scholarly journals From east to west across the Palearctic: Phylogeography of the invasive lime leaf miner Phyllonorycter issikii (Lepidoptera: Gracillariidae) and discovery of a putative new cryptic species in East Asia

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0171104 ◽  
Author(s):  
Natalia Kirichenko ◽  
Paolo Triberti ◽  
Issei Ohshima ◽  
Julien Haran ◽  
Bong-Kyu Byun ◽  
...  
2015 ◽  
Vol 112 (4) ◽  
pp. 591-598 ◽  
Author(s):  
Levente SZOCS ◽  
Melika GEORGE ◽  
Csaba THUROCZY ◽  
Gyorgy CSOKA

Author(s):  
Д.Д. Буй ◽  
Н.В. Денисова ◽  
С.В. Барышникова ◽  
С.В. Шевченко ◽  
А.В. Селиховкин

В последние три десятилетия произошли существенные изменения в видовом составе доминирующих вредителей древесных растений Санкт-Петербурга и окрестностей. За это время в насаждениях города появились три новых инвазионных вредителя из семейства молей-пестрянок (Gracillariidae), минирующих листья древесных растений: липовая моль-пестрянка Phyllonorycter issikii, каштановая минирующая моль Cameraria ohridella и дубовая широкоминирующая моль Acrocercops brongniardella. Впервые в Санкт-Петербурге эти виды отмечены в 2000, 2013 и 2018 гг. соответственно. Все три вида дают вспышки массового размножения во вторичном ареале. Кроме того, началось массовое размножение ещё одного вида из этого же семейства тополёвой нижнесторонней моли-пестрянки Phyllonorycter populifoliella. В других систематических группах вредителей также преобладают скрытноживущие виды: минирующие листья листоеды Zeugophora subspinosa и листоед большеног Zeugophora flavicollis на тополе, пилильщики Ardis pallipes, Arge ochropus и Blennocampa phyllocolpa на розе морщинистой, запятовидная щитовка Lepidosaphes ulmi и тля Eriosoma lanigerum на боярышнике. При этом ранее эти насекомые как вредители насаждений Санкт-Петербурга не отмечались. С другой стороны, ряд видов насекомых-филлофагов, в особенности открытоживущих, для которых ранее было отмечено резкое неоднократное увеличение плотности популяций, за последние 40 лет не встречались в городских насаждениях, например, три вида волнянок (Erebidae) шелкопряд-монашенка Lymantria monacha, ивовая волнянка Leucoma salicis и античная волнянка Orgyia antiqua. Ещё одна значимая группа вредителей сосущие насекомые, которые широко представлены в городских насаждениях и периодически дают значимые увеличения численности. Изменение видового состава доминирующих групп вредителей в городской среде может быть связано с тремя основными внешними факторами, воздействующими на популяции это изменение породного состава насаждений, изменение климата и повышение уровня загрязнения и других антропогенных нагрузок на насаждения. Последний фактор, весьма вероятно, и обусловливает доминирование скрытноживущих и сосущих вредителей. In the last three decades, significant changes have occurred in the species composition of the dominant pests of woody plants in St. Petersburg and its environs. During this time, three new, invasive pests from the moth family Gracillariidae that mine the leaves of woody plants appeared on the plantings of the city: the lime leaf miner Phyllonorycter issikii, the horse-chestnut leaf miner Cameraria ohridella and the leaf blotch miner moth Acrocercops brongniardella. These species for the first time were recorded in St. Petersburg in 2000, 2013, and 2018 respectively. All three species give outbreaks in the secondary range. In addition, the outbreak of another species from the same family, the poplar mining moth Phyllonorycter populifoliella, began. Species leading a secretive life are also dominated in other systematic pest groups: leave miners the leaf beetles Zeugophora subspinosa and Zeugophora flavicollis on the poplar, sawflies Ardis pallipes, Arge ochropus and Blennocampa phyllocolpa on the rugosa rose, the apple mussel scale Lepidosaphes ulmi and the aphid Eriosoma lanigerum on the hawthorn. Moreover, earlier these insects as pests of the stands of St. Petersburg were not noted. On the other hand, a number of phyllophagous insect species, especially open-living insects, for which a sharp repeated increase in population density was previously noted, have not been found in urban plantations over the past 40 years, for example, three species of family Erebidae the nun moth Lymantria monacha, the satin moth Leucoma salicis and the rusty tussock moth Orgyia antiqua. Another significant group of pests is sucking insects, which are widely represented in urban plantations and periodically give significant increases in numbers. The change in the species composition of the dominant pest groups in the urban environment can be associated with three main external factors affecting populations: a change in the species composition of the stands, climate change, and an increase in the level of pollution and other anthropogenic pressures on the stands. The latter factor, very likely, determines the dominance of secretive and sucking pests.


