Journal Title
Title of Journal: Biol Invasions
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Abbravation: Biological Invasions
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Publisher
Springer International Publishing
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Authors: Rima D Lucardi Lisa E Wallace Gary N Ervin
Publish Date: 2014/02/16
Volume: 16, Issue: 10, Pages: 2147-2161
Abstract
Interspecific hybridization is cited as one potential mechanism for increased invasiveness particularly among some grass species In the southeastern United States the successful invasion of cogongrass Imperata cylindrica has sometimes been attributed to hybridization with the previously naturalized Imperata brasiliensis This research aimed to determine whether genetic signals are consistent with these two species having experienced interspecific hybridization in Florida USA where it has been proposed that such an event facilitated cogongrass invasion across the region Individuals of invasive I cylindrica populations n = 66 were sampled broadly from the state and I brasiliensis n = 63 individuals were sampled from expertly identified and vouchered populations in MiamiDade County Genetic analysis utilized amplified fragment length polymorphisms in sampled individuals and failed to detect significant genetic differentiation between the two species Analysis of molecular variance partitioned the majority of detected variation within populations 86 while only 8 was significantly partitioned between I cylindrica and I brasiliensis FST = 0135 P 0001 Both STRUCTURE analysis and principal coordinates analysis strongly indicated the presence of a single genetic group across the sampled populations Hybrid analysis furthermore failed to support interspecific hybridization Florida populations thus are suggested to share genetic parent materials and/or have experienced substantial admixture across the state Therefore this study suggests Imperata populations in South Florida that are currently considered to be I brasiliensis are not genetically distinct from I cylindrica and regional cogongrass invasion likely was not facilitated by previously postulated interspecific hybridizationWe extend our sincere appreciation to Chris Matson and Debi Tharp at the Disney Wilderness Preserve of The Nature Conservancy and Keith Bradley of the Institute for Regional Conservation for their assistance with sampling tissues We thank BA Counterman DC Outlaw Department of Biological Sciences Mississippi State University CT Bryson retired US Department of Agriculture Agriculture Research Service Stoneville MS and Jake Walker Arkansas Research Center for reviewing an earlier version of this manuscript Two anonymous reviewers provided helpful critiques of an earlier version of this manuscript This research was supported in part by grants from the United States Geological Survey Biological Resources Discipline 04HQAG0135 and the United States Department of Agriculture 200603613 and 20083532018679 to GNE
Keywords:
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Other Papers In This Journal:
- Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum
- Improving and integrating data on invasive species collected by citizen scientists
- Molecular and morphological insights into the origin of the invasive greater white-toothed shrew ( Crocidura russula ) in Ireland
- Feral cat eradication in the presence of endemic San Nicolas Island foxes
- First larval record of Pterois volitans (Pisces: Scorpaenidae) collected from the ichthyoplankton in the Atlantic
- Evolution of enhanced reproduction in the hybrid-derived invasive, California wild radish ( Raphanus sativus )
- Tracking the expansion of the American mink ( Neovison vison) range in NW Portugal
- Interactions between invasive and native crustaceans: differential functional responses of intraguild predators towards juvenile hetero-specifics
- The invasive Australian redback spider, Latrodectus hasseltii Thorell 1870 (Araneae: Theridiidae): current and potential distributions, and likely impacts
- Aggressive interactions between two invasive species: the round goby ( Neogobius melanostomus ) and the spinycheek crayfish ( Orconectes limosus )
- Soil type, microsite, and herbivory influence growth and survival of Schinus molle (Peruvian pepper tree) invading semi-arid African savanna
- Geographic range and structure of cryptic genetic diversity among Pacific North American populations of the non-native amphipod Grandidierella japonica
- Non-linear effects of invasive lionfish density on native coral-reef fish communities
- A predatory land snail invades central-western Argentina
- Use of niche models in invasive species risk assessments
- Invaded range of the blackberry pathogen Phragmidium violaceum in the Pacific Northwest of the USA and the search for its provenance
- Invasion of the African sharp-tooth catfish Clarias gariepinus (Burchell, 1822) in South China
- Invader population speeds up life history during colonization
- The apparent demise of the Asian date mussel Musculista senhousia in Western Australia: or using acts of god as an eradication tool
- Alien plant invasions in tropical and sub-tropical savannas: patterns, processes and prospects
- Last Chance to Know? Using Literature to Explore the Biogeography and Invasion Biology of the Death Cap Mushroom Amanita phalloides (Vaill. ex Fr. :Fr.) Link
- Tidal and seasonal effects on survival rates of the endangered California clapper rail: does invasive Spartina facilitate greater survival in a dynamic environment?
- Phenotypic plasticity of reproductive traits in response to food availability in invasive and native species of nematode
- Non-native grass invasion alters native plant composition in experimental communities
- Non-native grass invasion alters native plant composition in experimental communities
- Trading in snails: plant nurseries as transport hubs for non-native species
- Ant community structure on a small Pacific island: only one native species living with the invaders
- Priority invasive alien plants in the Tuscan Archipelago (Italy): comparing the EPPO prioritization scheme with the Australian WRA
- Disturbance-mediated competition: the interacting roles of inundation regime and mechanical and herbicidal control in determining native and invasive plant abundance
- Native Cuscuta campestris restrains exotic Mikania micrantha and enhances soil resources beneficial to natives in the invaded communities
- Systematic culling controls a climate driven, habitat modifying invader
- Risk assessment of the crayfish pet trade based on data from the Czech Republic
- Distinct invasion sources of common ragweed (Ambrosia artemisiifolia) in Eastern and Western Europe
- The presence of the invasive plant Solanum elaeagnifolium deters honeybees and increases pollen limitation in the native co-flowering species Glaucium flavum
- Straddling the divide: invasive aquatic species in Illinois and movement between the Great Lakes and Mississippi basins
- Evidence for ongoing introduction of non-native earthworms in the Washington, DC metropolitan area
- Flooding compromises compensatory capacity of an invasive plant: implications for biological control
- Saving camels from straws: how propagule pressure-based prevention policies can reduce the risk of biological invasion
- Herbert H. T. Prins and Iain J. Gordon (eds.): Invasion biology and ecological theory. Insights from a continent in transformation
- Effects of warming and nitrogen on above- and below-ground herbivory of an exotic invasive plant and its native congener
- Effects of invasive seaweeds on feeding preference and performance of a keystone Mediterranean herbivore
- The Indian brown mongoose, yet another invader in Fiji
- Invasive earthworms as seed predators of temperate forest plants
- Challenges and trade-offs in the management of invasive alien trees
- Invasion of an indigenous Perna perna mussel bed on the south coast of South Africa by an alien mussel Mytilus galloprovincialis and its effect on the associated fauna
- Recovery of native forest after removal of an invasive tree, Falcataria moluccana, in American Samoa
- Light interception principally drives the understory response to boxelder invasion in riparian forests
- Eradications as reverse invasions: lessons from Pacific rat ( Rattus exulans ) removals on New Zealand islands
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