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277 results for “invasion genetics”
Supplementary material 1 from: Birand A, Cassey P, Ross JV, Thomas PQ, Prowse TAA (2022) Scalability of genetic biocontrols for eradicating invasive alien mammals. NeoBiota 74: 93-103. https://doi.org/10.3897/neobiota.74.82394
Tables S1, S2
Figure 3 in Reduced genetic diversity and the success of the invasive peacock bass (Cichliformes: Cichlidae)
Figure 3. Bayesian consensus tree reconstructed based on sequences of Cichla individuals from the submiddle stretch of São Francisco River and reference sequences for COI. Haplotype network using median-joining method. Circles represent haplotypes and diameter represents frequency of haplotype.
Fig. 1 in Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla)
Fig. 1. River basins in eastern and northern Brazil showing sample sites and genetic parameters of native and introduced populations: Allelic richness (RA), Nei's genetic diversity (HE), Number of private alleles (NPA) and percentage of polymorphic loci. Samples sites: TRM - Três Marias reservoir and ML - Marginal Lake (both in the São Francisco River); ITU - Itumbiara reservoir (Paraná River - upper Paraná River basin); RD - Rio Doce (Dom Helvécio Lake - Doce basin); FU - Furnas reservoir (Grande River - upper Paraná River basin); TO - Tucuruí reservoir (Tocantins River - Amazon basin).
Supplementary material 2 from: Hernández-Triana LM, Brugman VA, Nikolova NI, Ruiz-Arrondo I, Barrero E, Thorne T, de Marco MF, Krüger A, Lumley S, Johnson N, Fooks AR (2019) DNA barcoding of British mosquitoes (Diptera, Culicidae) to support species identification, discovery of cryptic genetic diversity and monitoring invasive species. ZooKeys 832: 57-76. https://doi.org/10.3897/zookeys.832.32257
: Data type: molecular data
Supplementary material 1 from: Hernández-Triana LM, Brugman VA, Nikolova NI, Ruiz-Arrondo I, Barrero E, Thorne T, de Marco MF, Krüger A, Lumley S, Johnson N, Fooks AR (2019) DNA barcoding of British mosquitoes (Diptera, Culicidae) to support species identification, discovery of cryptic genetic diversity and monitoring invasive species. ZooKeys 832: 57-76. https://doi.org/10.3897/zookeys.832.32257
: Data type: molecular data
Figure 2 from: Hernández-Triana LM, Brugman VA, Nikolova NI, Ruiz-Arrondo I, Barrero E, Thorne T, de Marco MF, Krüger A, Lumley S, Johnson N, Fooks AR (2019) DNA barcoding of British mosquitoes (Diptera, Culicidae) to support species identification, discovery of cryptic genetic diversity and monitoring invasive species. ZooKeys 832: 57-76. https://doi.org/10.3897/zookeys.832.32257
Figure 2 Neighbor joining tree of COI DNA barcodes (658 bp) for mosquito species. A divergence of > 2% may be indicative of separate operational taxonomic units. Only bootstrap values higher than 70% are shown.
Figure 1 from: Hernández-Triana LM, Brugman VA, Nikolova NI, Ruiz-Arrondo I, Barrero E, Thorne T, de Marco MF, Krüger A, Lumley S, Johnson N, Fooks AR (2019) DNA barcoding of British mosquitoes (Diptera, Culicidae) to support species identification, discovery of cryptic genetic diversity and monitoring invasive species. ZooKeys 832: 57-76. https://doi.org/10.3897/zookeys.832.32257
Figure 1 Location of study sites in the United Kingdom. Key: 1 ADAS Arthur Rickwood; 2 Church Farm; 3 Coombelands Farms; 4 Elmley Nature Reserve; 5 Glendell Livery, Mill Lane; 6 Frimley; 7 Mudchute Farm; 8 Northney Farm, Hayling Island; 9 White Lodge, Bisley; 10 Bartley Heath; 11 Dee Marsh.
