Genetic relationship between wood properties and growth traits in Larix kaempferi obtained from a diallel mating test

2014 ◽  
Vol 61 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Eitaro Fukatsu ◽  
Yuichiro Hiraoka ◽  
Koji Matsunaga ◽  
Miyoko Tsubomura ◽  
Ryogo Nakada
Keyword(s):  
Genetic Relationship ◽  
Growth Traits ◽  
Wood Properties ◽  
Larix Kaempferi ◽  
Mating Test ◽  
Diallel Mating

scholarly journals Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

2013 ◽  
Vol 70 (5) ◽  
pp. 451-459 ◽  
Author(s):  
Eitaro Fukatsu ◽  
Miyoko Tsubomura ◽  
Yoshitake Fujisawa ◽  
Ryogo Nakada
Keyword(s):  
Wood Density ◽  
Genetic Improvement ◽  
Radial Growth ◽  
Larix Kaempferi ◽  
Mating Test ◽  
Diallel Mating

Evaluation and selection analyses of 60 Larix kaempferi clones in four provenances based on growth traits and wood properties

2020 ◽  
Vol 16 (2) ◽  
Author(s):  
Yanyan Pan ◽  
Luping Jiang ◽  
Guiyou Xu ◽  
Jiaqi Li ◽  
Biying Wang ◽  
...  
Keyword(s):  
Growth Traits ◽  
Wood Properties ◽  
Larix Kaempferi

scholarly journals Identification of genetic markers and wood properties that predict wood biorefinery potential in aspen bioenergy feedstock (Populus tremula).

2021 ◽  
Author(s):  
Sacha Escamez ◽  
Mikko Luomaranta ◽  
Niklas Mahler ◽  
Madhavi Latha Gandla ◽  
Kathryn M Robinson ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Genetic Markers ◽  
Genome Wide Association Study ◽  
Growth Traits ◽  
Wood Properties ◽  
Yield Traits ◽  
Bioenergy Feedstock ◽  
European Aspen ◽  
Wood Traits ◽  
Wood Chemical Composition

Wood represents the majority of the biomass on lands, and it constitutes a renewable source of biofuels and other bioproducts. However, wood is recalcitrant to bioconversion, meaning that feedstocks must be improved. We investigated the properties of wood that affect bioconversion, as well as the underlying genetics, to help identify superior biorefinery tree feedstocks. We recorded as many as 65 wood-related and growth traits in a population of European aspen natural genotypes. These traits included three growth and field performance traits, 20 traits for wood chemical composition, 17 traits for wood anatomy and structure, and 25 wood saccharification traits as indicators of bioconversion potential. We used statistical modelling to determine which wood traits best predict bioconversion yield traits. This way, we identified a core set of wood properties that predict bioprocessing traits. Several of these predictor traits showed high broad-sense heritability, suggesting potential for genetic improvement of feedstocks. Finally, we performed genome-wide association study (GWAS) to identify genetic markers for yield traits or for wood traits that predict yield. GWAS revealed only a few genetic markers for saccharification yield traits, but many more SNPs were associated with wood chemical composition traits, including predictors traits for saccharification. Among them, 16 genetic markers associated specifically with lignin chemical composition were situated in and around two genes which had not previously been associated with lignin. Our approach allowed linking aspen wood bioprocessing yield to wood properties and the underlying genetics, including the discovery of two new potential regulator genes for wood chemical composition.

Growth and wood properties of genetically improved loblolly pine: propagation type comparison and genetic parameters

2014 ◽  
Vol 44 (3) ◽  
pp. 263-272 ◽  
Author(s):  
Finto Antony ◽  
Laurence R. Schimleck ◽  
Lewis Jordan ◽  
Benjamin Hornsby ◽  
Joseph Dahlen ◽  
...  
Keyword(s):  
Wood Density ◽  
Loblolly Pine ◽  
Growth Traits ◽  
Genetic Correlations ◽  
Tree Height ◽  
Wood Properties ◽  
Genetically Improved ◽  
Growth Properties ◽  
Wood Traits ◽  
Clonal Lines

