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Potential of Genome-Wide Association Studies and Genomic Selection to Improve Productivity and Quality of Commercial Timber Species in Tropical Rainforest, a Case Study of Shorea platyclados by Sawitri, ; Tani, Naoki; Naâiem, Mohammad; Widiyatno, ; Indrioko, Sapto; Uchiyama, Kentaro; Suwa, Rempei; Ng, Kevin Kit Siong; Lee, Soon Leong; Tsumura, Yoshihiko is a Environmental Science article available to read on EtoBox.

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Shorea platyclados (Dark Red Meranti) is a commercially important timber tree species in Southeast Asia. However, its stocks have dramatically declined due, inter alia, to excessive logging, insufficient natural regeneration and a slow recovery rate. Thus, there is a need to promote enrichment planting and develop effective technique to support its rehabilitation and improve timber production through implementation of Genome-Wide Association Studies (GWAS) and Genomic Selection (GS). To assist such efforts, plant materials were collected from a half-sib progeny population in Sari Bumi Kusuma forest concession, Kalimantan, Indonesia. Using 5900 markers in sequences obtained from 356 individuals, we detected high linkage disequilibrium (LD) extending up to >145 kb, suggesting that associations between phenotypic traits and markers in LD can be more easily and feasibly detected with GWAS than with analysis of quantitative trait loci (QTLs). However, the detection power of GWAS seems low, since few single nucleotide polymorphisms linked to any focal traits were detected with a stringent false discovery rate, indicating that the species’ phenotypic traits are mostly under polygenic quan

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Author

Sawitri, ; Tani, Naoki; Naâiem, Mohammad; Widiyatno, ; Indrioko, Sapto; Uchiyama, Kentaro; Suwa, Rempei; Ng, Kevin Kit Siong; Lee, Soon Leong; Tsumura, Yoshihiko

Publisher

MDPI AG; MDPI Open Access Publishing; Basel: Multidisciplinary Digital Publishing Institute (MDPI), 2010- (ISSN 1999-4907)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)