Supplementary material 1 from: Zemanova MA (2019) Poor implementation of non-invasive sampling in wildlife genetics studies. Rethinking Ecology 4: 119-132. https://doi.org/10.3897/rethinkingecology.4.32751
: Data type: reference data
Supplementary material 2 from: Hayer S, Brandis D, Hartl GB, Ewers-Saucedo C (2019) First indication of Japanese mitten crabs in Europe and cryptic genetic diversity of invasive Chinese mitten crabs. NeoBiota 50: 1-29. https://doi.org/10.3897/neobiota.50.34881
: Data type: multimedia
Supplementary material 1 from: Hayer S, Brandis D, Hartl GB, Ewers-Saucedo C (2019) First indication of Japanese mitten crabs in Europe and cryptic genetic diversity of invasive Chinese mitten crabs. NeoBiota 50: 1-29. https://doi.org/10.3897/neobiota.50.34881
: Data type: species data
Data from: Global genetic analysis reveals the putative native source of the invasive termite, Reticulitermes flavipes, in France
Biological invasions are recognized as a major threat to both natural and managed ecosystems. Phylogeographic and population genetic analyses can provide information about the geographical origins and patterns of introduction and explain the causes and mechanisms by which introduced species have become successful invaders. Reticulitermes flavipes is a North American subterranean termite that has been introduced into several areas, including France where introduced populations have become invasive. To identify likely source populations in the USA and to compare the genetic diversity of both native and introduced populations, an extensive molecular genetic study was undertaken using the COII region of mtDNA and 15 microsatellite loci. Our results showed that native northern US populations appeared well differentiated from those of the southern part of the US range. Phylogenetic analysis of both mitochondrial and nuclear markers showed that French populations probably originated from southeastern US populations, and more specifically from Louisiana. All of the mtDNA haplotypes shared between the United States and France were found in Louisiana. Compared to native populations in Louisiana, French populations show lower genetic diversity at both mtDNA and microsatellite markers. These findings are discussed along with the invasion routes of R. flavipes as well as the possible mechanisms by which French populations have evolved after their introduction.
Data from: Inferring the origin of populations introduced from a genetically structured native range by approximate Bayesian computation: case study of the invasive ladybird Harmonia axyridis
Correct identification of the source population of an invasive species is a prerequisite for testing hypotheses concerning the factors responsible for biological invasions. The native area of invasive species may be large, poorly known and/or genetically structured. Because the actual source population may not have been sampled, studies based on molecular markers may generate incorrect conclusions about the origin of introduced populations. In this study, we characterized the genetic structure of the invasive ladybird Harmonia axyridis in its native area using various population genetic statistics and methods. We found that H. axyridis native area most likely consisted of two geographically distinct genetic clusters located in eastern and western Asia. We then performed approximate Bayesian computation (ABC) analyses on controlled simulated microsatellite data sets to evaluate: (i) the risk of selecting incorrect introduction scenarios, including admixture between sources, when the populations of the native area are genetically structured and sampling is incomplete, (ii) the ability of ABC analysis to minimize such risks by explicitly including unsampled populations in the scenarios compared. Finally, we performed additional ABC analyses on real microsatellite data sets to retrace the origin of biocontrol and invasive populations of H. axyridis, taking into account the possibility that the structured native area may have been incompletely sampled. We found that the invasive population in eastern North America, which has served as the bridgehead for worldwide invasion by H. axyridis, was probably formed by an admixture between the eastern and western native clusters. This admixture may have facilitated adaptation of the bridgehead population.
