title: A consensus linkage map of oil palm and a major QTL for stem height.
abstract: Oil palm (Elaeis guinensis Jacquin) is the most important source of vegetable oil and fat. Several linkage maps had been constructed using dominant and co-dominant markers to facilitate mapping of QTL. However, dominant markers are not easily transferable among different laboratories. We constructed a consensus linkage map for oil palm using co-dominant markers (i.e. microsatellite and SNPs) and two F1 breeding populations generated by crossing Dura and Pisifera individuals. Four hundreds and forty-four microsatellites and 36 SNPs were mapped onto 16 linkage groups. The map length was 1565.6 cM, with an average marker space of 3.72 cM. A genome-wide scan of QTL identified a major QTL for stem height on the linkage group 5, which explained 51% of the phenotypic variation. Genes in the QTL were predicted using the palm genome sequence and bioinformatic tools. The linkage map supplies a base for mapping QTL for accelerating the genetic improvement, and will be also useful in the improvement of the assembly of the genome sequences. Markers linked to the QTL may be used in selecting dwarf trees. Genes within the QTL will be characterized to understand the mechanisms underlying dwarfing.
authors: Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore.
authors: May
authors: M
authors: Lee
authors: Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore.
authors: Jun Hong
authors: JH
authors: Xia
authors: Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore.
authors: Zhongwei
authors: Z
authors: Zou
authors: Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore.
authors: Jian
authors: J
authors: Ye
authors: R &D Department, Wilmar International Plantation, Palembang, Indonesia.
authors: Rahmadsyah
authors: Biotech Lab, Wilmar International, Jakarta, Indonesia.
authors: Yuzer
authors: Y
authors: Alfiko
authors: 1] Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore [2] School of Computing, National University of Singapore, Singapore.
authors: Jingjing
authors: J
authors: Jin
authors: Biotech Lab, Wilmar International, Jakarta, Indonesia.
authors: Jessica Virginia
authors: JV
authors: Lieando
authors: Biotech Lab, Wilmar International, Jakarta, Indonesia.
authors: Maria Indah
authors: MI
authors: Purnamasari
authors: R &D Department, Wilmar International Plantation, Palembang, Indonesia.
authors: Chin Huat
authors: CH
authors: Lim
authors: Biotech Lab, Wilmar International, Jakarta, Indonesia.
authors: Antonius
authors: A
authors: Suwanto
authors: School of Computing, National University of Singapore, Singapore.
authors: Limsoon
authors: L
authors: Wong
authors: 1] Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore [2] Laboratory of Plant Molecular Biology, The Rockefeller University, New York, USA.
authors: Nam-Hai
authors: NH
authors: Chua
authors: 1] Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore [2] Department of Biological Sciences, National University of Singapore, Singapore.
authors: Gen Hua
authors: GH
authors: Yue
mesh_terms: D028023:Arecaceae / Q000235:genetics*; D002874:Chromosome Mapping; D017343:Genes, Plant; D008040:Genetic Linkage; D060005:Genotyping Techniques; D018895:Microsatellite Repeats; D020641:Polymorphism, Single Nucleotide; D040641:Quantitative Trait Loci; D019655:Quantitative Trait, Heritable
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