scholarly journals Global mt DNA genetic structure and hypothesized invasion history of a major pest of citrus, Diaphorina citri (Hemiptera: Liviidae)

2017 ◽  
Vol 8 (1) ◽  
pp. 257-265 ◽  
Author(s):  
Yufa Luo ◽  
Ingi Agnarsson
Keyword(s):  
Genetic Structure ◽  
Invasion History ◽  
Diaphorina Citri ◽  
Mt Dna ◽  
History Of ◽  
Major Pest

scholarly journals Invasion History of Sirex noctilio Based on COI Sequence: The First Six Years in China

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 111 ◽  
Author(s):  
Xueting Sun ◽  
Jing Tao ◽  
Alain Roques ◽  
Youqing Luo
Keyword(s):  
Genetic Structure ◽  
Economic Loss ◽  
Environmental Damage ◽  
Invasion History ◽  
Sirex Noctilio ◽  
Chinese Populations ◽  
Genetic Diversity And Structure ◽  
The World ◽  
Gene Coi ◽  
History Of

Sirex noctilio F. (Hymenoptera: Siricidae: Siricinae), a new invasive species in China, is a significant international forestry pest which, transported via logs and related wood packing materials, has led to environmental damage and substantial economic loss in many countries around the world. It was first detected in China in 2013, and since then infestations have been found in 18 additional sites. Using a 322 bp fragment of the mitochondrial barcode gene COI, we studied the genetic diversity and structure of S. noctilio populations in both native and invaded ranges, with a specific focus in China. Twelve haplotypes were found across the native and invaded distribution of the pest, of which three were dominant; among these there were only one or two mutational steps between each pair of haplotypes. No obvious genetic structure was found other than in Chinese populations. China has a unique and dominant haplotype not found elsewhere, and compared with the rest of the world, the genetic structure of Chinese populations suggested a multiple invasion scenario.

scholarly journals Genetic structure, behaviour and invasion history of the Argentine ant supercolony in Australia

2010 ◽  
Vol 4 (3) ◽  
pp. 471-484 ◽  
Author(s):  
Elissa L. Suhr ◽  
Dennis J. O’Dowd ◽  
Stephen W. McKechnie ◽  
Duncan A. Mackay
Keyword(s):  
Genetic Structure ◽  
Argentine Ant ◽  
Invasion History ◽  
History Of

scholarly journals Evidence for multiple introductions of an invasive wild bee species currently under rapid range expansion in Europe

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Julia Lanner ◽  
Fabian Gstöttenmayer ◽  
Manuel Curto ◽  
Benoît Geslin ◽  
Katharina Huchler ◽  
...  
Keyword(s):  
Cluster Formation ◽  
Invasion History ◽  
European Continent ◽  
Multiple Introductions ◽  
Wild Bee ◽  
Invasion Stage ◽  
Middle Europe ◽  
History Of ◽  
Genetic Clusters ◽  
Colonization Dynamics

Abstract Background Invasive species are increasingly driving biodiversity decline, and knowledge of colonization dynamics, including both drivers and dispersal modes, are important to prevent future invasions. The bee species Megachile sculpturalis (Hymenoptera: Megachilidae), native to East-Asia, was first recognized in Southeast-France in 2008, and has since spread throughout much of Europe. The spread is very fast, and colonization may result from multiple fronts. Result To track the history of this invasion, codominant markers were genotyped using Illumina sequencing and the invasion history and degree of connectivity between populations across the European invasion axis were investigated. Distinctive genetic clusters were detected with east–west differentiations in Middle-Europe. Conclusion We hypothesize that the observed cluster formation resulted from multiple, independent introductions of the species to the European continent. This study draws a first picture of an early invasion stage of this wild bee and forms a foundation for further investigations, including studies of the species in their native Asian range and in the invaded range in North America.

scholarly journals A rapid loss of stripes: the evolutionary history of the extinct quagga

2005 ◽  
Vol 1 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Jennifer A Leonard ◽  
Nadin Rohland ◽  
Scott Glaberman ◽  
Robert C Fleischer ◽  
Adalgisa Caccone ◽  
...  
Keyword(s):  
South African ◽  
Dna Sequences ◽  
Evolutionary History ◽  
Climate Changes ◽  
Rapid Loss ◽  
Mt Dna ◽  
Pleistocene Climate ◽  
Equus Burchelli ◽  
History Of ◽  
Plains Zebra

Twenty years ago, the field of ancient DNA was launched with the publication of two short mitochondrial (mt) DNA sequences from a single quagga ( Equus quagga ) museum skin, an extinct South African equid ( Higuchi et al . 1984 Nature 312 , 282–284). This was the first extinct species from which genetic information was retrieved. The DNA sequences of the quagga showed that it was more closely related to zebras than to horses. However, quagga evolutionary history is far from clear. We have isolated DNA from eight quaggas and a plains zebra (subspecies or phenotype Equus burchelli burchelli ). We show that the quagga displayed little genetic diversity and very recently diverged from the plains zebra, probably during the penultimate glacial maximum. This emphasizes the importance of Pleistocene climate changes for phylogeographic patterns in African as well as Holarctic fauna.

