Silvae Genetica (SILVAE GENET)

Publisher: Bundesforschungsanstalt für Forst- und Holzwirtschaft (Germany), JD Sauerlaender's Verlag

Current impact factor: 0.28

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 0.278
2013 Impact Factor 0.24
2012 Impact Factor 0.44
2011 Impact Factor 0.778
2010 Impact Factor 0.689
2009 Impact Factor 0.543
2008 Impact Factor 0.667
2007 Impact Factor 0.545
2006 Impact Factor 0.311
2005 Impact Factor 0.34
2004 Impact Factor 0.356
2003 Impact Factor 0.261
2002 Impact Factor 0.244
2001 Impact Factor 0.354
2000 Impact Factor 0.312
1999 Impact Factor 0.513
1998 Impact Factor 0.483
1997 Impact Factor 0.463
1996 Impact Factor 0.491
1995 Impact Factor 0.372
1994 Impact Factor 0.473
1993 Impact Factor 0.275
1992 Impact Factor 0.46

Impact factor over time

Impact factor

Additional details

5-year impact 0.51
Cited half-life >10.0
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.13
Website Silvae Genetica website
Other titles Silvae genetica
ISSN 0037-5349
OCLC 11054817
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

JD Sauerlaender's Verlag

  • Pre-print
    • Author cannot archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • Publisher's version/PDF must be used
    • Upon publication in publisher archive
  • Classification

