Genome-wide association study identifies three key loci for high mesocarp oil content in perennial crop oil palm

被引：54

作者：

Teh, Chee-Keng ^{[1
]}

Ong, Ai-Ling ^{[1
]}

Kwong, Qi-Bin ^{[1
]}

Apparow, Sukganah ^{[1
]}

Chew, Fook-Tim ^{[2
]}

Mayes, Sean ^{[3
]}

Mohamed, Mohaimi ^{[1
]}

Appleton, David ^{[1
]}

Kulaveerasingam, Harikrishna ^{[1
]}

机构：

[1] Sime Darby Plantat R&D Ctr, Biotechnol & Breeding Dept, Kuala Lumpur, Malaysia

[2] Natl Univ Singapore, Dept Biol Sci, Singapore 117548, Singapore

[3] Univ Nottingham, Sch Biosci, Nottingham NG7 2RD, England

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

关键词：

QUANTITATIVE TRAIT LOCI; POPULATION-STRUCTURE; AGRONOMIC TRAITS; LINKAGE MAP; SNP; RELATEDNESS;

D O I：

10.1038/srep19075

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

GWAS in out-crossing perennial crops is typically limited by insufficient marker density to account for population diversity and effects of population structure resulting in high false positive rates. The perennial crop oil palm is the most productive oil crop. We performed GWAS for oil-to-dry-mesocarp content (O/DM) on 2,045 genotyped tenera palms using 200K SNPs that were selected based on the short-range linkage disequilibrium distance, which is inherent with long breeding cycles and heterogeneous breeding populations. Eighty loci were significantly associated with O/DM (p = 10-4) and three key signals were found. We then evaluated the progeny of a Deli x AVROS breeding trial and a 4% higher O/DM was observed amongst those having the beneficial genotypes at two of the three key loci (p < 0.05). We have initiated MAS and large-scale planting of elite dura and pisifera parents to generate the new commercial tenera palms with higher O/DM potential.

引用

页数：7

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