2019 ◽  
pp. 17-19
Author(s):  
A. Tkalenko ◽  
V. Ignat ◽  
D. Lohtenko

Goal. To monitor the phytosanitary state of parks and gardens plantations in the Ukrainian Forest-steppe zone and to identify species consistence of the dominant invaders. Methods. Reconnaissances, collection of materials and other attendances were carried out by using generally known ecology and entomology methods using determinants and atlases. Accounting results were subjected to variation-statistical analysis by special application program package according to the statistics and computer graphics: Microsoft Excel 2010, Statgraphics plus. Results. As a result of the phytosanitary state of the parks and gardens plantations in the forest-steppe zone were determined phytophagans species composition including 14 species of invaders among which were dominated Lepidopterans species (70.4%). Less numerous species were expanded forms of Coleoptera — 13.4%, Dipteran — 12.8% and other species which were 3.4%. The most widespread gardens and parks plantations invaders are: chestnut leaf miner (Cameraria ohridella Deschka & Dimic), fall webworm moth (Hyphantria cunea Drury.), linden moth (Phyllonorycter issikii Kumata), acacia lotus borer (Etiella zinckenella Tr.). Among the fastest spreading invaders is boxen lotus borer (Cydalima perspectalis Walker) (common box) from South-East Asia. In Ukraine this species was discovered in 2016 in Transcarpathia region. Conclusion. Over the last years destructive plant feeders such as: horse chestnut leaf miner, fall webworm moth, linden moth and others became more spreading within the parks and gardens plantations of the Ukrainian Forest-steppe zone. The significant injury by adventive species — boxen lotus bore was discovered. The lack of well-timed gardens and parks monitoring in the Ukrainian Forest-steppe zone led to mass distribution of lots of harmful species both quarantine and invasitions.


Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 113 ◽  
Author(s):  
Shun-Xia Ji ◽  
Xiao-Di Wang ◽  
Xiao-Na Shen ◽  
Lin Liang ◽  
Wan-Xue Liu ◽  
...  

Invasive species often encounter rapid environmental changes during invasions and only the individuals that successfully overcome environmental stresses can colonize and spread. Chromatin remodeling may be essential in environmental adaptation. To assess the functions of imitation switch (ISWI) in invasive Bemisia tabaci Middle East–Asia Minor 1 (MEAM1) cryptic species, we cloned and characterized the MEAM1 BtISWI gene and determined its functions in response to thermal stress. The full-length cDNA of BtISWI was 3712 bp, with a 3068 bp open reading frame (ORF) encoding a 118.86 kDa protein. BtISWI mRNA expression was significantly up-regulated after exposure to heat shock or cold shock conditions, indicating that BtISWI expression can be induced by thermal stress. After feeding double-stranded RNA (dsRNA), specifically for BtISWI, resistance to both heat and cold decreased significantly, suggesting that BtISWI may function directly in the thermal tolerance of MEAM1. Moreover, the preferred temperature of MEAM1 adults fed dsRNA was 1.9–3.5 °C higher than the control groups. Taken together, our findings highlight the importance of epigenetic gene regulation in the thermal response or thermal adaptation of invasive Bemisia tabaci (B. tabaci), and provide a new potential target for establishing sustainable control strategies for B. tabaci.


2022 ◽  
Author(s):  
Qiong Yang ◽  
Jessica Chung ◽  
Katie Robinson ◽  
Thomas L Schmidt ◽  
Perran Ross ◽  
...  

The arbovirus vector Aedes albopictus (Asian tiger mosquito) is common throughout the Indo-Pacific region, where most global dengue transmission occurs. We analysed population genomic data and tested for cryptic species in 160 Ae. albopictus sampled from 16 locations across this region. We found no evidence of cryptic Ae. albopictus but found multiple intraspecific COI haplotypes partitioned into groups representing three Asian lineages: East Asia, Southeast Asia and Indonesia. Papua New Guinea (PNG), Vanuatu and Christmas Island shared recent coancestry, and Indonesia and Timor-Leste were likely invaded from East Asia. We used a machine learning trained on morphologically sexed samples to classify sexes using multiple genetic features and then characterized the w AlbA and w AlbB Wolbachia infections in 664 other samples. The w AlbA and w AlbB infections as detected by qPCR showed markedly different patterns in the sexes. For females, most populations had a very high double infection incidence, with 67% being the lowest value (from Timor-Leste). For males, the incidence of double infections ranged from 100% (PNG) to 0% (Vanuatu). Only 6 females were infected solely by the w AlbA infection, while rare uninfected mosquitoes were found in both sexes. The w AlbA and w AlbB densities varied significantly among populations. For mosquitoes from Torres Strait and Vietnam, the w AlbB density was similar in single-infected and superinfected ( w AlbA and w AlbB) mosquitoes. There was a positive association between w AlbA and w AlbB infection densities in superinfected Ae. albopictus . Our findings provide no evidence of cryptic species of Ae. albopictus in the region and suggest site-specific factors influencing the incidence of Wolbachia infections and their densities. We also demonstrate the usefulness of SNPs as sex-specific mosquito markers. The results provide baseline data for the exploitation of Wolbachia -induced cytoplasmic incompatibility (CI) in dengue control.


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