Registration of Toe Jam Creek Bottlebrush Squirreltail Germplasm

Jones, Thomas A.; Nielson, D. C.; Larson, Steven R.; Johnson, Douglas A.; Monaco, Thomas A.; Caicco, Steven L.; Ogle, D.G.; Young, S. A.; Carlson, J. R.

doi:10.2135/cropsci2004.1880

Cited by 16 publications

(13 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Early emergence, large plant and seed size, and high seed production are often selected for in cultivar development (e.g., Gibbs and Young ; Jones et al. ,b), presumably because these traits increase seed production in agricultural settings, as well as for the perceived benefits of these traits in natural systems. In our study, however, we found that the traits most associated with success were different from those selected during cultivation.…”

Section: Discussionmentioning

confidence: 99%

“…This particular collection of E. elymoides was noted to have earlier emergence and high seed mass relative to other accessions (Jones et al. ).…”

Section: Methodsmentioning

confidence: 98%

“…This germplasm was released for commercial use on 4 September 2003 and is intended for use in the Great Basin regions of Nevada, Oregon, Idaho, and Utah (Jones et al. ). The original collection of Toe Jam Creek seed was approximately 70 km northwest from our study sites; average annual precipitation at this site is 312 mm.…”

Section: Methodsmentioning

confidence: 99%

“…In either case, specific traits, such as plant and seed size, seed production, and phenology, are identified as criteria for choosing specific populations to increase for restoration (Gibbs and Young ; Jones et al. ,b; Fig. ).…”

Section: Introductionmentioning

confidence: 99%

“…We focused our measurements on plant size, seed size, and plant phenology because these traits are commonly used to determine which seed sources will be used in restoration (Gibbs and Young ; Jones et al. ,b). While the assumption is that larger seeds and larger plants will establish and survive better during restoration, previous research suggests that this might not be the case in highly invaded systems in the Great Basin, where natural selection can favor smaller statured plants (Leger ; Rowe and Leger ).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Strong natural selection during plant restoration favors an unexpected suite of plant traits

Kulpa

Leger

2013

Evolutionary Applications

View full text Add to dashboard Cite

Restoration is an opportunity to study natural selection: One can measure the distribution of traits in source propagules used to found populations, compare this with the distribution of traits in successful recruits, and determine the strength and direction of selection on potentially adaptive traits. We investigated whether natural selection influenced seedling establishment during postfire restoration in the Great Basin, an area where large-scale restoration occurs with a few widely available cultivars planted over a large range of environmental conditions. We collected seeds from established plants of the perennial grass Elymus elymoides ssp. californicus (squirreltail) at two restoration sites and compared the distribution of phenotypic traits of surviving plants with the original pool of restoration seeds. Seeds were planted in common gardens for two generations. Plants grown from seeds that established in the field were a nonrandom subset of the original seeds, with directional selection consistently favoring a correlated suite of traits in both field sites: small plant and seed size, and earlier flowering phenology. These results demonstrate that natural selection can affect restoration establishment in strong and predictable ways and that adaptive traits in these sites were opposite of the current criteria used for selection of restoration material in this system.

show abstract

Section: Discussionmentioning

confidence: 99%

“…This particular collection of E. elymoides was noted to have earlier emergence and high seed mass relative to other accessions (Jones et al. ).…”

Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%