Genetic parameters for wood quality traits and resistance to the pathogens Heterobasidion parviporum and Endoconidiophora polonica in a Norway spruce breeding population

Steffenrem, Arne; Solheim, Halvor; Skrøppa, Tore

doi:10.1007/s10342-016-0975-6

Cited by 30 publications

(22 citation statements)

References 35 publications

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“…This approach has been commonly used in crops [Casler, 1982, Fernandez and J. C. Miller, 1985, Vogel et al, 1980]. More recently, it has also been applied for wood quality traits (wood density and spiral grain) in Norway spruce [Steffenrem et al, 2016]. The author reported similar heritabilities and standard errors for both methods of narrow-sense heritability computing, parent-offspring regression and progeny data.…”

Section: Discussionmentioning

confidence: 99%

Genetic analysis using parent-progeny relationship for wood quality traits in Norway spruce (Picea abies (L.) Karst.)

Zhou

Chen

Lindqvist³

et al. 2018

Preprint

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1 Two-generations pedigree involving 524 plus trees and their open-pollinated (OP) 2 progenies were jointly studied to estimate parent-progeny correlation and heritabil-3 ity. Three wood traits (wood density, MFA, and MOE) were determined by SilviS-4 can in one ramet per plus tree and 12 OP progenies. Three ramets per plus tree and 5 12 OP were also measured with two indirect methods, Pilodyn and Hitman. The 6 overall correlation between OP-based breeding values and plus tree-based pheno-7 types was low to moderate for all traits. The correlations between the phenotypic 8 values of the mother trees and the breeding values estimated on their half-sib pro-9 genies are low to moderate. Reasons for this may be experimental errors in progeny 10 trials and lack of experimental design in archives, contributing to the parent and 11 progeny correlation. The management practices in the archive may contribute more 12 to such low correlation. Offspring progeny heritability estimates based on SilviScan 13 measurements were higher than parent-offspring regression using one single ramet 14 from the archive. Moreover, when three ramets were measured the parent-offspring 15 regression heritability estimates were higher than those based solely on progeny 16 data for the Pilodyn and Hitman on the standing trees. The standard error of the 17 heritability estimates decreased with increasing progeny size.18 19

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Section: Discussionmentioning

confidence: 99%

Genetic analysis using parent-progeny relationship for wood quality traits in Norway spruce (Picea abies (L.) Karst.)

Zhou

Chen

Lindqvist³

et al. 2018

Preprint

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“…Root rot resistance can be considered a high priority trait alongside H and StVol for incorporation into the selection index since it shows notable genetic variance, has high economic impact on timber production value, and does not show an undesirable relationship with growth [18], as also observed for Norway spruce [37]. Unsurprisingly, the reduction of gains in H and StVol were observed (Table 3) with the inclusion of RotResist as an additional trait into the selection index [18].…”

Section: Selection Methodsmentioning

confidence: 99%

“…Overall, the monetary value of forest products must reflect genetic gains for resistance index, and evaluation is necessary regarding whether the added value of RotResist outweighs selection for pure productivity [37]. In our study, we applied equal weights for growth traits and RotResist.…”

Section: Selection Methodsmentioning

confidence: 99%

“…[8,15,[32][33][34][35][36][37], moreover the genetic component in the resistance of Scots pine has also been previously detected [10]. The narrow-sense heritability (h 2 = 0.37) for RotResist was similar or higher to the indices estimated for H. parviporum lesion length in the phloem (0.17 < h 2 < 0.33) and fungal growth in sapwood (h 2 = 0.42) in Norway spruce open-pollinated progenies [9,37]. Also, for Norway spruce clones, moderate broad-sense heritability (H 2 = 0.21) has been estimated for lesion length [15].…”

Section: Genetic Parametersmentioning

confidence: 99%

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Pinus sylvestris Breeding for Resistance against Natural Infection of the Fungus Heterobasidion annosum

