Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC‚‚) population of oil palm


Citation

Zulkifli Y., . and Rajanaidu N., . and M. Ong-Abdullah, . and Kushairi A., . and Xaviar A., . and Ting N. C., . and Rajinder S., . and Chie T. Y., . and Jansen J., . and Marhalil M., . and Mohd Din A., . Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC‚‚) population of oil palm. pp. 201-210. ISSN 1511-2780

Abstract

Conventional quantitative trait loci (QTL) analysis of a mapping family is carried out to generate molecular tools for development of compact interspecific hybrid palms that can be planted more closely for higher yields per unit land area. Genetic maps were constructed for an interspecific backcross two (BC‚‚) oil palm population using single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) markers. A total of 1744 markers were mapped onto 16 linkage groups spanning 1499.5 cM with an average marker interval of 0.86 cM. Using empirical genome and chromosome-wide thresholds QTL analysis yielded a number of significant associations with vegetative characters for palm compactness. Subsequent QTL analysis revealed two major and two putative QTL linked to rachis length and petiole cross-section two important characters for palm compactness. The QTL identified are an important step towards the implementation of marker assisted selection (MAS) enabling breeders to make early informed decisions on improving interspecific hybrids.


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Abstract

Conventional quantitative trait loci (QTL) analysis of a mapping family is carried out to generate molecular tools for development of compact interspecific hybrid palms that can be planted more closely for higher yields per unit land area. Genetic maps were constructed for an interspecific backcross two (BC‚‚) oil palm population using single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) markers. A total of 1744 markers were mapped onto 16 linkage groups spanning 1499.5 cM with an average marker interval of 0.86 cM. Using empirical genome and chromosome-wide thresholds QTL analysis yielded a number of significant associations with vegetative characters for palm compactness. Subsequent QTL analysis revealed two major and two putative QTL linked to rachis length and petiole cross-section two important characters for palm compactness. The QTL identified are an important step towards the implementation of marker assisted selection (MAS) enabling breeders to make early informed decisions on improving interspecific hybrids.

Additional Metadata

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Item Type: Article
AGROVOC Term: Elaeis guineensis
AGROVOC Term: Oil palm
AGROVOC Term: QTL (quantitative trait loci)
AGROVOC Term: Gene mapping
AGROVOC Term: Genotypes
AGROVOC Term: Nucleotides
AGROVOC Term: Polymorphism
AGROVOC Term: genomics
AGROVOC Term: Length
AGROVOC Term: Petioles
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:54
URI: http://webagris.upm.edu.my/id/eprint/9178

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