Variation and selection analysis of Pinus koraiensis clones in northeast China

Liang, Dan; Ding, Changjun; GuangHao, Zhao; WeiWei, Leng; Zhang, Min; Zhao, Xiyang; Qu, Guanzheng

doi:10.1007/s11676-017-0471-y

Cited by 29 publications

(23 citation statements)

References 28 publications

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“…Similar findings were reported on many tree species, indicating that selection based on phenotypic variation results is feasible [60][61][62][63]. Considering the extent of phenotypic variation, the clone variability in PCV values (%) seems to be slightly lower compared to prior P. koraiensis variation studies [9,10]; this is likely due to the age difference in Korean pine materials used in each study [61], the genetic properties (clone against families), planting design and different environmental conditions. The material age is an important factor in growth variation of planted trees that share similar environmental conditions, and growth sizes seem to be uniform among mature trees [64].…”

Section: Clone Variability Based On Phenotypic Characteristicssupporting

confidence: 70%

“…Yij . Using clonal variances, the broad-sense genetic correlation was computed according to Liang et al [9] by dividing trait covariance values by the square root of the sum of trait variances. The heat map package in R 3.6.1 was used to plot the genetic correlation using all the investigated phenotypic characteristics [41].…”

Section: Discussionmentioning

confidence: 99%

“…The clonal repeatability was estimated following [ 40 ] to determine the proportion of the total phenotypic variance that was due to the genotypes of clones by

. Using clonal variances, the broad-sense genetic correlation was computed according to Liang et al [ 9 ] by dividing trait covariance values by the square root of the sum of trait variances. The heat map package in R 3.6.1 was used to plot the genetic correlation using all the investigated phenotypic characteristics [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

“…Phenotypically superior Korean pine trees have been selected from natural forestlands and have been established in seed orchards since the early 1960s [8]. Many studies have evaluated the outcome of the Korean pine breeding program, and numerous elite tree lines have been selected based on phenotypic and genetic variability in growth, wood, fruit, seed and nutrient content within clonal, half-sib and full-sib P. Koraiensis populations [9,10]. Improved clones of P. koraiensis spp.…”

Section: Introductionmentioning

confidence: 99%

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Phenotypic Variability and Genetic Diversity in a Pinus koraiensis Clonal Trial in Northeastern China

Kaviriri

Zhang

et al. 2020

Genes

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Combining phenotypic and genetic characteristics in a genetic variation study is of paramount importance to effectively orient the selection of producers’ elite trees in a seed orchard. In total, 28 phenotypic characteristics and 16 microsatellite loci were used to analyze the clonal genetic variation, to characterize the genetic diversity, and to refine the genetic classifications of 110 Pinus koraiensis clones grown in the Naozhi orchard in northeastern China. All clones were significantly different in most traits. Most of the phenotypic characteristics showed great genetic variation among clones, while the genotypic differentiation was weak between the selection sites of clones. The SSR markers showed a relatively high level of genetic diversity (Na = 4.67 ± 0.43, Ne = 2.916 ± 0.18, I = 1.15 ± 0.07, Ho = 0.69 ± 0.04, He = 0.62 ± 0.02, and mean polymorphic information content (PIC) of 0.574), with higher heterozygosity as an indication of a lower probability of inbreeding events in the orchard. Despite weak correlation coefficients between dissimilarity matrices (r(A/B), range equal to 0.022, p-value < 0.001), the genetic and phenotypic classifications congruently subdivided all the clones into three major groups. The patterns of phenotypic trait variations and genetic diversity are valuable to effectively select materials in breeding programs of P. koraiensis.

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Section: Clone Variability Based On Phenotypic Characteristicssupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

“…The clonal repeatability was estimated following [ 40 ] to determine the proportion of the total phenotypic variance that was due to the genotypes of clones by

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phenotypic Variability and Genetic Diversity in a Pinus koraiensis Clonal Trial in Northeastern China

Kaviriri

Zhang

et al. 2020

Genes

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“…Jiang et al [22] measured the height, DBH, and seed traits of 170 Korean 38-year-old pine clones in Linjiang Forest Farm in the Linjiang Forestry Bureau area of Jilin Province, and selected 17 excellent 38-year-old clones. Liang et al [21] measured and analyzed the growth and wood traits of 50 P. koraiensis clones in the Kaishanyu Forest Farm of Longjing City, Jilin Province, and selected five excellent clones.…”

Section: Research Progress On Conventional Breeding Of Pinus Koraiensismentioning

confidence: 99%

Genetic Improvement of Pinus koraiensis in China: Current Situation and Future Prospects

Liu

Wei

et al. 2020

Forests

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Pinus koraiensis (Sieb.et Zucc) is an economically and ecologically important tree species, naturally distributed in northeastern China. Conservation efforts and genetic improvement for this species began in the 1960s and 1980s, with the establishment of several primary seed orchards based on range-wide provenance evaluations. The original breeding objective was to improve growth and wood yield, but during the recent decade, it was redefined to include other traits, such as an enhancement of wood properties, seed oil content, cone yield, and the development of elite provenance with families, clones, and varieties with good tolerance to biotic and abiotic stresses. However, improvement processes are slow due to a long breeding cycle, and the number of improved varieties is still low. In this review, we summarize the recent progress in the selective improvement of P. koraiensis varieties, such as elite provenance, family, and clones, using various breeding procedures. We collate information on advances in the improvement of P. koraiensis, based on conventional breeding and molecular marker-assisted breeding methods; identify gaps in our understanding of the tree improvement processes; and propose future research directions, which will provide new insight for subsequent genetic breeding research on P. koraiensis.

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Nonlinear mixed-effect branch growth model development for planted Korean pine in Northeast China

Liu,

Feng,

Gao

et al. 2024

Trees

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Variation and selection analysis of Pinus koraiensis clones in northeast China

Cited by 29 publications

References 28 publications

Phenotypic Variability and Genetic Diversity in a Pinus koraiensis Clonal Trial in Northeastern China

Phenotypic Variability and Genetic Diversity in a Pinus koraiensis Clonal Trial in Northeastern China

Genetic Improvement of Pinus koraiensis in China: Current Situation and Future Prospects

Nonlinear mixed-effect branch growth model development for planted Korean pine in Northeast China

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