scholarly journals The use of molecular markers in the improvement of conifer tree species

2008 ◽  
pp. 7-24 ◽  
Author(s):  
Vasilije Isajev ◽  
Snezana Mladenovic-Drinic ◽  
Aleksandar Lucic
Keyword(s):  
Molecular Markers ◽  
Tree Species ◽  
Ex Situ ◽  
Conservation Strategies ◽  
Coniferous Tree ◽  
Effective Population ◽  
Migration Patterns ◽  
Study Results ◽  
Conifer Tree ◽  
Coniferous Tree Species

The paper reviews the study results of the use of molecular markers in coniferous tree species improvement. The results are based on presentation of the experience in the application of biochemical and molecular analyses at the level of the selected populations and individuals from different provenances of coniferous tree species. Many studies performed during the last years demonstrated the usefulness of neutral molecular markers in the field of conservation and population genetics of conifers, in particular to understand the importance of migration patterns in shaping current genetic and geographic diversity and to measure important parameters such as effective population size, past bottlenecks and gene flow. This is relevant to design conservation strategies but is of little value to understand the adaptability patterns. In the specific field of the conservation genetics, molecular markers can be extremely useful in both ex situ and in situ gene pool conservation of coniferous trees.

Admixing broadleaved to coniferous tree species: a review on yield, ecological stability and economics

2007 ◽  
Vol 127 (2) ◽  
pp. 89-101 ◽  
Author(s):  
Thomas Knoke ◽  
Christian Ammer ◽  
Bernd Stimm ◽  
Reinhard Mosandl
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Ecological Stability ◽  
Coniferous Tree Species

Pathogenicity ofHeterobasidion annosum(Fr.) Bref.sensu strictoon coniferous tree species in Turkey

2015 ◽  
Vol 46 (1) ◽  
pp. 22-28 ◽  
Author(s):  
H. T. Doğmuş-Lehtijärvi ◽  
R. C. Erdoğan ◽  
A. Lehtijärvi ◽  
S. Woodward ◽  
A. G. Aday Kaya
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Coniferous Tree Species

Improving the accuracy of tree biomass estimations for three coniferous tree species in Northeast China

Trees ◽  
2021 ◽  
Author(s):  
Longfei Xie ◽  
Liyong Fu ◽  
Faris Rafi Almay Widagdo ◽  
Lihu Dong ◽  
Fengri Li
Keyword(s):  
Tree Species ◽  
Northeast China ◽  
Coniferous Tree ◽  
Tree Biomass ◽  
Coniferous Tree Species

scholarly journals Molecular markers applying in forest trees gene pool conservation

2009 ◽  
pp. 101-113
Author(s):  
Jelena Milovanovic ◽  
Mirjana Sijacic-Nikolic
Keyword(s):  
Population Genetics ◽  
Molecular Markers ◽  
Gene Flow ◽  
Gene Pool ◽  
Statistical Power ◽  
Forest Trees ◽  
Effective Population ◽  
Migration Patterns ◽  
Geographic Diversity ◽  
Marker Loci

Many studies performed during the last years demonstrated the usefulness of neutral molecular markers in the field of conservation and population genetics of forest trees, in particular to understand the importance of migration patterns in shaping current genetic and geographic diversity and to measure important parameters such as effective population size, gene flow and past bottleneck. During the next years, a large amount of data at marker loci or at sequence level is expected to be collected, and to become excellent statistical power for the assessment of biological and evolutionary value.

scholarly journals Analysis of the production potential of raw wood in the forests of Slovakia

2008 ◽  
Vol 54 (No. 7) ◽  
pp. 314-320
Author(s):  
R. Petráš ◽  
J. Mecko
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Production Potential ◽  
Tree Species Composition ◽  
Industrial Processing ◽  
Growing Stock ◽  
Forest Condition ◽  
Broadleaved Tree Species ◽  
Broadleaved Tree ◽  
Coniferous Tree Species

