Identification of Quantitative Trait Loci (QTLs) for Fruit Quality Traits in Apple

A segregating mapping population of “Co-op 17” × “Co-op 16” was used to identify quantitative trait loci (QTLs) associated with various fruit quality traits in apple. Phenotypic data were collected over 2 years for fruit circumference (in centimeter), diameter at midpoint (in centimeter), length (in...

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Bibliographic Details
Published in:Plant molecular biology reporter 2014-02, Vol.32 (1), p.109-116
Main Authors: Potts, Sarah M., Khan, M. Awais, Han, Yuepeng, Kushad, Mosbah M., Korban, Schuyler S.
Format: Article
Language:English
Subjects:
Bioinformatics
Biomedical and Life Sciences
Fruits
Gene mapping
Life Sciences
Metabolomics
Original Paper
Phenotypic variations
Plant biology
Plant Breeding/Biotechnology
Plant Sciences
Proteomics
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Summary:A segregating mapping population of “Co-op 17” × “Co-op 16” was used to identify quantitative trait loci (QTLs) associated with various fruit quality traits in apple. Phenotypic data were collected over 2 years for fruit circumference (in centimeter), diameter at midpoint (in centimeter), length (in centimeter), weight (in gram), total soluble solids (in degree Brix), and total titratable acids (in percent) for the segregating population. The phenotypic data along with a previously constructed genetic map, based on simple sequence repeat markers derived from expressed sequence tag and bacterial artificial chromosome end sequence databases, were used in marker–trait association analysis. Interval mapping identified two QTLs linked to fruit size components on linkage groups 03 and 05 with limit of detection scores of 3.27–4.06 and 3.29–4.02 along with phenotypic variation accounting for 15.4–46.4 and 18.3–21.9 %, respectively.
ISSN:0735-9640
1572-9818
DOI:10.1007/s11105-013-0634-8