NDLI: High density SNP mapping and QTL analysis for fruit quality characteristics in peach (Prunus persica L.)

Content Provider	Springer Nature Link
Author	Martínez García, Pedro J. Parfitt, Dan E. Ogundiwin, Ebenezer A. Fass, Joseph Chan, Helen M. Ahmad, Riaz Lurie, Susan Dandekar, Abhaya Gradziel, Thomas M. Crisosto, Carlos H.
Copyright Year	2012
Abstract	Single nucleotide polymorphisms (SNPs) were used to construct an integrated SNP linkage map of peach (Prunus persica (L.) Batsch). A set of 1,536 SNPs were evaluated with the GoldenGate® Genotyping assay in two mapping populations, Pop-DF, and Pop-DG. After genotyping and filtering, a final set of 1,400 high quality SNPs in Pop-DF and 962 in Pop-DG with full map coverage were selected and used to construct two linkage maps with JoinMap®4.0. The Pop-DF map covered 422 cM of the peach genome and included 1,037 SNP markers, and Pop-DG map covered 369 cM and included 738 SNPs. A consensus map was constructed with 588 SNP markers placed in eight linkage groups (n = 8 for peach), with map coverage of 454 cM and an average distance of 0.81 cM/marker site. Placements of SNPs on the “peach v1.0” physical map were compared to placement on the linkage maps and several differences were observed. Using the SNP linkage map of Pop-DG and phenotypic data collected for three harvest seasons, a QTL analysis for fruit quality traits and chilling injury symptoms was carried out with the mapped SNPs. Significant QTL effects were detected for mealiness (M) and flesh bleeding (FBL) QTLs on linkage group 4 and flesh browning (FBr) on linkage group 5. This study represents one of the first examples of QTL detection for quality traits and chilling injury symptoms using a high-density SNP map in a single peach F1 family.
Starting Page	19
Ending Page	36
Page Count	18
File Format	PDF
ISSN	16142942
Journal	Tree Genetics & Genomes
Volume Number	9
Issue Number	1
e-ISSN	16142950
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-06-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Single nucleotide polymorphism Prunus Linkage map SNP effects “Lovell” sequence Peach v1.0 Quantitative trait loci Chilling injury symptoms Forestry Plant Genetics & Genomics Plant Breeding/Biotechnology Tree Biology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Genetics Molecular Biology Horticulture Forestry

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