Detection of QTL for apple fruit acidity and sweetness using sensorial evaluation in multiple pedigreed full-sib families

Publication Overview
TitleDetection of QTL for apple fruit acidity and sweetness using sensorial evaluation in multiple pedigreed full-sib families
AuthorsRymenants M, van de Weg E, Auwerkerken A, De Wit I, Czech A, Nijland B, Heuven H, De Storme N, and Keulemans W
TypeJournal Article
Journal NameTree Genetics & Genomes
Volume16
Year2020
Page(s)71
CitationRymenants M, van de Weg E, Auwerkerken A, De Wit I, Czech A, Nijland B, Heuven H, De Storme N, and Keulemans W. Detection of QTL for apple fruit acidity and sweetness using sensorial evaluation in multiple pedigreed full-sib families. Tree Genetics & Genomes 16, 71 (2020). https://doi.org/10.1007/s11295-020-01466-8

Abstract

Acidity and sweetness are important qualities for apple breeders and understanding their genetic regulation can improve the breeding process. In previous QTL studies, fruit quality assessments were performed using instrumental measurements, leading to the identification of two major QTL Ma and Ma3. Here, we use sensorial data to investigate the role of known and unknown genetic factors in the perception of acidity and sweetness in three pedigreed full-sib families. For 2 years, these families were phenotyped by a trained panel, at harvest and after 2 months of cold storage, and genotyped with a new 50 K SNP array. FlexQTLTM analyses using both an additive and an additive + dominance model resulted in the identification of Ma and Ma3 for acidity as well as sweetness, whereas the use of the additive model yielded decisive evidence for the discovery of two additional QTL on LG1 and LG6 for acidity. QTL genotypes were qualified as the inverse of each other, which indicates that individuals with the less-acidity alleles of Ma and Ma3 are perceived sweeter. Due to the genetic configuration in the families studied, resulting from a link with the Pale Green Disorder locus, no incomplete dominance effect could be detected for the Ma locus, although previously reported in the literature. For the Ma3 locus, however, an incomplete dominance effect (58%) is reported here for the first time. The Ma3 locus was also further confined to a 2–4-cM region and a predictive marker for this locus was identified.
Features
This publication contains information about 50,018 features:
Feature NameUniquenameType
AX-105174467AX-105174467genetic_marker
AX-105174468AX-105174468genetic_marker
AX-105174469AX-105174469genetic_marker
AX-105174470AX-105174470genetic_marker
AX-105174471AX-105174471genetic_marker
AX-105174472AX-105174472genetic_marker
RosBREEDSNP_SNP_TC_7581663_Lg8_RosCOS3656_MAF20_1644639_exon1RosBREEDSNP_SNP_TC_7581663_Lg8_RosCOS3656_MAF20_1644639_exon1genetic_marker
AX-105174474AX-105174474genetic_marker
AX-105174475AX-105174475genetic_marker
AX-105174476AX-105174476genetic_marker
AX-105174477AX-105174477genetic_marker
RosBREEDSNP_SNP_CT_7044612_Lg12_159023_MAF20_159023_exon1RosBREEDSNP_SNP_CT_7044612_Lg12_159023_MAF20_159023_exon1genetic_marker
AX-105174479AX-105174479genetic_marker
AX-105174480AX-105174480genetic_marker
AX-105174481AX-105174481genetic_marker
AX-105174482AX-105174482genetic_marker
AX-105174483AX-105174483genetic_marker
AX-105174484AX-105174484genetic_marker
AX-105174485AX-105174485genetic_marker
AX-105174486AX-105174486genetic_marker
AX-105174487AX-105174487genetic_marker
AX-105174488AX-105174488genetic_marker
AX-105174489AX-105174489genetic_marker
AX-105174490AX-105174490genetic_marker
AX-105174491AX-105174491genetic_marker

Pages

Projects
This publication contains information about 2 projects:
Project NameDescription
Apple_Haplotype_Rymenants_2020Haplotype data from Rymenants et al 2020
Apple-fruit_acidity-Rymenants-2020QTL data from Rymenants et al. 2020
Featuremaps
This publication contains information about 4 maps:
Map Name
Apple-NC-F1
Apple-ZF-F1
Apple-BB-F1
Apple-NCZFBB-consensus
Libraries
This publication contains information about 1 libraries:
Library NameUnique NameOrganism
50K SNP array for apple50K SNP array for appleMalus x domestica
Stocks
This publication contains information about 11 stocks:
Stock NameUniquenameType
NicoreNicoreaccession
NicoterNicoteraccession
Cripps PinkCripps Pinkaccession
ZariZariaccession
B3F44B3F44accession
B3FS1B3FS1accession
Nicoter_x_Cripps PinkNicoter_x_Cripps Pinkpopulation
Zari_x_FujiZari_x_Fujipopulation
B3F44_x_B3FS1B3F44_x_B3FS1population
PRI 517-1PRI 517-1accession
Fuji Red Sport Type 2Fuji Red Sport Type 2accession