Production of raw wood material and its regulation has a great ecological and economic importance in every country. The aim of the paper is to analyze the prospective production of raw wood with respect to the expected basic tree species composition and assortment structure on an example of long-term development of selected indicators of forest condition in Slovakia. For this analysis we used data on the area, growing stock and planned decennial timber felling in the forests of Slovakia in 1980, 1996 and 2003. The production potential of forests was evaluated on the basis of the annual perspective allowable cut by 2020, from which the prospective production of assortments was derived using the models of assortment yield tables of tree species. The results show that in the forests of Slovakia there is an about half proportion of coniferous and half proportion of broadleaved tree species, very good structure of growing stock as well as its trend in the last years. Production of raw wood assortments for industrial processing for the years 2010–2020 is limited by the volume 6.3–6.4 mil. m<sup>3</sup>. About one half of this volume comes from coniferous and the other half from broadleaved tree species. For coniferous tree species the proportion of spruce and fir is 87% and for broadleaved tree species the proportion of beech and oak is 80%. For coniferous tree species sawmill assortments have a decisive, almost 70% proportion. Regarding broadleaved tree species, pulpwood assortments with 47% proportion prevail, although with 11% the highest quality assortments for the production of veneer from beech and oak are also significant.

scholarly journals Propagation of Juniper Species by Plant Tissue Culture: A Mini-Review

Forests ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 1028 ◽  
Author(s):  
Hazubska-Przybył
Keyword(s):  
In Vitro Culture ◽  
Protective Action ◽  
Ex Situ ◽  
Conservation Strategies ◽  
Culture Techniques ◽  
Effective Strategies ◽  
Dry Climates ◽  
Coniferous Tree Species ◽  
Seed Propagation

The genus Juniperus (of the Cupressaceae family) is the second most prevalent group of conifers on Earth. Juniper species are widely dispersed in the Northern Hemisphere, in Europe and Asia, and in Africa and Central America. Juniper species are resistant to dry climates and can adapt to difficult environmental conditions. Most juniper species are important in both ecological and economic terms. However, today, many forests in which junipers occur are being reduced in size due to both natural causes (fires, for example) and human activity (uncontrolled exploitation of forests, etc.). Also, climate changes may have adversely affected the range of populations of different juniper species. For this reason, some juniper species are now categorized as rare or endangered, and require immediate protective action. Therefore, there is an urgent need to develop effective strategies for ex situ conservation, including reliable procedures for Juniperus sp. reproduction for future reintroduction and restoration programs. The conservation strategies used until now with traditional forestry techniques (seed propagation, rooted cuttings, grafting) have not been satisfactory in many cases. Thus, increasing attention is being paid to the possibilities offered by in vitro culture technology, which enables the conservation and mass clonal propagation of different coniferous tree species. In this mini-review, we summarize the current state of knowledge regarding the use of various methods of the propagation of selected Juniperus species, with a particular emphasis on in vitro culture techniques.

Tree establishment and microhabitat relationships in north Swedish peatlands

1992 ◽  
Vol 22 (12) ◽  
pp. 1869-1877 ◽  
Author(s):  
Mikael Ohlson ◽  
Olle Zackrisson
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Northern Sweden ◽  
Seedling Mortality ◽  
Tree Establishment ◽  
Specific Relationship ◽  
Different Types ◽  
Coniferous Tree Species ◽  
Species Specific

We sowed seeds of Pinussylvestris L., Pinuscontorta Dougl, Piceaabies (L.) Karst., and Piceamariana (Mill.) B.S.P. at five different virgin peatland sites in northern Sweden. Seeds were sown in 1987, 1988, 1989, and 1990. The seeds were sown in three different types of microhabitat, viz Pleurozium, Sphagnumfuscum, and Sphagnumangustifolium. Germination and seedling mortality were monitored each year. Both germination and mortality were significantly affected by the micro-habitat. Sphagnumangustifolium microhabitats were most favourable and Pleurozium microhabitats were least favourable for germination of all tree species. In contrast, the mortality for all tree species was highest in Sphagnumangustifolium microhabitats and lowest in Pleurozium microhabitats. Lowest average mortality was found among the nonindigenous Pinuscontorta and Piceamariana. The coniferous tree species had a species-specific relationship with the microhabitat. Pinussylvestris seeds were the most able to germinate in the Pleurozium microhabitats, and seedling mortality was strongly affected by the microhabitat. Piceaabies was the least affected by the microhabitat, and seedling mortality was high irrespective of microhabitat.

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