scholarly journals Genetic variation in adaptive traits and seed transfer zones for P seudoroegneria spicata (bluebunch wheatgrass) in the northwestern U nited S tates

2013 ◽  
Vol 6 (6) ◽  
pp. 933-948 ◽  
Author(s):  
John Bradley St. Clair ◽  
Francis F. Kilkenny ◽  
Richard C. Johnson ◽  
Nancy L. Shaw ◽  
George Weaver
Keyword(s):  
Genetic Variation ◽  
Adaptive Traits ◽  
Seed Transfer ◽  
Bluebunch Wheatgrass ◽  
Transfer Zones

Seed transfer zones for a native grass (Festuca roemeri): genecological evidence

2008 ◽  
Vol 9 (3) ◽  
pp. 287-302 ◽  
Author(s):  
Barbara L. Wilson ◽  
Dale C. Darris ◽  
Rob Fiegener ◽  
Randy Johnson ◽  
Matthew E. Horning ◽  
...  
Keyword(s):  
Native Grass ◽  
Seed Transfer ◽  
Transfer Zones

Assessing Potential Seed Transfer Zones for Five Forb Species from the Great Basin Floristic Region, USA

2015 ◽  
Vol 35 (1) ◽  
pp. 174-188 ◽  
Author(s):  
Andrea T. Kramer ◽  
Daniel J. Larkin ◽  
Jeremie B. Fant
Keyword(s):  
Great Basin ◽  
Seed Transfer ◽  
Transfer Zones

Mapping genetic variation and seed zones for Bromus carinatus in the Blue Mountains of eastern Oregon, USAIn this article, mention of companies or trade names does not constitute an endorsement of any product or procedure.

Botany ◽  
2010 ◽  
Vol 88 (8) ◽  
pp. 725-736 ◽  
Author(s):  
R. C. Johnson ◽  
Vicky J. Erickson ◽  
Nancy L. Mandel ◽  
J. Bradley St Clair ◽  
Kenneth W. Vance-Borland
Keyword(s):  
Environmental Variables ◽  
Regression Models ◽  
Plant Traits ◽  
Seed Source ◽  
Maximum Temperature ◽  
Blue Mountains ◽  
Seed Transfer ◽  
Bromus Carinatus ◽  
Seed Zones ◽  
Transfer Zones

Seed transfer zones ensure that germplasm selected for restoration is suitable and sustainable in diverse environments. In this study, seed zones were developed for mountain brome ( Bromus carinatus Hook. & Arn.) in the Blue Mountains of northeastern Oregon and adjoining Washington. Plants from 148 Blue Mountain seed source locations were evaluated in common-garden studies at two contrasting test sites. Data on phenology, morphology, and production were collected over two growing seasons. Plant traits varied significantly and were frequently correlated with annual precipitation and annual maximum temperature at seed source locations (P < 0.05). Plants from warmer locations generally had higher dry matter production, longer leaves, wider crowns, denser foliage, and greater plant height than those from cooler locations. Regression models of environmental variables with the first two principal components (PC 1 and PC 2) explained 46% and 40% of the total variation, respectively. Maps of PC 1 and PC 2 generally corresponded to elevation, temperature, and precipitation gradients. The regression models developed from PC 1 and PC 2 and environmental variables were used to map seed transfer zones. These maps will be useful in selecting mountain brome seed sources for habitat restoration in the Blue Mountains.

scholarly journals Fourwing saltbush (Atriplex canescens) seed transfer zones

2004 ◽  
Author(s):  
Stewart C. Sanderson ◽  
Durant E. McArthur
Keyword(s):  
Atriplex Canescens ◽  
Seed Transfer ◽  
Transfer Zones

scholarly journals Genetik, Ökologie, Forstwirtschaft: Zusammenhänge und Perspektiven | Genetics, ecology, forest management: connections and perspectives

2010 ◽  
Vol 161 (6) ◽  
pp. 198-206 ◽  
Author(s):  
Reiner Finkeldey
Keyword(s):  
Genetic Variation ◽  
Central Europe ◽  
Molecular Genetic ◽  
Wood Products ◽  
Forest Trees ◽  
Adaptive Traits ◽  
Long Distance ◽  
Variation Patterns ◽  
Forest Genetic ◽  
Reproductive Material

Our understanding of the genetic variation of forest trees and its dynamics is rapidly increasing. The glacial eras, postglacial migration and human transfer of reproductive material had deep impacts on genetic variation patterns of European forest trees. The genetic basis of variation at adaptive traits and traits of economic importance is currently investigated by molecular genetic approaches eventually leading to a better understanding of the functional importance of intraspecific variation for forest ecosystems. Important applications of forest genetic research including breeding, conservation and adaptation to changing environments are briefly described based on current fields of research. The establishment and observation of field trials, complemented by a molecular investigation of variation patterns in genes coding for adaptive traits, continues to be a main field of research. The potential for the use of transgenic trees is regarded as low in central Europe. The origin of forest reproductive material is routinely tested based on genetic markers in Germany. Forest genetics contributes to the protection of natural resources by the development and implementation of methods to conserve forest genetic resources. In addition, molecular genetic tools are developed to test the origin of wood and wood products and to identify illegally traded wood; first encouraging results have been obtained. Evolutionary processes must not be neglected within the context of adaptation to global change. The development of strategies to mitigate climate change effects on forests in central Europe should consider the genetic variation of tree species by the promotion of adaptive potentials. The current knowledge does not allow to propose long-distance seed transfer from south to north as a universal approach to promote adaptation to climate warming in Europe.

A model of genetic variation for Pinus ponderosa in the Inland Northwest (U.S.A.): applications in gene resource management

1991 ◽  
Vol 21 (10) ◽  
pp. 1491-1500 ◽  
Author(s):  
G. E. Rehfeldt
Keyword(s):  
Genetic Variation ◽  
Pinus Ponderosa ◽  
Regression Models ◽  
Common Garden ◽  
Shoot Elongation ◽  
The United States ◽  
Independent Data ◽  
Gene Conservation ◽  
Seed Transfer ◽  
Inland Northwest

Models were developed to describe genetic variation among 201 seedling populations ofPinusponderosa var. ponderosa in the Inland Northwest of the United States. Common-garden studies provided three variables that reflected growth and development in field environments and three principal components of six variables that reflected patterns of shoot elongation. Regression models were developed for describing genetic variation across the landscape. Using functions of latitude, longitude, and elevation as descriptors, these models produced values of R2 that were as large as 0.66, while averaging 0.39. The models described genetic variation as occurring along relatively steep elevational clines and gentle geographic (i.e., latitudinal and longitudinal) clines. An exercise at validating the models with independent data supported their veracity. Predictions made by the models are applied to limiting seed transfer, designing breeding zones, planning gene conservation programs, interpreting phenotypic variation, and predicting the effects of environmental change on the adaptedness of populations.

scholarly journals What's the meaning of local? Using molecular markers to define seed transfer zones for ecological restoration in Norway

2016 ◽  
Vol 9 (5) ◽  
pp. 673-684 ◽  
Author(s):  
Marte Holten Jørgensen ◽  
Abdelhameed Elameen ◽  
Nadine Hofman ◽  
Sonja Klemsdal ◽  
Sandra Malaval ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Ecological Restoration ◽  
Seed Transfer ◽  
Transfer Zones
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