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Stability of quantitative trait loci for growth and wood properties across multiple pedigrees and environments in Eucalyptus globulus.
New Phytol. 2013 Jun; 198(4):1121-34.NP

Abstract

· Eucalypts are one of the most planted tree genera worldwide, and there is increasing interest in marker-assisted selection for tree improvement. Implementation of marker-assisted selection requires a knowledge of the stability of quantitative trait loci (QTLs). This study aims to investigate the stability of QTLs for wood properties and growth across contrasting sites and multiple pedigrees of Eucalyptus globulus. · Saturated linkage maps were constructed using 663 genotypes from four separate families, grown at three widely separated sites, and were employed to construct a consensus map. This map was used for QTL analysis of growth, wood density and wood chemical traits, including pulp yield. · Ninety-eight QTLs were identified across families and sites: 87 for wood properties and 11 for growth. These QTLs mapped to 38 discrete regions, some of which co-located with candidate genes. Although 16% of QTLs were verified across different families, 24% of wood property QTLs and 38% of growth QTLs exhibited significant genotype-by-environment interaction. · This study provides the most detailed assessment of the effect of environment and pedigree on QTL detection in the genus. Despite markedly different environments and pedigrees, many QTLs were stable, providing promising targets for the application of marker-assisted selection.

Authors+Show Affiliations

School of Plant Science, National Centre for Future Forest Industries, University of Tasmania, Private Bag 55, Hobart, Tas., 7001, Australia. jules.freeman@utas.edu.auNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23517065

Citation

Freeman, Jules S., et al. "Stability of Quantitative Trait Loci for Growth and Wood Properties Across Multiple Pedigrees and Environments in Eucalyptus Globulus." The New Phytologist, vol. 198, no. 4, 2013, pp. 1121-34.
Freeman JS, Potts BM, Downes GM, et al. Stability of quantitative trait loci for growth and wood properties across multiple pedigrees and environments in Eucalyptus globulus. New Phytol. 2013;198(4):1121-34.
Freeman, J. S., Potts, B. M., Downes, G. M., Pilbeam, D., Thavamanikumar, S., & Vaillancourt, R. E. (2013). Stability of quantitative trait loci for growth and wood properties across multiple pedigrees and environments in Eucalyptus globulus. The New Phytologist, 198(4), 1121-34. https://doi.org/10.1111/nph.12237
Freeman JS, et al. Stability of Quantitative Trait Loci for Growth and Wood Properties Across Multiple Pedigrees and Environments in Eucalyptus Globulus. New Phytol. 2013;198(4):1121-34. PubMed PMID: 23517065.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Stability of quantitative trait loci for growth and wood properties across multiple pedigrees and environments in Eucalyptus globulus. AU - Freeman,Jules S, AU - Potts,Brad M, AU - Downes,Geoffrey M, AU - Pilbeam,David, AU - Thavamanikumar,Saravanan, AU - Vaillancourt,René E, Y1 - 2013/03/20/ PY - 2012/12/19/received PY - 2013/02/14/accepted PY - 2013/3/23/entrez PY - 2013/3/23/pubmed PY - 2013/12/16/medline SP - 1121 EP - 34 JF - The New phytologist JO - New Phytol. VL - 198 IS - 4 N2 - · Eucalypts are one of the most planted tree genera worldwide, and there is increasing interest in marker-assisted selection for tree improvement. Implementation of marker-assisted selection requires a knowledge of the stability of quantitative trait loci (QTLs). This study aims to investigate the stability of QTLs for wood properties and growth across contrasting sites and multiple pedigrees of Eucalyptus globulus. · Saturated linkage maps were constructed using 663 genotypes from four separate families, grown at three widely separated sites, and were employed to construct a consensus map. This map was used for QTL analysis of growth, wood density and wood chemical traits, including pulp yield. · Ninety-eight QTLs were identified across families and sites: 87 for wood properties and 11 for growth. These QTLs mapped to 38 discrete regions, some of which co-located with candidate genes. Although 16% of QTLs were verified across different families, 24% of wood property QTLs and 38% of growth QTLs exhibited significant genotype-by-environment interaction. · This study provides the most detailed assessment of the effect of environment and pedigree on QTL detection in the genus. Despite markedly different environments and pedigrees, many QTLs were stable, providing promising targets for the application of marker-assisted selection. SN - 1469-8137 UR - https://www.unboundmedicine.com/medline/citation/23517065/Stability_of_quantitative_trait_loci_for_growth_and_wood_properties_across_multiple_pedigrees_and_environments_in_Eucalyptus_globulus_ L2 - https://doi.org/10.1111/nph.12237 DB - PRIME DP - Unbound Medicine ER -