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
AX-105175094AX-105175094genetic_marker
AX-105175095AX-105175095genetic_marker
RosBREEDSNP_SNP_CT_29892800_Lg3_01604_MAF30_45189_exon1RosBREEDSNP_SNP_CT_29892800_Lg3_01604_MAF30_45189_exon1genetic_marker
FB_AFFY_5808265FB_AFFY_5808265genetic_marker
AX-105175098AX-105175098genetic_marker
FB_AFFY_9360659FB_AFFY_9360659genetic_marker
FB_AFFY_7611167FB_AFFY_7611167genetic_marker
AX-105175101AX-105175101genetic_marker
AX-105175102AX-105175102genetic_marker
AX-105175103AX-105175103genetic_marker
RosBREEDSNP_SNP_AG_18517916_Lg4_02277_MAF40_MDP0000317421_exon1RosBREEDSNP_SNP_AG_18517916_Lg4_02277_MAF40_MDP0000317421_exon1genetic_marker
AX-105175105AX-105175105genetic_marker
AX-105175106AX-105175106genetic_marker
RosBREEDSNP_SNP_CA_33896449_Lg2_01349_MAF20_919401_exon1RosBREEDSNP_SNP_CA_33896449_Lg2_01349_MAF20_919401_exon1genetic_marker
AX-105175108AX-105175108genetic_marker
AX-105175109AX-105175109genetic_marker
AX-105175110AX-105175110genetic_marker
AX-105175111AX-105175111genetic_marker
AX-105175112AX-105175112genetic_marker
AX-105175113AX-105175113genetic_marker
AX-105175114AX-105175114genetic_marker
AX-105175115AX-105175115genetic_marker
AX-105175116AX-105175116genetic_marker
RosBREEDSNP_SNP_AG_28848270_Lg6_01574_MAF30_333049_exon1RosBREEDSNP_SNP_AG_28848270_Lg6_01574_MAF30_333049_exon1genetic_marker
AX-105175118AX-105175118genetic_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