Publications in this journal

  • No preview · Article · Nov 2015 · Silvae Genetica
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    ABSTRACT: In natural plant populations, the spatial genetic structure (SGS) is occasionally associated with evolutionary and ecological features such as the mating system, individual fitness, inbreeding depression and natural selection of the species of interest. The very rare Mexican P. chihuahuana tree community covers an area no more than 300 ha and has been the subject of several studies concerning its ecology and population genetics. The overall aim of most of these studies has been to obtain data to help design preservation and conservation strategies. However, analysis of the fine-scale SGS in this special forest tree community has not yet been conducted, which might help enrich the above mentioned conservation programs. In this study, we examined the SGS of this community, mostly formed by P. chihuahuana Martínez, Pinus strobiformis Ehrenberg ex Schlechtendah, Pseudotsuga menziesii (Mirb.) Franco, and Populus tremuloides Michx, in 14 localities at both the fine and large scales, with the aim of obtaining a better understanding of evolutionary processes. We observed a non-significant autocorrelation in fine-scale SGS, suggesting that the genetic variants of all four tree species are randomly distributed in space within each sampled plot of 50 x 50 m. At the larger scale, the autocorrelation was highly significant for P. chihuahuana and P. menziesii, probably as a result of insufficient gene flow due to the extreme population isolation and small sizes. For these two species our results provided strong support for the theory of isolation by distance.
    No preview · Article · Dec 2014 · Silvae Genetica
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    ABSTRACT: Fifty-one full-sib families were created using 11 parents in a silver fir seed orchard and a half-diallel mating design. The seeds of control-pollinated families were sown in a nursery in autumn 2007. Growth and branches traits were measured during nursery testing, and genetic parameters were estimated at the ages of 3, 4, 5, and 6 years. The additive and dominance genetic variances were major sources of genetic variance. Dominance variance was greater than additive variance at these early ages for all traits. However, the ratio of SCA/GCA variance decreased from 23 to 14 for total height and from 36 to 19 for root collar diameter. Broad-sense family heritability is higher than individual heritability. Height and root collar diameter are the most heritable traits in silver fir. The time trend of the five heritability estimates for total height increased with age. Significant trait-trait genetic correlations were obtained. Age-age genetic correlations were very high, and they displayed increasing trends with age. The selection of the most valuable parents and most valuable individuals within the best families could maximise genetic gain in the second breeding generation of silver fir.
    No preview · Article · Jan 2014 · Silvae Genetica
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    ABSTRACT: Habitat fragmentation and the creation of so-called edge effects may have different implications on flora and fauna, including complex genetic responses. This study aimed to analyze the genetic diversity in a local population of the shade tolerant tree Trichilia elegans A. Juss (Meliaceae), with emphasis to the evaluation of genetic variation towards an edge-interior gradient. The results of isoenzymes assays showed that the edge subpopulation experienced the highest allele loss, while fixed alleles increased towards the interior. The total polymorphic loci percentage was 76.67%, being higher in the Middle subpopulation, whilethe average sample size for a locus (N) and the mean number of alleles for a locus (N-a) were significantly lower in the Edge subpopulation. The indices H-o, H-e and f showed good heterozygosity in the total population, indicating high genetic variability. The genetic distance Fs(t) and Nm followed the same pattern, with Middle and Interior subpopulations showing higher similarity and the Edge as the farthest one, also showing less gene flow in relation to the others. Principal Coordinates Analysis (PCoA) allowed us to separate the three subpopulations with the first two axes explaining 65% of total variation, confirming that forest fragmentation affects the genetics of Trichilia elegans within the analyzed fragment.
    No preview · Article · Jan 2014 · Silvae Genetica
  • Q. Weng · X. He · F. Li · M. Li · X. Yu · J. Shi · S. Gan
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    ABSTRACT: Interspecific hybrids of Eucalyptus urophylla x E. tereticornis in a factorial-mating design were used to analyze general hybridizing ability (GHA), specific hybridizing ability (SHA) and heterosis for height (H; 0.5, 1.5, 2.5, 4 and 7.5 years in age), diameter at breast height (D; ages 1.5, 2.5, 4 and 7.5) and wood density (WD; age 7.5) across two environments. The GHA variances were significant for all traits, and those of the SHA were also significant for most of the traits but with less magnitude, indicating the greater importance of additive gene effects in explaining the phenotypic variation among hybrids. The narrow-sense heritability (h(2)) and dominance (d(2)) estimates with hybrid growth and wood density ranged between 0.02 +/- 0.05 (d(2) in D-7.5) and 0.23 +/- 0.10 (d(2) in H-1.5) over the different ages, suggesting weak additive and dominant effects on these traits. Additive genetic correlations of growth with wood density were weak at age 7.5. Female general combining ability (GCA) based on maternal open-pollinated families was not necessarily a good indicator of GHA as their correlations were 0.48 (P=0.17), 0.65 (P=0.04) and -0.56 (P=0.10) for H-7.5, D-7.5 and WD7.5, respectively. A great proportion of hybrids showed positive female-parent heterosis (FPH) at age 7.5, with the highest relative FPH of 47.2% in D-7.5. This study demonstrates the heterosis between inter-sectional species and could have implications for E. urophylla x E. tereticornis hybrid breeding.
    No preview · Article · Jan 2014 · Silvae Genetica
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    ABSTRACT: Genetic diversity and differentiation of six Populus tremula L. populations in the Ural mountains (Russia) were investigated using ISSR-markers. Analyses revealed relatively high genetic diversity and significant (p = 0.985) genetic isolation by distance of foothill and plain cis-Ural populations in the zone of forests with mixed coniferous and broad-leaved tree species. The genetic drift may be a factor that lead to comparatively low genetic variability and genetic singularities of isolated small populations of the aspen in dark coniferous taiga of the Ural mountains.
    No preview · Article · Jan 2014 · Silvae Genetica
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    ABSTRACT: Four inoculation methods were investigated for assessing the clonal variation of eucalypts in susceptibility to bacterial wilt (Ralstonia solanacearum). The results showed that these inoculation methods obviously differed in the disease infection process, clonal variation and clonal mean repeatability in susceptibility of stock materials inoculated. For each inoculation method, the clonal effect was consistently significant over the assessment period. Root-collar suspension injection method (RSI) yielded the highest relative clonal variation (0.67 +/- 0.086) and clonal mean repeatability (0.92 +/- 0.038) in both disease infected incidence and severity at the end of assessment, attributable to the enhanced genetic variation or low environment effect. For a given inoculation method, an early assessment time might exist for maximizing relative clonal variation or repeatability. It is desirable in breeding to adopt an inoculation method and/or efficient assessment time with high clonal variance component, which would in turn improve the efficiency of clonal screening.
    No preview · Article · Jan 2014 · Silvae Genetica