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Association genetics identifies a specifically regulated Norway spruce laccase gene, PaLAC5, linked to Heterobasidion parviporum resistance

Elfstrand, Malin and Baison, John and Lundén, Karl and Zhou, Linghua and Vos, Ingrid and Capador-Barreto, Hernán Dario and Stein Åslund, Matilda and Chen, Zhiqiang and Chaudhary, Rajiv and Olson, Åke and Wu, Harry (2020). Association genetics identifies a specifically regulated Norway spruce laccase gene, PaLAC5, linked to Heterobasidion parviporum resistance. Plant, Cell and Environment. 43 , 1779-1791
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Abstract

It is important to improve the understanding of the interactions between the trees and pathogens and integrate this knowledge about disease resistance into tree breeding programs. The conifer Norway spruce (Picea abies) is an important species for the forest industry in Europe. Its major pathogen is Heterobasidion parviporum, causing stem and root rot.In this study, we identified 11 Norway spruce QTLs (Quantitative trait loci) that correlate with variation in resistance to H. parviporum in a population of 466 trees by association genetics. Individual QTLs explained between 2.1 and 5.2% of the phenotypic variance. The expression of candidate genes associated with the QTLs was analysed in silico and in response to H. parviporum hypothesizing that (a) candidate genes linked to control of fungal sapwood growth are more commonly expressed in sapwood, and; (b) candidate genes associated with induced defences are respond to H. parviporum inoculation. The Norway spruce laccase PaLAC5 associated with control of lesion length development is likely to be involved in the induced defences. Expression analyses showed that PaLAC5 responds specifically and strongly in close proximity to the H. parviporum inoculation. Thus, PaLAC5 may be associated with the lignosuberized boundary zone formation in bark adjacent to the inoculation site.

Authors/Creators:Elfstrand, Malin and Baison, John and Lundén, Karl and Zhou, Linghua and Vos, Ingrid and Capador-Barreto, Hernán Dario and Stein Åslund, Matilda and Chen, Zhiqiang and Chaudhary, Rajiv and Olson, Åke and Wu, Harry
Title:Association genetics identifies a specifically regulated Norway spruce laccase gene, PaLAC5, linked to Heterobasidion parviporum resistance
Year of publishing :2020
Volume:43
Page range:1779-1791
Number of Pages:13
Publisher:John Wiley & Sons Ltd
ISSN:0140-7791
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
Keywords:genome-wide association study (GWAS), lignosuberized boundary zone, mitochondrion, sapwood, secretory and endosomal trafficking pathways, suberin, TOM40
URN:NBN:urn:nbn:se:slu:epsilon-p-105640
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105640
Additional ID:
Type of IDID
DOI10.1111/pce.13768
Web of Science (WoS)000529193900001
ID Code:17255
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
(S) > Dept. of Forest Mycology and Plant Pathology

(S) > Dept. of Forest Genetics and Plant Physiology
Deposited By: SLUpub Connector
Deposited On:18 Aug 2020 06:38
Metadata Last Modified:18 Aug 2020 06:38

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