Dissection of chilling requirement and bloom date QTLs in peach using a whole genome sequencing of sibling trees from an F2 mapping population

Publication Overview
TitleDissection of chilling requirement and bloom date QTLs in peach using a whole genome sequencing of sibling trees from an F2 mapping population
AuthorsZhebentyayeva TN, Fan S, Chandra A, Bielenberg DG, Reighard GL, Okie WR, Abbott AG.
TypeJournal Article
Journal NameTree Genetics & Genomes
Volume10
Issue1
Year2014
Page(s)35-51
CitationZhebentyayeva TN, Fan S, Chandra A, Bielenberg DG, Reighard GL, Okie WR, Abbott AG.. Dissection of chilling requirement and bloom date QTLs in peach using a whole genome sequencing of sibling trees from an F2 mapping population. Tree Genetics & Genomes. 2014; 10(1):35-51.

Abstract

Chilling requirement (CR) for floral bud dormancy release is one of the major limiting factors for geographical adaptation of fruiting trees. Using a whole genome sequencing approach (Illumina platform), we explored polymorphism underlying phenotypic differences among individuals in a peach F cross segregating for chilling requirement and bloom date. Allelic configuration of individuals, which represented phenotypic extremes in the cross (300 vs. 1,100 chill hours) allowed reconstruction of low- and high-chill haplotypes within three most significant quantitative trait locus (QTL) intervals on the Prunus G1, G4, and G7. We detected single nucleotide polymorphic sites (SNPs), small deletions and insertions (DIPs), and large structural variants (SVs) associated with low-chill haplotypes and created a prioritized list of candidate genes based on functionally characterized homologs from Arabidopsis thaliana. Two dormancy associated genes PpeDAM5 and PpeDAM6 are the strongest candidate genes for the major QTL signal at the lower end of G1. Also, key functional genes involved in the Polycomb repressive mechanism, cell cycle progression, and hormone regulation were evident as strong candidate genes underlying QTL intervals in this peach cross.
Projects
This publication contains information about 1 projects:
Project NameDescription
Peach chilling requirement and bloom date-Abbott-2013
Features
This publication contains information about 45 features:
Feature NameUniquenameType
chilling requirementqCR.2.CxF-G1d.2008.2014QTL
chilling requirementqCR.2.CxF-G1a.2008.2014QTL
chilling requirementqCR.2.CxF-G4a.2008.2014QTL
chilling requirementqCR.2.CxF-G4b.2008.2014QTL
chilling requirementqCR.2.CxF-G5.2008.2014QTL
chilling requirementqCR.2.CxF-G6.2008.2014QTL
chilling requirementqCR.2.CxF-G7.2008.2014QTL
chilling requirementqCR.2.CxF-G8.2008.2014QTL
chilling requirementqCR.2.CxF-G1d.2009.2014QTL
chilling requirementqCR.2.CxF-G1c.2009.2014QTL
chilling requirementqCR.2.CxF-G1a.2009.2014QTL
chilling requirementqCR.2.CxF-G2.2009.2014QTL
chilling requirementqCR.2.CxF-G4a.2009.2014QTL
chilling requirementqCR.2.CxF-G4b.2009.2014QTL
chilling requirementqCR.2.CxF-G5.2009.2014QTL
chilling requirementqCR.2.CxF-G7.2009.2014QTL
chilling requirementqCR.2.CxF-G8.2009.2014QTL
bloom dateqBD.CxF-G1b.2006.2014QTL
bloom dateqBD.CxF-G1a.2006.2014QTL
bloom dateqBD.CxF-G2.2006.2014QTL
bloom dateqBD.CxF-G4a.2006.2014QTL
bloom dateqBD.CxF-G7a.2006.2014QTL
bloom dateqBD.CxF-G8.2006.2014QTL
bloom dateqBD.CxF-G1c.2007.2014QTL
bloom dateqBD.CxF-G1a.2007.2014QTL

Pages

Featuremaps
This publication contains information about 1 maps:
Map Name
Peach-CF-F2-2014
Properties
Additional details for this publication include:
Property NameValue
URLhttp://link.springer.com/article/10.1007/s11295-013-0660-6