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Gaskin JF, Schwarzländer M, Gibson RD, Simpson H, Marshall DL, Gerber E, Hinz H. Geographic population structure in an outcrossing plant invasion after centuries of cultivation and recent founding events. AOB PLANTS 2018; 10:020. [PMID: 29623183 PMCID: PMC5881623 DOI: 10.1093/aobpla/ply020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
Population structure and genetic diversity of invasions are the result of evolutionary processes such as natural selection, drift and founding events. Some invasions are also molded by specific human activities such as selection for cultivars and intentional introduction of desired phenotypes, which can lead to low genetic diversity in the resulting invasion. We investigated the population structure, diversity and origins of a species with both accidental and intentional introduction histories, as well as long-term selection as a cultivar. Dyer's woad (Isatis tinctoria; Brassicaceae) has been used as a dye source for at least eight centuries in Eurasia, was introduced to eastern USA in the 1600s, and is now considered invasive in the western USA. Our analyses of amplified fragment length polymorphisms (AFLPs) from 645 plants from the USA and Eurasia did not find significantly lower gene diversity (Hj) in the invaded compared to the native range. This suggests that even though the species was under cultivation for many centuries, human selection of plants may not have had a strong influence on diversity in the invasion. We did find significantly lower genetic differentiation (Fst) in the invasive range but our results still suggested that there are two distinct invasions in the western USA. Our data suggest that these invasions most likely originated from Switzerland, Ukraine and Germany, which correlates with initial biological control agent survey findings. Genetic information on population structure, diversity and origins assists in efforts to control invasive species, and continued combination of ecological and molecular analyses will help bring us closer to sustainable management of plant invasions.
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Affiliation(s)
- John F Gaskin
- US Department of Agriculture, Agricultural Research Service, Sidney, MT, USA
| | - Mark Schwarzländer
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, USA
| | - Robert D Gibson
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, USA
| | - Heather Simpson
- Department of Biology, University of New Mexico, MSC 2020, University of New Mexico, Albuquerque, NM, USA
| | - Diane L Marshall
- Department of Biology, University of New Mexico, MSC 2020, University of New Mexico, Albuquerque, NM, USA
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Mazzolari AC, Marrero HJ, Vázquez DP. Potential contribution to the invasion process of different reproductive strategies of two invasive roses. Biol Invasions 2016. [DOI: 10.1007/s10530-016-1315-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Shaik RS, Zhu X, Clements DR, Weston LA. Understanding invasion history and predicting invasive niches using genetic sequencing technology in Australia: case studies from Cucurbitaceae and Boraginaceae. CONSERVATION PHYSIOLOGY 2016; 4:cow030. [PMID: 27766152 PMCID: PMC5069847 DOI: 10.1093/conphys/cow030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 06/20/2016] [Accepted: 06/27/2016] [Indexed: 05/07/2023]
Abstract
Part of the challenge in dealing with invasive plant species is that they seldom represent a uniform, static entity. Often, an accurate understanding of the history of plant introduction and knowledge of the real levels of genetic diversity present in species and populations of importance is lacking. Currently, the role of genetic diversity in promoting the successful establishment of invasive plants is not well defined. Genetic profiling of invasive plants should enhance our understanding of the dynamics of colonization in the invaded range. Recent advances in DNA sequencing technology have greatly facilitated the rapid and complete assessment of plant population genetics. Here, we apply our current understanding of the genetics and ecophysiology of plant invasions to recent work on Australian plant invaders from the Cucurbitaceae and Boraginaceae. The Cucurbitaceae study showed that both prickly paddy melon (Cucumis myriocarpus) and camel melon (Citrullus lanatus) were represented by only a single genotype in Australia, implying that each was probably introduced as a single introduction event. In contrast, a third invasive melon, Citrullus colocynthis, possessed a moderate level of genetic diversity in Australia and was potentially introduced to the continent at least twice. The Boraginaceae study demonstrated the value of comparing two similar congeneric species; one, Echium plantagineum, is highly invasive and genetically diverse, whereas the other, Echium vulgare, exhibits less genetic diversity and occupies a more limited ecological niche. Sequence analysis provided precise identification of invasive plant species, as well as information on genetic diversity and phylogeographic history. Improved sequencing technologies will continue to allow greater resolution of genetic relationships among invasive plant populations, thereby potentially improving our ability to predict the impact of these relationships upon future spread and better manage invaders possessing potentially diverse biotypes and exhibiting diverse breeding systems, life histories and invasion histories.
