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Genetic control of tracheid properties in Norway spruce wood

Baison, John and Zhou, Linghua and Forsberg, Nils and Mörling, Tommy and Grahn, Thomas and Olsson, Lars and Karlsson, Bo and Wu, Harry and Mellerowicz, Ewa and Lundqvist, Sven-Olof and Garcia Gil, Rosario (2020). Genetic control of tracheid properties in Norway spruce wood. Scientific Reports. 10 , 18089
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Abstract

Through the use of genome-wide association studies (GWAS) mapping it is possible to establish the genetic basis of phenotypic trait variation. Our GWAS study presents the first such effort in Norway spruce (Picea abies (L). Karst.) for the traits related to wood tracheid characteristics. The study employed an exome capture genotyping approach that generated 178 101 Single Nucleotide Polymorphisms (SNPs) from 40 018 probes within a population of 517 Norway spruce mother trees. We applied a least absolute shrinkage and selection operator (LASSO) based association mapping method using a functional multi-locus mapping approach, with a stability selection probability method as the hypothesis testing approach to determine significant Quantitative Trait Loci (QTLs). The analysis has provided 30 significant associations, the majority of which show specific expression in wood-forming tissues or high ubiquitous expression, potentially controlling tracheids dimensions, their cell wall thickness and microfibril angle. Among the most promising candidates based on our results and prior information for other species are: Picea abies BIG GRAIN 2 (PabBG2) with a predicted function in auxin transport and sensitivity, and MA_373300g0010 encoding a protein similar to wall-associated receptor kinases, which were both associated with cell wall thickness. The results demonstrate feasibility of GWAS to identify novel candidate genes controlling industrially-relevant tracheid traits in Norway spruce.

Authors/Creators:Baison, John and Zhou, Linghua and Forsberg, Nils and Mörling, Tommy and Grahn, Thomas and Olsson, Lars and Karlsson, Bo and Wu, Harry and Mellerowicz, Ewa and Lundqvist, Sven-Olof and Garcia Gil, Rosario
Title:Genetic control of tracheid properties in Norway spruce wood
Year of publishing :2020
Volume:10
Article number:18089
Number of Pages:13
ISSN:2045-2322
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
URN:NBN:urn:nbn:se:slu:epsilon-p-109055
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109055
Additional ID:
Type of IDID
DOI10.1038/s41598-020-72586-3
ID Code:19456
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Genetics and Plant Physiology
(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:14 Dec 2020 15:43
Metadata Last Modified:15 Jan 2021 19:17

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