Data from: Population genetic analysis of a parasitic mycovirus to infer the invasion history of its fungal host
Hymenoscyphus fraxineus mitovirus 1 (HfMV1) occurs in the fungus Hymenoscyphus fraxineus, an introduced plant pathogen responsible for the devastating ash dieback epidemic in Europe. Here, we explored the prevalence and genetic structure of HfMV1 in order to elucidate the invasion history of both the virus and the fungal host. A total of 1298 H. fraxineus isolates (181 from Japan and 1117 from Europe) were screened for the presence of this RNA virus and 301 virus-positive isolates subjected to partial sequence analysis of the viral RNA polymerase gene. Our results indicate a high mean prevalence (78.7%) of HfMV1 across European H. fraxineus isolates, which is supported by the observed high transmission rate (average 83.8%) of the mitovirus into sexual spores of its host. In accordance with an expected founder effect in the introduced population in Europe, only 1.1% of the Japanese isolates were tested virus positive. In Europe, HfMV1 shows low nucleotide diversity but a high number of haplotypes, which seem to be subjected to strong purifying selection. Phylogenetic and clustering analysis detected two genetically distinct HfMV1 groups, both present throughout Europe. This pattern supports the hypothesis that only two (mitovirus-carrying) H. fraxineus individuals were introduced into Europe as previously suggested from the bi-allelic nature of the fungus. Moreover, our data points to reciprocal mating events between the two introduced individuals, which presumably initiated the ash dieback epidemic in Europe.
Salinity, not genetic incompatibilities, limits the establishment of the invasive hybrid cattail Typha × glauca in coastal wetlands
<p>A single pair of co-existing species that can successfully hybridize may produce many more hybrids in some regions than in others. The reasons for this are not well understood, but could help explain processes such as species diversification or the range expansion of invasive hybrids. The widespread cattails <i>Typha latifolia </i>and <i>T. angustifolia </i>seldom hybridize in some parts of their range, but in other areas produce the dominant hybrid <i>T. </i>× <i>glauca. </i>We used a combination of field and greenhouse experiments to investigate why <i>T. </i>× <i>glauca </i>has invaded wetlands in the Laurentian Great Lakes region of southern Ontario, Canada, but is much less common in the coastal wetlands of NS in eastern Canada. One potentially important environmental difference between these two regions is salinity. We therefore tested three hypotheses: 1) <i>T. latifolia </i>and <i>T. angustifolia </i>in NS are genetically incompatible; 2) the germination or growth of <i>T. </i>× <i>glauca </i>is reduced by salinity;<i> </i>and 3) <i>T. latifolia, </i>a main competitor of <i>T. </i>× <i>glauca</i>, is locally adapted to saline conditions in NS. Our experiments showed that NS <i>T. latifolia </i>and <i>T. angustifolia </i>are genetically compatible, and that saline conditions do not impede growth of hybrid plants. However, we also found that under conditions of high salinity, germination rates of hybrid seeds were substantially lower than those of NS <i>T. latifolia. </i> In addition, germination rates of NS<i> T. latifolia </i>were higher than those of Ontario <i>T. latifolia, </i>suggesting local adaptation to salinity in coastal wetlands. This study adds to the growing body of literature which identifies the important roles that local habitat and adaptation can play in the distributions and characteristics of hybrid zones. </p>
Supplementary material 15 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
Inferred genetic clusters from Aedes albopictus of the Connecticut temporal series
Supplementary material 13 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
Geographic genetic differentiation (IBD: isolation by distance) across the Northeast USA
Supplementary material 3 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
Microsatellite bins used to call alleles in Geneious v. 11.1.5 (Biomatters LTD)
Supplementary material 7 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
Isolation by distance analyses (IBD)
Supplementary material 6 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
Kinship analysis
Supplementary material 1 from: Gloria-Soria A, Shragai T, Ciota AT, Duval TB, Alto BW, Martins AJ, Westby KM, Medley KA, Unlu I, Campbell SR, Kawalkowski M, Tsuda Y, Higa Y, Indelicato N, Leisnham PT, Caccone A, Armstrong PM (2022) Population genetics of an invasive mosquito vector, Aedes albopictus in the Northeastern USA. NeoBiota 78: 99-127. https://doi.org/10.3897/neobiota.78.84986
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