Infestation by a Parasitic Wasp, Arachnophaga sp. (Insecta, Eupelmidae) on the Eggs of a Bolas Spider, Mastophora sp. (Aranae, Araneidae)

2012 ◽  
Vol 7 (2) ◽  
pp. 145-150
Author(s):  
Vladimir A. Basiuk
Keyword(s):  
Parasitic Wasp ◽  
Bolas Spider

scholarly journals Comparative Transcriptome Analysis Reveals Sex-Based Differences during the Development of the Adult Parasitic Wasp Cotesia vestalis (Hymenoptera: Braconidae)

Genes ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 896
Author(s):  
Yuenan Zhou ◽  
Pei Yang ◽  
Shuang Xie ◽  
Min Shi ◽  
Jianhua Huang ◽  
...  
Keyword(s):  
Alternative Splicing ◽  
Adult Development ◽  
Sexual Development ◽  
Molecular Mechanisms ◽  
Parasitic Wasp ◽  
Differentially Expressed Gene ◽  
Regulation Mechanism ◽  
Rna Seq ◽  
Male And Female ◽  
Cotesia Vestalis

The endoparasitic wasp Cotesia vestalis is an important biological agent for controlling the population of Plutella xylostella, a major pest of cruciferous crops worldwide. Though the genome of C. vestalis has recently been reported, molecular mechanisms associated with sexual development have not been comprehensively studied. Here, we combined PacBio Iso-Seq and Illumina RNA-Seq to perform genome-wide profiling of pharate adult and adult development of male and female C. vestalis. Taking advantage of Iso-Seq full-length reads, we identified 14,466 novel transcripts as well as 8770 lncRNAs, with many lncRNAs showing a sex- and stage-specific expression pattern. The differentially expressed gene (DEG) analyses showed 2125 stage-specific and 326 sex-specific expressed genes. We also found that 4819 genes showed 11,856 alternative splicing events through combining the Iso-Seq and RNA-Seq data. The results of comparative analyses showed that most genes were alternatively spliced across developmental stages, and alternative splicing (AS) events were more prevalent in females than in males. Furthermore, we identified six sex-determining genes in this parasitic wasp and verified their sex-specific alternative splicing profiles. Specifically, the characterization of feminizer and doublesex splicing between male and female implies a conserved regulation mechanism of sexual development in parasitic wasps.

scholarly journals Single and Double Infections with Wolbachia in the Parasitic Wasp Nasonia vitripennis Effects on Compatibility

Genetics ◽  
1996 ◽  
Vol 143 (2) ◽  
pp. 961-972 ◽  
Author(s):  
Marie-Jeanne Perrot-Minnot ◽  
Li Rong Guo ◽  
John H Werren
Keyword(s):  
Genomic Dna ◽  
Rapid Development ◽  
Parasitic Wasp ◽  
Pcr Amplification ◽  
Bacterial Strains ◽  
Nasonia Vitripennis ◽  
Larval Diapause ◽  
Wide Range ◽  
Reproductive Incompatibility ◽  
Infected Line

Abstract Wolbachia are cytoplasmically inherited bacteria responsible for reproductive incompatibility in a wide range of insects. There has been little exploration, however, of within species Wolbachia polymorphisms and their effects on compatibility. Here we show that some strains of the parasitic wasp Nasonia vitripennis are infected with two distinct bacterial strains (A and B) whereas others are singly infected (A or B). Double and single infections are confirmed by both PCR amplification and Southern analysis of genomic DNA. Furthermore, it is shown that prolonged larval diapause (the overwintering stage of the wasp) of a double-infected strain can lead to stochastic loss of one or both bacterial strains. After diapause of a double-infected line, sublines were produced with AB, A only, B only or no Wolbachia. A and B sublines are bidirectionally incompatible, whereas males from AB lines are unidirectionally incompatible with females of A and B sublines. Results therefore show rapid development of bidirectional incompatibility within a species due to segregation of associated symbiotic bacteria.

The effect of complete versus incomplete information on odour discrimination in a parasitic wasp

1998 ◽  
Vol 55 (5) ◽  
pp. 1271-1279 ◽  
Author(s):  
L.E.M. VET ◽  
A.G. DE JONG ◽  
E. FRANCHI ◽  
D.R. PAPAJ
Keyword(s):  
Incomplete Information ◽  
Parasitic Wasp ◽  
Odour Discrimination

The carbohydrate ligands on the host embryo mediate intercellular migration of the parasitic wasp embryo

FEBS Letters ◽  
2011 ◽  
Vol 585 (14) ◽  
pp. 2295-2299 ◽  
Author(s):  
Azusa Takahashi-Nakaguchi ◽  
Tsuyoshi Hiraoka ◽  
Kikuo Iwabuchi
Keyword(s):  
Parasitic Wasp ◽  
Carbohydrate Ligands ◽  
Host Embryo

scholarly journals Insect Wing Membrane Topography Is Determined by the Dorsal Wing Epithelium

2013 ◽  
Vol 3 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Andrea D Belalcazar ◽  
Kristy Doyle ◽  
Justin Hogan ◽  
David Neff ◽  
Simon Collier
Keyword(s):  
Planar Cell Polarity ◽  
Parasitic Wasp ◽  
Ventral Surface ◽  
Wing Membrane ◽  
Genetic Studies ◽  
Insect Wing ◽  
Membrane Topography ◽  
Wing Hair ◽  
Pcp Signaling ◽  
Multiple Cells

Abstract The Drosophila wing consists of a transparent wing membrane supported by a network of wing veins. Previously, we have shown that the wing membrane cuticle is not flat but is organized into ridges that are the equivalent of one wing epithelial cell in width and multiple cells in length. These cuticle ridges have an anteroposterior orientation in the anterior wing and a proximodistal orientation in the posterior wing. The precise topography of the wing membrane is remarkable because it is a fusion of two independent cuticle contributions from the dorsal and ventral wing epithelia. Here, through morphological and genetic studies, we show that it is the dorsal wing epithelium that determines wing membrane topography. Specifically, we find that wing hair location and membrane topography are coordinated on the dorsal, but not ventral, surface of the wing. In addition, we find that altering Frizzled Planar Cell Polarity (i.e., Fz PCP) signaling in the dorsal wing epithelium alone changes the membrane topography of both dorsal and ventral wing surfaces. We also examined the wing morphology of two model Hymenopterans, the honeybee Apis mellifera and the parasitic wasp Nasonia vitripennis. In both cases, wing hair location and wing membrane topography are coordinated on the dorsal, but not ventral, wing surface, suggesting that the dorsal wing epithelium also controls wing topography in these species. Because phylogenomic studies have identified the Hymenotera as basal within the Endopterygota family tree, these findings suggest that this is a primitive insect character.

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