The use of clonal varieties in forestry offers great potential to improve growth traits (quantity) and wood properties (quality) of loblolly pine (Pinus taeda L.). Loblolly pine trees established via somatic embryogenesis (clones), full-sib zygotic crosses, and half-sib zygotic open-pollinated families were sampled to identify variation in growth and wood properties among and within clonal lines and zygotic controls. Increment cores 5 mm in diameter were collected at age 4 from a total of 2615 trees. Growth properties (diameter at 1.4 m and total tree height) and wood properties (whole-core density, latewood and earlywood density, and latewood percent) were measured for each tree sampled in the study. Overall, growth properties were better for full-sib seedling than for clonal lines, whereas wood density was higher for clonal lines than full-sib and open-pollinated seedlings. However, there were clonal lines with better growth and higher wood density. Clonal repeatability of both growth and wood properties across sampled sites and genetic correlations between growth and wood traits were determined, with higher repeatability observed for wood traits compared with growth traits. Significant genetic correlations were observed for tree height and wood properties, whereas weak correlations were observed for diameter and wood properties.

Early evaluation of growth traits of Larix kaempferi clones

2017 ◽  
Vol 29 (4) ◽  
pp. 1031-1039 ◽  
Author(s):  
Yanyan Pan ◽  
Shuchun Li ◽  
Chenglu Wang ◽  
Wenjun Ma ◽  
Guiyou Xu ◽  
...  
Keyword(s):  
Growth Traits ◽  
Larix Kaempferi ◽  
Early Evaluation

Mating biology in Peniophora cinerea (Basidiomycetes)

1992 ◽  
Vol 70 (9) ◽  
pp. 1758-1764 ◽  
Author(s):  
Nils Hallenberg ◽  
Ellen Larsson
Keyword(s):  
Isoelectric Focusing ◽  
Sibling Species ◽  
Genetic Relationship ◽  
Mating Test ◽  
Banding Patterns ◽  
Insect Gall ◽  
Mating Biology ◽  
Mating Tests ◽  
Close Genetic Relationship ◽  
Sterility Barrier

Mating tests were performed to analyze the genetic relationship between two intersterile sibling species in Peniophora cinerea (Fr.) Cooke in Europe. Two newly collected specimens from North Europe were found to be compatible with both sibling species, which strongly suggests a close genetic relationship and a sterility barrier of simple genetic origin. The two sibling species, which differ in their substrate selectivity, are accepted as subspecies. One subspecies is restricted to decorticated wood of Fagus, and occasionally the fruit bodies are associated with insect galls. Intersterility was also found in some combinations with two other specimens from Canada and Turkey, but no linkage was found with a particular substrate. Specimens from Taiwan were found to be partially compatible with specimens from Europe, Turkey, and Canada. Distinct differences between the subspecies were found in banding patterns from isoelectric focusing of buffer-soluble mycelial proteins. It is proposed that the kind of intersterility found here is intraspecific and should be looked upon as part of a propagation strategy. Key words: speciation, evolution, Basidiomycetes, isoelectric focusing, insect gall, mating test.

scholarly journals Forward, backward selection and variation analysis of growth traits in half-sib Larix kaempferi families

2019 ◽  
Vol 68 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Xiyang Zhao ◽  
Yanyan Pan ◽  
Xiaona Pei ◽  
Fuwei Wang ◽  
Chenglu Wang ◽  
...  
Keyword(s):  
Growth Traits ◽  
Tree Height ◽  
Larix Kaempferi ◽  
Selection Ratio ◽  
Diameter At Breast Height ◽  
Breast Height ◽  
Significant Difference ◽  
Different Ages ◽  
Positive Correlations ◽  
Total Average

Abstract Tree height and diameter at breast height of 30 half-sib Larix kaempferi families were analyzed at different ages. Analysis of variance revealed a significant difference in growth among dif­ferent families. Phenotypic variation coefficients of the traits tree height and diameter at breast height among families of different ages ranged from 11.04 % to 31.74 % and 19.01 % to 19.83 %, respectively. Average heritability of tree height and diameter at breast height ranged from 0.87 to 0.96 and 0.93 to 0.96, respectively. Significant positive correlations were obser­ved among all traits at different ages. By the method of multip­le-traits comprehensive, six families (L18, L12, L8, L3, L25 and L20) were selected as being elite using a 20 % selection ratio at 12 years of age. Average values of these elite families were 11.15 % and 16.83 % higher than the total average for height and diameter at breast height, and genetic gains were 10.53 % and 15.79 %, respectively. Forty five elite individual plants were selected using a 5 % selection ratio which were 23.47 % and 24.90 % higher than the overall average for height and diame­ter at breast height, respectively.

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