NDLI: A consensus linkage map identifies genomic regions controlling fruit maturity and beta-carotene-associated flesh color in melon (Cucumis melo L.)

Content Provider	Springer Nature Link
Author	Cuevas, H. E. Staub, J. E. Simon, P. W. Zalapa, J. E.
Copyright Year	2009
Abstract	The nutritional value and yield potential of US Western Shipping melon (USWS; Cucumis melo L.) could be improved through the introgression of genes for early fruit maturity (FM) and the enhancement of the quantity of β-carotene (QβC) in fruit mesocarp (i.e., flesh color). Therefore, a set of 116 F3 families derived from the monoecious, early FM Chinese line ‘Q 3-2-2’ (no β-carotene, white mesocarp) and the andromonoecious, late FM USWS line ‘Top Mark’ (possessing β-carotene, orange mesocarp) were examined during 2 years in Wisconsin, USA to identify quantitative trait loci (QTL) associated with FM and QβC. A 171-point F2–3 based map was constructed and used for QTL analysis. Three QTL associated with QβC were detected, which explained a significant portion of the observed phenotypic variation (flesh color; R 2 = 4.0–50.0%). The map position of one QTL (β-carM.E.9.1) was uniformly aligned with one carotenoid-related gene (Orange gene), suggesting its likely role in QβC in this melon population and putative relationship with the melon white flesh (wf) gene. Two major (FM.6.1 and FM.11.1; R 2 ≥ 20%) and one minor QTL (FM.2.1; R 2 = 8%) were found to be associated with FM. This map was then merged with a previous recombinant inbred line (RIL)-based map used to identify seven QTL associated with QβC in melon fruit. This consensus map [300 molecular markers (187 co-dominant melon and 14 interspecific; 10 LG)] provides a framework for the further dissection and cloning of published QTL, which will consequently lead to more effective trait introgression in melon.
Starting Page	741
Ending Page	756
Page Count	16
File Format	PDF
ISSN	00405752
Journal	Theoretical and Applied Genetics
Volume Number	119
Issue Number	4
e-ISSN	14322242
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-06-24
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biotechnology Biochemistry Plant Biochemistry Agriculture Plant Genetics & Genomics Plant Breeding/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biotechnology Agronomy and Crop Science

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Mapping of genetic loci that regulate quantity of beta-carotene in fruit of US Western Shipping melon (Cucumis melo L.)

Inheritance of beta-carotene-associated mesocarp color and fruit maturity of melon (Cucumis melo L.)

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A consensus linkage map identifies genomic regions controlling fruit maturity and beta-carotene-associated flesh color in melon (Cucumis melo L.)

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