TY - JOUR
T1 - Genetic analysis of downy brome (Bromus tectorum) and medusahead (Taeniatherum caput-medusae)
T2 - Management implications
AU - Novak, Stephen J.
PY - 2004/12
Y1 - 2004/12
N2 - Genetic analyses of invasive plants can provide information concerning the introduction dynamics of invasive species, the parameters associated with range expansion, the mechanisms of dispersal in the new range, and the identification of source populations. This information can give managers insights into the range of genotypes (and associated phenotypes) introduced, whether these genotypes may have experienced intermixing during range expansion, and the most efficacious locations in the native range to seek biological control agents. The invasive grasses downy brome and medusahead are now the predominant vascular plant species of degraded rangelands throughout arid and semiarid portions of western North America. In this article, I provide background information on the biology and history of introduction of downy brome and medusahead, summarize results of the allozyme analysis of populations of both species, and indicate the importance of these data to the management of invasive plant species. In addition, these data will be used to assess the introduction and spread of both downy brome and medusahead in their new ranges.
AB - Genetic analyses of invasive plants can provide information concerning the introduction dynamics of invasive species, the parameters associated with range expansion, the mechanisms of dispersal in the new range, and the identification of source populations. This information can give managers insights into the range of genotypes (and associated phenotypes) introduced, whether these genotypes may have experienced intermixing during range expansion, and the most efficacious locations in the native range to seek biological control agents. The invasive grasses downy brome and medusahead are now the predominant vascular plant species of degraded rangelands throughout arid and semiarid portions of western North America. In this article, I provide background information on the biology and history of introduction of downy brome and medusahead, summarize results of the allozyme analysis of populations of both species, and indicate the importance of these data to the management of invasive plant species. In addition, these data will be used to assess the introduction and spread of both downy brome and medusahead in their new ranges.
KW - Allozymes
KW - Genetic markers
KW - Invasive plants
KW - Multiple introductions
UR - http://www.scopus.com/inward/record.url?scp=37349005377&partnerID=8YFLogxK
U2 - 10.1614/0890-037X(2004)018[1417:GAODBB]2.0.CO;2
DO - 10.1614/0890-037X(2004)018[1417:GAODBB]2.0.CO;2
M3 - Article
AN - SCOPUS:37349005377
SN - 0890-037X
VL - 18
SP - 1417
EP - 1421
JO - Weed Technology
JF - Weed Technology
IS - SPEC. ISSUE 1
ER -