Genetic variability and demographic history of Heliothis virescens (Lepidoptera: Noctuidae) populations from Brazil inferred by mtDNA sequences

2011 ◽  
Vol 102 (3) ◽  
pp. 333-343 ◽  
Author(s):  
K.C. Albernaz ◽  
K.L. Silva-Brandão ◽  
P. Fresia ◽  
F.L. Cônsoli ◽  
C. Omoto
Keyword(s):  
Genetic Structure ◽  
Genetic Variability ◽  
Heliothis Virescens ◽  
Demographic History ◽  
Haplotype Diversity ◽  
Low Frequency ◽  
Haplotype Network ◽  
Demographic Expansion ◽  
Significant Genetic Structure ◽  
History Of

AbstractIntra- and inter-population genetic variability and the demographic history of Heliothis virescens (F.) populations were evaluated by using mtDNA markers (coxI, coxII and nad6) with samples from the major cotton- and soybean-producing regions in Brazil in the growing seasons 2007/08, 2008/09 and 2009/10. AMOVA indicated low and non-significant genetic structure, regardless of geographical scale, growing season or crop, with most of genetic variation occurring within populations. Clustering analyzes also indicated low genetic differentiation. The haplotype network obtained with combined datasets resulted in 35 haplotypes, with 28 exclusive occurrences, four of them sampled only from soybean fields. The minimum spanning network showed star-shaped structures typical of populations that underwent a recent demographic expansion. The recent expansion was supported by other demographic analyzes, such as the Bayesian skyline plot, the unimodal distribution of paired differences among mitochondrial sequences, and negative and significant values of neutrality tests for the Tajima's D and Fu's FS parameters. In addition, high values of haplotype diversity (Ĥ) and low values of nucleotide diversity (π), combined with a high number of low frequency haplotypes and values of θπ<θW, suggested a recent demographic expansion of H. virescens populations in Brazil. This demographic event could be responsible for the low genetic structure currently found; however, haplotypes present uniquely at the same geographic regions and from one specific host plant suggest an initial differentiation among H. virescens populations within Brazil.

Replacement of estuarine communities by an exotic shrub: distribution and invasion history of Baccharis halimifolia in Europe

2012 ◽  
Vol 15 (6) ◽  
pp. 1183-1188 ◽  
Author(s):  
L. Caño ◽  
J. A. Campos ◽  
D. García-Magro ◽  
M. Herrera
Keyword(s):  
Invasion History ◽  
Baccharis Halimifolia ◽  
History Of

scholarly journals Population Genetic Structure and Colonisation History of the Tool-Using New Caledonian Crow

PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e36608 ◽  
Author(s):  
Jawad Abdelkrim ◽  
Gavin R. Hunt ◽  
Russell D. Gray ◽  
Neil J. Gemmell
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
New Caledonian Crow ◽  
Caledonian Crow ◽  
History Of

Genetic structure and population history of wintering Asian Great Bustard (Otis tarda dybowskii) in China: implications for conservation

2017 ◽  
Vol 158 (3) ◽  
pp. 761-772 ◽  
Author(s):  
Gang Liu ◽  
Xiaolong Hu ◽  
Aaron B. A. Shafer ◽  
Minghao Gong ◽  
Morigen Han ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Population History ◽  
Great Bustard ◽  
Otis Tarda ◽  
History Of

scholarly journals A DNA investigation into the mysterious disappearance of the Rocky Mountain grasshopper, mega-pest of the 1800s

2017 ◽  
Author(s):  
W. Chapco ◽  
G. Litzenberger
Keyword(s):  
Dna Sequences ◽  
Nucleotide Diversity ◽  
Rocky Mountain ◽  
Species Group ◽  
Pest Species ◽  
History Of Agriculture ◽  
Extant Species ◽  
Remarkable Event ◽  
History Of ◽  
Major Pest

The mysterious extinction of the Rocky Mountain Grasshopper, Melanoplus spretus, a major pest species on the prairies and plains of the 1800s, is truly a remarkable event in the history of agriculture. Recently, we obtained specimens of M. spretus from museums and from 400-year-old glacial deposits in Wyoming. We report success in obtaining mitochondrial DNA sequences from both sources. This permitted us to examine two issues surrounding the species’ disappearance. First, a long-standing view that M. spretus and the extant species Melanoplus sanguinipes are (if not phase transforms of one another) sister taxa, is disputed, but cannot be rejected with certainty. Interestingly, there is some evidence that suggests there may be a closer affinity with another member of the Mexicanus species-group, Melanoplus bruneri. Second, because M. spretus still possesses considerable nucleotide diversity (1.15 ± 0.19%), a depletion of variation cannot be considered a factor contributing to its demise.

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