By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Evolution. According to news reporting originating in Corvallis, Oregon, by NewsRx journalists, research stated, "A genecological approach was used to explore genetic variation in adaptive traits in Pseudoroegneria spicata, a key restoration grass, in the intermountain western United States. Common garden experiments were established at three contrasting sites with seedlings from two maternal parents from each of 114 populations along with five commercial releases commonly used in restoration."
The news reporters obtained a quote from the research from Oregon State University, "Traits associated with size, flowering phenology, and leaf width varied considerably among populations and were moderately correlated with the climates of the seed sources. Pseudoroegneria spicata populations from warm, arid source environments were smaller with earlier phenology and had relatively narrow leaves than those from mild climates with cool summers, warm winters, low seasonal temperature differentials, high precipitation, and low aridity. Later phenology was generally associated with populations from colder climates. Releases were larger and more fecund than most of the native ecotypes, but were similar to native populations near their source of origin. Differences among native populations associated with source climates that are logical for survival, growth, and reproduction indicate that genetic variation across the landscape is adaptive and should be considered during restoration."
According to the news reporters, the research concluded: "Results were used to delineate seed transfer zones and population movement guidelines to ensure adapted plant materials for restoration activities."
For more information on this research see: Genetic variation in adaptive traits and seed transfer zones for Pseudoroegneria spicata (bluebunch wheatgrass) in the northwestern United States. Evolutionary Applications, 2013;6(6):933-948. Evolutionary Applications can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Evolutionary Applications - onlinelibrary.wiley.com/journal/10.1111/(ISSN)1752-4571)
Our news correspondents report that additional information may be obtained by contacting J.B. St Clair, Oregon State University, Dept. of Stat, Corvallis, OR 97331, United States. Additional authors for this research include F.F. Kilkenny, R.C. Johnson, N.L. Shaw and G. Weaver (see also Evolution).
Keywords for this news article include: Oregon, Corvallis, Evolution, United States, North and Central America
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