Inactivated <i>mariner</i>‐like elements (MLE) in pink bollworm, <i>Pectinophora gossypiella</i>

Wang, J.; Staten, R. T.; Miller, Thomas A.; Park, Yoonseong

doi:10.1111/j.1365-2583.2005.00585.x

Cited by 17 publications

(24 citation statements)

References 19 publications

(19 reference statements)

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“…We conclude that the intact coding in the sequence encoding transposase has been selectively favoured in the evolution of HvPLE2 copies, though we were not able to identify the copy with the full‐length transposase similar to those of other PLEs. This is contrasted to the case of mariner ‐like element (MLE) evolution for which neutral evolution of the copies within a host species was suggested (Lampe et al ., 2003; Witherspoon & Robertson, 2003) and as it was also found in our previous study (Wang et al ., 2005).…”

Section: Discussionmentioning

confidence: 99%

piggyBac‐like elements in the tobacco budworm, Heliothis virescens (Fabricius)

Wang

Ren

Miller

et al. 2006

Insect Molecular Biology

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We identified two different groups of piggyBac-like elements (PLE) in the tobacco budworm, Heliothis virescens, and named them HvPLE1 and HvPLE2. An intact copy of HvPLE1 revealed the characteristics of PLE: inverted terminal repeats, inverted subterminal repeats, and an open reading frame encoding transposase, whereas other HvPLE1 copies and all the HvPLE2 copies carried disruptive mutations in the region encoding transposase. We also identified none to two bands per genome hybridized to a probe of Trichoplusia ni piggyBac in genomic Southern blotting, which are different from HvPLE1 or HvPLE2. Analysis of the sequences of multiple copies of HvPLE1 and HvPLE2 suggests that the PLEs are closely related to the T. ni piggyBac, of relatively young age, and independently entered the H. virescens genome.

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Section: Discussionmentioning

confidence: 99%

piggyBac‐like elements in the tobacco budworm, Heliothis virescens (Fabricius)

Wang

Ren

Miller

et al. 2006

Insect Molecular Biology

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“…To isolate TEs in H. armigera , we performed genome walking to obtain the 5′-flanking sequence of an insecticide resistance-associated cytochrome P450 gene, CYP6AE12 , in H. armigera 54. Genomic DNA was isolated from individual third instar larva, using the procedure described by Wang et al55. Gene-specific primers based on the known sequence of the cDNA (accession number: DQ256407) and four general primers provided by the Genome Walking Kit (TaKaRa, Dalian, China) were used for every genome walking.…”

Section: Methodsmentioning

confidence: 99%

Evidence of horizontal transfer of non-autonomous Lep1 Helitrons facilitated by host-parasite interactions

Guo

Gao

et al. 2014

Sci Rep

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Horizontal transfer (HT) of transposable elements has been recognized to be a major force driving genomic variation and biological innovation of eukaryotic organisms. However, the mechanisms of HT in eukaryotes remain poorly appreciated. The non-autonomous Helitron family, Lep1, has been found to be widespread in lepidopteran species, and showed little interspecific sequence similarity of acquired sequences at 3′ end, which makes Lep1 a good candidate for the study of HT. In this study, we describe the Lep1-like elements in multiple non-lepidopteran species, including two aphids, Acyrthosiphon pisum and Aphis gossypii, two parasitoid wasps, Cotesia vestalis, and Copidosoma floridanum, one beetle, Anoplophora glabripennis, as well as two bracoviruses in parasitoid wasps, and one intracellular microsporidia parasite, Nosema bombycis. The patchy distribution and high sequence similarity of Lep1-like elements among distantly related lineages as well as incongruence of Lep1-like elements and host phylogeny suggest the occurrence of HT. Remarkably, the acquired sequences of both NbLep1 from N. bombycis and CfLep1 from C. floridanum showed over 90% identity with their lepidopteran host Lep1. Thus, our study provides evidence of HT facilitated by host-parasite interactions. Furthermore, in the context of these data, we discuss the putative directions and vectors of HT of Lep1 Helitrons.

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“…To identity putative novel SINEs in H. armigera , we performed genome walking to obtain the 3′-flanking sequence of an insecticide resistance-associated cytochrome P450 gene, CYP6AE12 , in H. armigera [29]. Genomic DNA was isolated from individual third instar larva, using the procedure described by Wang et al [30]. Gene-specific primers (Table S1) based on the known sequence of the cDNA (accession number: DQ256407) and four general primers provided by the Genome Walking Kit (TaKaRa, Dalian, China) were used for every genome walking.…”

Section: Methodsmentioning

confidence: 99%

Characterization of Three Novel SINE Families with Unusual Features in Helicoverpa armigera

Wang

Han

et al. 2012

PLoS ONE

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Although more than 120 families of short interspersed nuclear elements (SINEs) have been isolated from the eukaryotic genomes, little is known about SINEs in insects. Here, we characterize three novel SINEs from the cotton bollworm, Helicoverpa armigera. Two of them, HaSE1 and HaSE2, share similar 5′ -structure including a tRNA-related region immediately followed by conserved central domain. The 3′ -tail of HaSE1 is significantly similar to that of one LINE retrotransposon element, HaRTE1.1, in H. armigera genome. The 3′ -region of HaSE2 showed high identity with one mariner-like element in H. armigera. The third family, termed HaSE3, is a 5S rRNA-derived SINE and shares both body part and 3′-tail with HaSE1, thus may represent the first example of a chimera generated by recombination between 5S rRNA and tRNA-derived SINE in insect species. Further database searches revealed the presence of these SINEs in several other related insect species, but not in the silkworm, Bombyx mori, indicating a relatively narrow distribution of these SINEs in Lepidopterans. Apart from above, we found a copy of HaSE2 in the GenBank EST entry for the cotton aphid, Aphis gossypii, suggesting the occurrence of horizontal transfer.

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Inactivated mariner‐like elements (MLE) in pink bollworm, Pectinophora gossypiella

Cited by 17 publications

References 19 publications

piggyBac‐like elements in the tobacco budworm, Heliothis virescens (Fabricius)

piggyBac‐like elements in the tobacco budworm, Heliothis virescens (Fabricius)

Evidence of horizontal transfer of non-autonomous Lep1 Helitrons facilitated by host-parasite interactions

Characterization of Three Novel SINE Families with Unusual Features in Helicoverpa armigera

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