Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm

Y. Zulkifli; Rajinder Singh; Ngoot-Chin Ting; Marhalil Marjuni; Xaviar Arulandoo; Rajanaidu Nookiah; J. Jansen; Mohd Din Amiruddin; Meilina Ong Abdullah; T.Y. Chie; Ahmad Kushairi

doi:10.21894/jopr.2020.0019

Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm

Y. Zulkifli^*, Rajinder Singh, Ngoot-Chin Ting, Marhalil Marjuni, Xaviar Arulandoo, Rajanaidu Nookiah, J. Jansen, Mohd Din Amiruddin, Meilina Ong Abdullah, T.Y. Chie, Ahmad Kushairi

^*Corresponding author for this work

Mathematical and Statistical Methods - Biometris

Research output: Contribution to journal › Article › Academic › peer-review

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 (BC2) 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.

Original language	English
Pages (from-to)	201-210
Journal	Journal of Oil Palm Research
Volume	32
Issue number	June
DOIs	https://doi.org/10.21894/jopr.2020.0019
Publication status	Published - Jun 2020

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Zulkifli, Y. ; Singh, Rajinder ; Ting, Ngoot-Chin ; Marjuni, Marhalil ; Arulandoo, Xaviar ; Nookiah, Rajanaidu ; Jansen, J. ; Amiruddin, Mohd Din ; Ong Abdullah, Meilina ; Chie, T.Y. ; Kushairi, Ahmad. / Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm. In: Journal of Oil Palm Research. 2020 ; Vol. 32, No. June. pp. 201-210.

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title = "Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm",

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 (BC2) 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.",

author = "Y. Zulkifli and Rajinder Singh and Ngoot-Chin Ting and Marhalil Marjuni and Xaviar Arulandoo and Rajanaidu Nookiah and J. Jansen and Amiruddin, {Mohd Din} and {Ong Abdullah}, Meilina and T.Y. Chie and Ahmad Kushairi",

year = "2020",

month = jun,

doi = "10.21894/jopr.2020.0019",

language = "English",

volume = "32",

pages = "201--210",

journal = "Journal of Oil Palm Research",

issn = "1511-2780",

number = "June",

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Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm. / Zulkifli, Y.; Singh, Rajinder; Ting, Ngoot-Chin; Marjuni, Marhalil; Arulandoo, Xaviar; Nookiah, Rajanaidu; Jansen, J.; Amiruddin, Mohd Din; Ong Abdullah, Meilina; Chie, T.Y.; Kushairi, Ahmad.

In: Journal of Oil Palm Research, Vol. 32, No. June, 06.2020, p. 201-210.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Quantitative trait loci (QTL) linked to compactness in an interspecific backcross two (BC2) population of oil palm

AU - Zulkifli, Y.

AU - Singh, Rajinder

AU - Ting, Ngoot-Chin

AU - Marjuni, Marhalil

AU - Arulandoo, Xaviar

AU - Nookiah, Rajanaidu

AU - Jansen, J.

AU - Amiruddin, Mohd Din

AU - Ong Abdullah, Meilina

AU - Chie, T.Y.

AU - Kushairi, Ahmad

PY - 2020/6

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AB - 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 (BC2) 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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