Fine-scale clonal structure and diversity of invasive plant Mikania micrantha H.B.K. and its plant parasite Cuscuta campestris Yunker

Li, Junmin; Dong, Ming

doi:10.1007/s10530-008-9283-5

Cited by 15 publications

(10 citation statements)

References 37 publications

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“…; Nieberding & Olivieri ; Criscione & Blouin ; Whiteman et al . ; Li & Dong ). In general, a significantly shared structure between the populations of the host and the pathogen was found in those cases where the distribution and migration of the host imposed a major constraint on the distribution of the pathogen.…”

Section: Introductionmentioning

confidence: 99%

“…This should especially be the case in close species associations such as host/ parasites or symbiotic systems (Parker & Spoerke 1998;Funk et al 2000;Thompson et al 2005;Criscione & Blouin 2007). To date, many studies on the spatial genetic structure of associated species examined hostparasite associations (Dybdahl & Lively 1996;Althoff & Thompson 1999;Jerome & Ford 2002;Johnson et al 2002;Mutikainen & Koskela 2002;McCoy et al 2005;Nieberding & Olivieri 2006;Criscione & Blouin 2007;Whiteman et al 2007;Li & Dong 2009). In general, a significantly shared structure between the populations of the host and the pathogen was found in those cases where the distribution and migration of the host imposed a major constraint on the distribution of the pathogen.…”

Section: Introductionmentioning

confidence: 99%

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European phylogeography of the epiphytic lichen fungusLobaria pulmonariaand its green algal symbiont

et al. 2012

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In lichen symbiosis, fungal and algal partners form close associations, often codispersed by vegetative propagules. Due to the particular interdependence, processes such as colonization, dispersal or genetic drift are expected to result in congruent patterns of genetic structure in the symbionts. To study the population structure of an obligate symbiotic system in Europe, we genotyped the fungal and algal symbionts of the epiphytic lichen Lobaria pulmonaria at eight and seven microsatellite loci, respectively, and analysed about 4300 L. pulmonaria thalli from 142 populations from the species' European distribution range. Based on a centroid approach, which localizes centres of genetic differentiation with a high frequency of geographically restricted alleles, we identified the South Italy-Balkan region as the primary glacial refugial area of the lichen symbiosis. Procrustean rotation analysis and a distance congruence test between the fungal and algal population graphs indicated general concordance between the phylogeographies of the symbionts. The incongruent patterns found in areas of postglacial recolonization may show the presence of an additional refugial area for the fungal symbiont, and the impact that horizontal photobiont transmission and different mutation rates of the symbionts have on their genotypic associations at a continental scale.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

European phylogeography of the epiphytic lichen fungusLobaria pulmonariaand its green algal symbiont

et al. 2012

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“…Both theoretical and practical studies of Cuscuta species have emphasized their control and eradication (Marvier and Smith 1997). Scientific attention on Cuscuta species shifted when C. australis, C. campestris, and C. chinensis were discovered parasitizing and restraining the exotic invasive Mikania micrantha in southern China (Wang et al 2004), which evoked great interest in the potential of Cuscuta species as a control agent against exotic invasive plants (Shen et al 2006;Li and Dong 2009;Yu et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Cuscuta australis restrains three exotic invasive plants and benefits native species

Liu

et al. 2010

Biol Invasions

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In this study we conducted field investigations to examine the effects of native Cuscuta australis on three exotic invasive plants (i.e. Ipomoea cairica, Mikania micrantha, and Wedelia trilobata) and on the invaded native communities. The results showed that C. australis produced high infection rates on the exotic invasive hosts but low ones on the native species. Furthermore, the results showed that C. australis exhibited vigorous growth and high reproduction when it grew on M. micrantha and W. trilobata, indicating that these exotic invasive plants are more rewarding hosts than are native plants for C. australis. C. australis infection was positively related to the growth traits (e.g. biomass, cover, and total leaf area) and nutrient contents (e.g. N, P, and K) of the exotic invasive plants. The infections of C. australis significantly decreased the growth and nutrient contents of exotic invasive hosts, and the host-parasite interactions benefited the native species with increased species richness and biodiversity, facilitating the recovery of invaded native communities. This study provides a model for a native agent to both resist exotic invasive plants and benefit other native species. Furthermore, it indicates that certain native agents in invaded regions can be an effective and environmentally benign alternative to traditional biological control.

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“…Although per locus information is lower when compared to co-dominant DNA markers (e.g. isozymes, microsatellites), dominant DNA markers such as random amplifi ed polymorphic DNAs (RAPDs), inter simple sequence repeats (ISSRs) and amplifi ed fragment length polymorphisms (AFLPs) have been successfully employed to reveal clonal structure and genetic diversity in plant populations (Bachmann 1994;Deshpande et al 2001;Ci et al 2008;Li and Dong 2009). All these dominant markers require no prior sequence information.…”

Section: Introductionmentioning

confidence: 99%

Genetic and clonal diversity of the endemic ant-plant Humboldtia brunonis (Fabaceae) in the Western Ghats of India

2010

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Humboldtia brunonis (Fabaceae, Caesalpinioideae) is a dominant self-incompatible ant-plant or myrmecophyte, growing as an understorey tree in high-density patches. It is endemic to the biodiversity hotspot of the southern Western Ghats of India and, besides ants, harbours many endemic invertebrate taxa, such as bees that pollinate it as well as arboreal earthworms, within swollen hollow stem internodes called domatia. Using inter simple sequence repeat (ISSR) markers, three geographically separated populations were found to be multiclonal, characterized by high levels of clonal diversity. Values for the Simpson diversity index ranged between 0.764 and 0.964, and for Fager's evenness index between 0.00 and 0.036 for neighbourhoods within populations. This myrmecophyte was found to combine sexual recruitment (66.7%) and clonal production (33.3%) as methods of reproduction. Moderate amounts of genetic diversity at the species level were observed, with 52.63% polymorphism, and moderate values of Shannon's diversity index (0.1895) as well as of Nei's gene diversity (0.1186). In each population, observed genotypic diversity was significantly lower than expected, indicating significant genetic structure. Neighbour-joining trees demonstrated that Agumbe, which is the most northern population examined and geographically twice as far away from the other two populations, grouped separately and with larger bootstrap support from a larger cluster consisting of the Sampaji and Solaikolli populations, which are closer to each other geographically. Some neighbourhoods within each population showed spatial genetic structure even at small spatial scales of less than 5 m. A combination of clonality and short-distance pollen movement by small pollinating bees (Braunsapis puangensis) coupled with primary ballistic seed dispersal, and possible secondary seed dispersal by rodents, may contribute to spatial genetic structure at such small scales. The clonality of H. brunonis may be a factor that contributes to its dominance in Western Ghat forests where it supports a rich diversity of invertebrate fauna.

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Fine-scale clonal structure and diversity of invasive plant Mikania micrantha H.B.K. and its plant parasite Cuscuta campestris Yunker

Cited by 15 publications

References 37 publications

European phylogeography of the epiphytic lichen fungusLobaria pulmonariaand its green algal symbiont

European phylogeography of the epiphytic lichen fungusLobaria pulmonariaand its green algal symbiont

Cuscuta australis restrains three exotic invasive plants and benefits native species

Genetic and clonal diversity of the endemic ant-plant Humboldtia brunonis (Fabaceae) in the Western Ghats of India

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