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Bromus tectorum (Poaceae) in midcontinental United States: Population genetic analysis of an ongoing invasion

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Schachner, Lauren J, Mack, Richard N, and Novak, Stephen J, Bromus tectorum (Poaceae) in midcontinental United States: Population genetic analysis of an ongoing invasion: .

Summary

Biological invasions can be substantially influenced by the genetic sampling associated with a species? introduction. As a result, we assessed the genetic and evolutionary consequences of the entry and spread of the invasive grass Bromus tectorum (cheatgrass) across the United States midcontinent through an analysis of 54 populations, using enzyme electrophoresis. On average, these populations display 1.04 alleles per locus (A), 4.1% percent polymorphic loci per population (%P) and an expected mean heterozygosity (Hexp) value of 0.009. Heterozygotes, which have been rarely reported for B. tectorum in North America, occur in three populations in the midcontinent and are likely novel multilocus genotypes that arose postimmigration. The [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:08:31 MDT 2012

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Title Citation Bromus tectorum (Poaceae) in midcontinental United States: Population genetic analysis of an ongoing invasion

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