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Affiliation(s)
- Razia S. Shaik
- Graham Centre for Agricultural Innovation (Charles Sturt University and NSW Department of Primary Industries), Locked Bag 588, Wagga Wagga, NSW 2678, Australia
| | - Xiaocheng Zhu
- Graham Centre for Agricultural Innovation (Charles Sturt University and NSW Department of Primary Industries), Locked Bag 588, Wagga Wagga, NSW 2678, Australia
| | - David R. Clements
- Department of Biology, Trinity Western University, Langley, BC, CanadaV2Y 1Y1
| | - Leslie A. Weston
- Graham Centre for Agricultural Innovation (Charles Sturt University and NSW Department of Primary Industries), Locked Bag 588, Wagga Wagga, NSW 2678, Australia
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Nujkić MM, Dimitrijević MD, Alagić SČ, Tošić SB, Petrović JV. Impact of metallurgical activities on the content of trace elements in the spatial soil and plant parts of Rubus fruticosus L. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:350-360. [PMID: 26982885 DOI: 10.1039/c5em00646e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The concentrations of the trace elements (TEs), Cu, Zn, Pb, As, Cd, Ni, were determined in parts of Rubus fruticosus L. and in topsoil, collected from eight different locations around the copper smelter in Bor, Serbia. Extremely high concentrations of Cu were determined in the soil and in R. fruticosus L., and for arsenic at some locations. The enrichment factors for TEs in soil showed enrichment with Cu, Zn, Pb, and As among which extremely high values were determined for Cu (EFsoil = 8.5-126.1) and As (EFsoil = 6.6-44.4). The enrichment factors for the parts of R. fruticosus L. showed enrichment with all TEs, except for nickel. The most extreme enrichment was found to occur in roots and stems for Cu (EFplant = 56.2 and 51.1) and leaves for Pb (EFplant = 45.68). The mean values of the three ratios of concentrations between plant parts for all TEs indicated pollution via the atmosphere while leaves appeared to be the best indicators for this kind of pollution. Numerous and very strong Pearson's correlations between TEs in the R. fruticosus L. parts confirmed these results. Principal Component Analysis showed that the major pollution source is the copper smelter that contaminates vegetation through soil and air.
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Affiliation(s)
- M M Nujkić
- Department of Chemical Technology, Technical Faculty Bor, University of Belgrade, V. J. 12, 19210 Bor, Serbia.
| | - M D Dimitrijević
- Department of Chemical Technology, Technical Faculty Bor, University of Belgrade, V. J. 12, 19210 Bor, Serbia.
| | - S Č Alagić
- Department of Chemical Technology, Technical Faculty Bor, University of Belgrade, V. J. 12, 19210 Bor, Serbia.
| | - S B Tošić
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Nis, Višegradska 33, 18000 Niš, Serbia
| | - J V Petrović
- Laboratory for Chemical Testing, Mining and Metallurgy Institute, Zeleni Bulevar 35, 19210 Bor, Serbia
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McNellis B, Howard AR. Phylogenetic and ecological patterns in nighttime transpiration among five members of the genus Rubus co-occurring in western Oregon. Ecol Evol 2015; 5:3557-69. [PMID: 26380686 PMCID: PMC4567861 DOI: 10.1002/ece3.1608] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 05/19/2015] [Accepted: 05/27/2015] [Indexed: 11/22/2022] Open
Abstract
Nighttime transpiration is a substantial portion of ecosystem water budgets, but few studies compare water use of closely related co-occurring species in a phylogenetic context. Nighttime transpiration can range up to 69% of daytime rates and vary between species, ecosystem, and functional type. We examined leaf-level daytime and nighttime gas exchange of five species of the genus Rubus co-occurring in the Pacific Northwest of western North America in a greenhouse common garden. Contrary to expectations, nighttime transpiration was not correlated to daytime water use. Nighttime transpiration showed pronounced phylogenetic signals, but the proportion of variation explained by different phylogenetic groupings varied across datasets. Leaf osmotic water potential, water potential at turgor loss point, stomatal size, and specific leaf area were correlated with phylogeny but did not readily explain variation in nighttime transpiration. Patterns in interspecific variation as well as a disconnect between rates of daytime and nighttime transpiration suggest that variation in nighttime water use may be at least partly driven by genetic factors independent of those that control daytime water use. Future work with co-occurring congeneric systems is needed to establish the generality of these results and may help determine the mechanism driving interspecific variation in nighttime water use.
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Affiliation(s)
- Brandon McNellis
- Department of Biology, Western Oregon UniversityMonmouth, Oregon, 97361
- Department of Biology, University of California-RiversideRiverside, California, 92507
| | - Ava R Howard
- Department of Biology, Western Oregon UniversityMonmouth, Oregon, 97361
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Xu CY, Tang S, Fatemi M, Gross CL, Julien MH, Curtis C, van Klinken RD. Population structure and genetic diversity of invasivePhyla canescens: implications for the evolutionary potential. Ecosphere 2015. [DOI: 10.1890/es14-00374.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Sochor M, Vašut RJ, Sharbel TF, Trávníček B. How just a few makes a lot: Speciation via reticulation and apomixis on example of European brambles (Rubus subgen. Rubus, Rosaceae). Mol Phylogenet Evol 2015; 89:13-27. [DOI: 10.1016/j.ympev.2015.04.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 03/31/2015] [Accepted: 04/06/2015] [Indexed: 10/23/2022]
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Population genetics of invasive Citrullus lanatus, Citrullus colocynthis and Cucumis myriocarpus (Cucurbitaceae) in Australia: inferences based on chloroplast and nuclear gene sequencing. Biol Invasions 2015. [DOI: 10.1007/s10530-015-0891-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Morin L, Gomez DR, Evans KJ, Neill TM, Mahaffee WF, Linde CC. Invaded range of the blackberry pathogen Phragmidium violaceum in the Pacific Northwest of the USA and the search for its provenance. Biol Invasions 2013. [DOI: 10.1007/s10530-013-0413-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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