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.
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
Features
This publication contains information about 50,018 features:
Feature NameUniquenameType
RosBREEDSNP_SNP_TC_16191177_Lg4_00321_MAF50_MDP0000630319_exon2RosBREEDSNP_SNP_TC_16191177_Lg4_00321_MAF50_MDP0000630319_exon2genetic_marker
AX-105175170AX-105175170genetic_marker
AX-105175171AX-105175171genetic_marker
RosBREEDSNP_SNP_CA_29926704_Lg15_RosCOS1232_MAF50_MDP0000283141_exon1RosBREEDSNP_SNP_CA_29926704_Lg15_RosCOS1232_MAF50_MDP0000283141_exon1genetic_marker
AX-105175173AX-105175173genetic_marker
RosBREEDSNP_SNP_TG_31345666_Lg10_01961_MAF40_1648465_exon3RosBREEDSNP_SNP_TG_31345666_Lg10_01961_MAF40_1648465_exon3genetic_marker
AX-105175175AX-105175175genetic_marker
AX-105175176AX-105175176genetic_marker
AX-105175177AX-105175177genetic_marker
AX-105175178AX-105175178genetic_marker
GDsnp02535GDsnp02535genetic_marker
AX-105175180AX-105175180genetic_marker
AX-105175181AX-105175181genetic_marker
AX-105175182AX-105175182genetic_marker
FB_AFFY_1130365FB_AFFY_1130365genetic_marker
GDsnp00240GDsnp00240genetic_marker
AX-105175185AX-105175185genetic_marker
AX-105175186AX-105175186genetic_marker
AX-105175187AX-105175187genetic_marker
AX-105175188AX-105175188genetic_marker
AX-105175189AX-105175189genetic_marker
GDsnp01480GDsnp01480genetic_marker
AX-105175191AX-105175191genetic_marker
AX-105175192AX-105175192genetic_marker
AX-105175193AX-105175193genetic_marker

Pages

Libraries
This publication contains information about 1 libraries:
Library NameUnique NameOrganism
50K SNP array for apple50K SNP array for appleMalus x domestica
Featuremaps
This publication contains information about 4 maps:
Map Name
Apple-NC-F1
Apple-ZF-F1
Apple-BB-F1
Apple-NCZFBB-consensus
Stocks
This publication contains information about 11 stocks:
Stock NameUniquenameType
NicoreNicorecultivar
NicoterNicotercultivar
Cripps PinkCripps Pinkcultivar
ZariZaricultivar
B3F44B3F44cultivar
B3FS1B3FS1breeding_research_material
Nicoter_x_Cripps PinkNicoter_x_Cripps Pinkpopulation
Zari_x_FujiZari_x_Fujipopulation
B3F44_x_B3FS1B3F44_x_B3FS1population
PRI 517-1PRI 517-1breeding_research_material
Fuji Red Sport Type 2Fuji Red Sport Type 2cultivar