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Effect of number of...
Effect of number of annual rings and tree ages on genomic predictive ability for solid wood properties of Norway spruce
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- Zhou, Linghua (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology,SLU Swedish University of Agricultural Sciences, Sweden
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- Chen, Zhiqiang (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology,SLU Swedish University of Agricultural Sciences, Sweden
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- Olsson, Lars (författare)
- RISE,Bioekonomi och hälsa
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- Grahn, Thomas (författare)
- RISE,Massa, papper och förpackningar
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- Karlsson, Bo (författare)
- Skogforsk, Sweden
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- Wu, Harry (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology,Beijing Forestry University,Commonwealth Scientific and Industrial Research Organisation (CSIRO),SLU Swedish University of Agricultural Sciences, Sweden; Beijing Forestry University, China; CSIRO, Australia
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- Lundqvist, Sven Olof (författare)
- RISE,Bioekonomi och hälsa,IIC, Sweden
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- Garcia Gil, Rosario (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology,SLU Swedish University of Agricultural Sciences, Sweden
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(creator_code:org_t)
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- 2020-04-25
- 2020
- Engelska.
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Ingår i: BMC Genomics. - : BioMed Central Ltd.. - 1471-2164. ; 21:1
- Relaterad länk:
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https://ri.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Background: Genomic selection (GS) or genomic prediction is considered as a promising approach to accelerate tree breeding and increase genetic gain by shortening breeding cycle, but the efforts to develop routines for operational breeding are so far limited. We investigated the predictive ability (PA) of GS based on 484 progeny trees from 62 half-sib families in Norway spruce (Picea abies (L.) Karst.) for wood density, modulus of elasticity (MOE) and microfibril angle (MFA) measured with SilviScan, as well as for measurements on standing trees by Pilodyn and Hitman instruments. Results: GS predictive abilities were comparable with those based on pedigree-based prediction. Marker-based PAs were generally 25-30% higher for traits density, MFA and MOE measured with SilviScan than for their respective standing tree-based method which measured with Pilodyn and Hitman. Prediction accuracy (PC) of the standing tree-based methods were similar or even higher than increment core-based method. 78-95% of the maximal PAs of density, MFA and MOE obtained from coring to the pith at high age were reached by using data possible to obtain by drilling 3-5 rings towards the pith at tree age 10-12. Conclusions: This study indicates standing tree-based measurements is a cost-effective alternative method for GS. PA of GS methods were comparable with those pedigree-based prediction. The highest PAs were reached with at least 80-90% of the dataset used as training set. Selection for trait density could be conducted at an earlier age than for MFA and MOE. Operational breeding can also be optimized by training the model at an earlier age or using 3 to 5 outermost rings at tree age 10 to 12 years, thereby shortening the cycle and reducing the impact on the tree.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Nyckelord
- annual ring
- Article
- biological trait
- elasticity
- fibril
- genomics
- measurement accuracy
- nonhuman
- Norway spruce
- pedigree
- prediction
- progeny
- tree
- wood
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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