomes provide insights into the genetic history of apple domestication.Nature genetics · 2020Article
- Candidate gene mapping identifies genomic variations in the fire blight susceptibility genes HIPM and DIPM across the Malus germplasm.Scientific reports · 2020Article
- An irregularly striped rind mutant reveals new insight into the function of PG1β in cucumber (Cucumis sativus L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Genomic prediction of fruit texture and training population optimization towards the application of genomic selection in apple.Horticulture research · 2020Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundApple is a widely cultivated fruit crop for its quality properties and extended storability. Among the several quality factors, texture is the most important and appreciated, and within the apple variety panorama the cortex texture shows a broad range of variability. Anatomically these variations depend on degradation events occurring in both fruit primary cell wall and middle lamella. This physiological process is regulated by an enzymatic network generally encoded by large gene families, among which polygalacturonase is devoted to the depolymerization of pectin. In apple, Md-PG1, a key gene belonging to the polygalacturonase gene family, was mapped on chromosome 10 and co-localized within the statistical interval of a major hot spot QTL associated to several fruit texture sub-phenotypes.
resultsIn this work, a QTL corresponding to the position of Md-PG1 was validated and new functional alleles associated to the fruit texture properties in 77 apple cultivars were discovered. 38 SNPs genotyped by gene full length resequencing and 2 SSR markers ad hoc targeted in the gene metacontig were employed. Out of this SNP set, eleven were used to define three significant haplotypes statistically associated to several texture components. The impact of Md-PG1 in the fruit cell wall disassembly was further confirmed by the cortex structure electron microscope scanning in two apple varieties characterized by opposite texture performance, such as 'Golden Delicious' and 'Granny Smith'.
conclusionsThe results here presented step forward into the genetic dissection of fruit texture in apple. This new set of haplotypes, and microsatellite alleles, can represent a valuable toolbox for a more efficient parental selection as well as the identification of new apple accessions distinguished by superior fruit quality features.
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