Rieksts-Riekstiņš

Zeltiņš

Baliuckas

et al. 2019

Forests

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Increasing resistance against biotic and abiotic factors is an important goal of forest tree breeding. The aim of the present study was to develop a root rot resistance index for Scots pine breeding and evaluate its effectiveness. The productivity, branch diameter, branchiness, stem straightness, spike knots, and damage from natural infection of root rot in 154 Scots pine open-pollinated families from Latvia were evaluated through a progeny field trial at the age of 38 years. Trees with decline symptoms were sampled for fungal isolations. Based on this information and kriging estimates of root rot, 35 affected areas (average size: 108 m 2 ; total 28% from the 1.5 ha trial) were delineated. Resistance index of a single tree was formed based on family adjusted proportion of live to infected trees and distance to the center of affected area. Heritability for resistance to root rot based on the value of this index, was high (0.37) and comparable to indices of growth traits. Correlations of family breeding estimates between resistance to root rot and the other traits were not significant, except for a weak, yet significant, positive correlation with diameter at breast height and branch diameter. Selection index including only growth traits (height and stem volume) had a negligible effect on damage by root rot. We detected a maximum genetic gain in resistance index of 33.7% when incorporating it into the selection index with positive gains for growth traits (6.5-11.0%). Two-stage selection with prior selection of the most resistant families was not superior to the use of selection index with only rot resistance included. Overall; rot resistance index appeared to be an effective tool in tree breeding for the selection of more resistant families, using the existing trials with natural (uncontrolled) infection

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“…Wood density (the mass per unit volume of wood) is considered an essential functional trait associated with mechanical support, carbon and nutrient storage, drought tolerance, water transport, Forests 2020, 11, 105; doi:10.3390/f11010105 www.mdpi.com/journal/forests and pathogen defense [1][2][3]. Variation in wood functional traits often reflect ecological tradeoffs that are influenced by allometric, biogeographic, and phylogenetic factors [1].…”

Section: Introductionmentioning

confidence: 99%

The Role of Climate Niche, Geofloristic History, Habitat Preference, and Allometry on Wood Density within a California Plant Community

Nelson

Francis

Cornwell

et al. 2020

Forests

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Research Highlights: To better understand within-community variation in wood density, our study demonstrated that a more nuanced approach is required beyond the climate–wood density correlations used in global analyses. Background and Objectives: Global meta-analyses have shown higher wood density is associated with higher temperatures and lower rainfall, while site-specific studies have explained variation in wood density with structural constraints and allometry. On a regional scale, uncertainty exists as to what extent climate and structural demands explain patterns in wood density. We explored the role of species climate niche, geofloristic history, habitat specialization, and allometry on wood density variation within a California forest/chaparral community. Materials and Methods: We collected data on species wood density, climate niche, geofloristic history, and riparian habitat specialization for 20 species of trees and shrubs in a California forest. Results: We found a negative relationship between wood density and basal diameter to height ratio for riparian species and no relationship for non-riparian species. In contrast to previous studies, we found that climate signals had weak relationships with wood density, except for a positive relationship between wood density and the dryness of a species’ wet range edge (species with drier wet range margins have higher wood density). Wood density, however, did not correlate with the aridity of species’ dry range margins. Geofloristic history had no direct effect on wood density or climate niche for modern California plant communities. Conclusions: Within a California plant community, allometry influences wood density for riparian specialists, but non-riparian plants are ‘overbuilt’ such that wood density is not related to canopy structure. Meanwhile, the relationship of wood density to species’ aridity niches challenges our classic assumptions about the adaptive significance of high wood density as a drought tolerance trait.

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Genetic parameters for wood quality traits and resistance to the pathogens Heterobasidion parviporum and Endoconidiophora polonica in a Norway spruce breeding population

Cited by 30 publications

References 35 publications

Genetic analysis using parent-progeny relationship for wood quality traits in Norway spruce (Picea abies (L.) Karst.)

Genetic analysis using parent-progeny relationship for wood quality traits in Norway spruce (Picea abies (L.) Karst.)

Pinus sylvestris Breeding for Resistance against Natural Infection of the Fungus Heterobasidion annosum

The Role of Climate Niche, Geofloristic History, Habitat Preference, and Allometry on Wood Density within a California Plant Community

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