Randy Johnson, Larry Stritch, Peggy Olwell, Scott Lambert, Matthew E Horning and Richard Cronn

Abstract The distribution of many species inhabiting northwestern North America has been heavily influenced by the climatic changes during late Pleistocene. Several studies have suggested that were restricted to glacial refugia north and/or south continental ice sheet front. It is also hypothesized coast could a prime location for because lowering eustatic sea level and concomitant rise shelf tectonic rebound. Alternatively, some coastal distributions demographics may unaffected in long‐term...

Genetic variation for potentially adaptive traits of the key restoration species Sandberg bluegrass (Poa secunda J. Presl) was assessed over intermountain western United States in relation to source population climate. Common gardens were established at two west sites with progeny from maternal parents each 130 wild populations. Data collected 2 years site on fifteen plant associated production, phenology, and morphology. Analyses variance revealed strong differences all (P < 0.0001),...

Barbara L Wilson, Dale C Darris, Rob Fiegener, Randy Johnson, Matthew E Horning and Keli Kuykendall

An important goal for land managers is the incorporation of appropriate (e.g., locally adapted and genetically diverse) plant materials in restoration revegetation activities. To identify these materials, researchers need to characterize variability essential traits natural populations determine how they are related environmental conditions. This common garden study was implemented growth phenological relative climatic geographic variables 39 Holodiscus discolor (Pursh) Maxim. accessions...

Abstract Increasing the evolutionary potential of restored populations has become a viable objective restoration activities. Choosing plant materials genetically adapted to environment is critical for success, and phenotypic plasticity may also contribute establishment persistence in disturbed environments. To select seed sources informed by plasticity, we must answer question: Do some source environments produce more plastic genotypes than others? Using dataset maternal families from 130...

Abstract Here we describe the characterization of six polymorphic microsatellite loci for Lilium philadelphicum (Liliaceae). Polymorphism levels ranged from 7 to 30 alleles per locus with a mean number 15 locus. Observed heterozygosity ( H O ) 0.17 0.82 and did not deviate Hardy–Weinberg expectations in three western Montana populations included analysis. These are proving useful studying gene flow between this species distributed across its range North America.

Phylogeographic and population genetic screens of chloroplast DNA (cpDNA) provide insights into seed-based gene flow in angiosperms, yet studies are frequently hampered by the low mutation rate this genome. Detection methods for intraspecific variation can be either direct (DNA sequencing) or indirect (PCR-RFLP), although no single method incorporates best features both approaches. We show that screening universal amp li cons length polymorphism provides an accurate efficient identifying...

ABSTRACT Farm environmental conditions and management practices can result in within‐cultivar differences seed quality lead to transgenerational plasticity (farm‐specific effects on offspring, or TGP) that affect germination emergence transplant fields. We used three perennial bunchgrasses, [green needlegrass ( Nassella viridula ) ‘Lodorm’, slender wheatgrass Elymus trachycaulus ‘Pryor’, bluebunch Pseudoregneria spicata prevariety registered germplasm P‐7] determine if seeds exhibited TGP....

In recent decades, an increasing number of plant species have been negatively affected by anthropogenic habitat fragmentation and disturbance. many cases, the matrix between populations has converted from a natural to urban environment. One such species, Lilium philadelphicum (Liliaceae) showy perennial with naturally patchy distribution, currently in parts its range North America that persist on highly urbanized fragmented landscapes. this study, we used six nuclear microsatellite loci...

Results of a recent common-garden study provide evidence needed to delineate appropriate seed transfer zones for the native grass Festuca roemeri (Pavlick) E. B. Alexeev (Poaceae). That information has been used develop pre-variety germplasm releases ecologically and genetically seeds habitat restoration, erosion control, other revegetation projects in 5 regions Pacific Northwest, US. Seed sources these composite populations were chosen represent broad base genetic diversity found within...

Dale C Darris, Barbara L Wilson, Rob Fiegener, Randy Johnson and Matthew E Horning

Basalt milkvetch and western prairie clover are native perennial legumes distributed in the northern Great Basin Columbia River Plateau of North America, with recent germplasm releases providing seed for revegetation. Although germination studies have identified scarification requirements both species, additional cold stratification <i>Astragalus filipes</i>, no research has been conducted to optimize likelihood seedling emergence on rangeland sites. In this study, we planted species 3...