Journal article
Population structure and genetic diversity of Bromus tectorum within the small grain production region of the Pacific Northwest
Ecology and evolution, Vol.7(20), pp.8316-8328
10/2017
Handle:
https://hdl.handle.net/2376/107658
PMCID: PMC5648657
PMID: 29075451
Abstract
L. is an invasive winter annual grass naturalized across the United States. Numerous studies have investigated
population structure and genetics in the context of
as an ecological invader of natural areas and rangeland. Despite the wealth of information regarding
, previous studies have not focused on, or made comparisons to,
as it persists in individual agroecosystems. The objectives of this study were to assess the genetic diversity and structure, the occurrence of generalist and specialist genotypes, and the influence of climate on distribution of
sourced exclusively from within small grain production regions of the Pacific Northwest. Genetic diversity of
sourced from agronomic fields was found to be similar to what has been observed from other land use histories. Six distinct genetic clusters of
were identified, with no evidence to indicate that any of the genetic clusters were better adapted to a particular geographical area or climate within the region. Given the apparent random spatial distribution of
genetic clusters at the spatial scale of this analysis, unique genotypes may be well mixed within region, similar to what was reported for other inbreeding weedy grass species.
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Details
- Title
- Population structure and genetic diversity of Bromus tectorum within the small grain production region of the Pacific Northwest
- Creators
- Nevin C Lawrence - University of Nebraska-Lincoln Scottsbluff NE USAAmber L Hauvermale - Department of Crop and Soil Sciences Washington State University Pullman WA USAAmit Dhingra - Department of Horticulture Washington State University Pullman WA USAIan C Burke - Department of Crop and Soil Sciences Washington State University Pullman WA USA
- Publication Details
- Ecology and evolution, Vol.7(20), pp.8316-8328
- Academic Unit
- Crop and Soil Sciences, Department of; Horticulture, Department of
- Publisher
- England
- Identifiers
- 99900546855101842
- Language
- English
- Resource Type
- Journal article