scholarly journals Miniature masterminds : neurobiology of brain scaling in the parasitic wasp Nasonia vitripennis

2018 ◽  
Author(s):  
Jitte Groothuis
Keyword(s):  
Parasitic Wasp ◽  
Nasonia Vitripennis

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.

scholarly journals The comparative biology of second sex ratio evolution within a natural population of a parasitic wasp, Nasonia vitripennis.

Genetics ◽  
1990 ◽  
Vol 124 (2) ◽  
pp. 385-396 ◽  
Author(s):  
S H Orzack
Keyword(s):  
Sex Ratio ◽  
Parasitic Wasp ◽  
Comparative Biology ◽  
Significant Heterogeneity ◽  
Regression Analyses ◽  
Nasonia Vitripennis ◽  
Second Sex ◽  
Sex Ratio Adjustment ◽  
Optimality Models ◽  
Isofemale Strains

Abstract Correlation and regression analyses indicate that isofemale strains extracted from a population of the parasitic wasp, Nasonia vitripennis, differ in the fit of their second sex ratios (those produced in previously parasitized hosts) to the predictions of the theory of optimal facultative sex ratio adjustment. Under the theory's simple assumptions about population structure, there is significant heterogeneity of fitnesses among the isofemale strains. The reasons underlying these types of heterogeneity must be understood before we can make statements about the nature of sex ratio evolution in this species. These results suggest that comparative analyses are essential for testing the qualitative predictions of optimality models.

Intraspecific variability in associative learning in the parasitic wasp Nasonia vitripennis

2014 ◽  
Vol 18 (3) ◽  
pp. 593-604 ◽  
Author(s):  
Mareike Koppik ◽  
Thomas S. Hoffmeister ◽  
Sven Brunkhorst ◽  
Melanie Kieß ◽  
Andra Thiel
Keyword(s):  
Associative Learning ◽  
Parasitic Wasp ◽  
Intraspecific Variability ◽  
Nasonia Vitripennis

scholarly journals Physiological and biochemical responses to thermal stress vary among genotypes in the parasitic wasp Nasonia vitripennis

2019 ◽  
Vol 117 ◽  
pp. 103909 ◽  
Author(s):  
Kevin Hidalgo ◽  
Erika Beaugeard ◽  
David Renault ◽  
Franck Dedeine ◽  
Charlotte Lécureuil
Keyword(s):  
Thermal Stress ◽  
Parasitic Wasp ◽  
Nasonia Vitripennis ◽  
Biochemical Responses ◽  
Physiological And Biochemical

scholarly journals NOTES: Arsenophonus nasoniae gen. nov., sp. nov., the Causative Agent of the Son-Killer Trait in the Parasitic Wasp Nasonia vitripennis

1991 ◽  
Vol 41 (4) ◽  
pp. 563-565 ◽  
Author(s):  
R. L. Gherna ◽  
J. H. Werren ◽  
W. Weisburg ◽  
R. Cote ◽  
C. R. Woese ◽  
...  
Keyword(s):  
Causative Agent ◽  
Parasitic Wasp ◽  
Nasonia Vitripennis

scholarly journals The comparative biology of genetic variation for conditional sex ratio behavior in a parasitic wasp, Nasonia vitripennis.

Genetics ◽  
1991 ◽  
Vol 127 (3) ◽  
pp. 583-599 ◽  
Author(s):  
S H Orzack ◽  
E D Parker ◽  
J Gladstone
Keyword(s):  
Sex Ratio ◽  
Group Size ◽  
Evolutionarily Stable Strategy ◽  
Sex Ratios ◽  
Parasitic Wasp ◽  
Nasonia Vitripennis ◽  
Reasonable Evidence ◽  
Ess Model ◽  
Isofemale Strains ◽  
Evolutionarily Stable

Abstract Using genetic markers, we tracked the sex ratio behavior of individual females of the parasitic wasp, Nasonia vitripennis, in foundress groups of size 1, 2, 4, 8 and 16. Comparison of 12 isofemale strains extracted from a natural population reveals significant between-strain heterogeneity of sex ratios produced in all sizes of foundress group. Under simple assumptions about population structure, this heterogeneity results in heterogeneity of fitnesses. The strains differ in their conditional sex ratio behavior (the sex ratio response of a female to foundress groups of different sizes). Females of some strains produce more males as foundress group size increases (up to size eight). Females of another strain produce more males when not alone but do not respond differentially to group size otherwise. Females of two other strains show no conditional sex ratio behavior. Females of only two strains behave differently in foundress groups of size 8 and 16. Correlation and regression analyses indicate that the strains differ significantly in their fit to the predictions of an evolutionarily stable strategy (ESS) model of conditional sex ratio behavior. Such heterogeneity contradicts the notion that females of this species possess conditonal sex ratio behavior that is optimal in the ESS sense. The results imply that this ESS model is useful but not sufficient for understanding the causal basis of the evolution of this behavior in this species. This is the first report on the sex ratio behavior of individual females in multiple foundress groups in any species of parasitic wasp. Data of this type (and not foundress group or "patch" sex ratios) are essential for testing evolutionary models that predict the sex ratio behaviors of individuals. We suggest that a test for an ESS model include the answers to two important questions: 1) is the model quantitatively accurate? and 2) is there reasonable evidence to indicate that natural selection has caused individuals to manifest the ESS behavior?

scholarly journals The Hypercomplex Genome of an Insect Reproductive Parasite Highlights the Importance of Lateral Gene Transfer in Symbiont Biology

mBio ◽  
2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Crystal L. Frost ◽  
Stefanos Siozios ◽  
Pol Nadal-Jimenez ◽  
Michael A. Brockhurst ◽  
Kayla C. King ◽  
...  
Keyword(s):  
Parasitic Wasp ◽  
Genetic Material ◽  
Mobile Elements ◽  
Bacterial Genomes ◽  
Nasonia Vitripennis ◽  
Content Type ◽  
Microbial Function ◽  
Extrachromosomal Elements ◽  
Long Read ◽  
Genomic Regions

ABSTRACT Mobile elements—plasmids and phages—are important components of microbial function and evolution via traits that they encode and their capacity to shuttle genetic material between species. We here report the unusually rich array of mobile elements within the genome of Arsenophonus nasoniae, the son-killer symbiont of the parasitic wasp Nasonia vitripennis. This microbe’s genome has the highest prophage complement reported to date, with over 50 genomic regions that represent either intact or degraded phage material. Moreover, the genome is predicted to include 17 extrachromosomal genetic elements, which carry many genes predicted to be important at the microbe-host interface, derived from a diverse assemblage of insect-associated gammaproteobacteria. In our system, this diversity was previously masked by repetitive mobile elements that broke the assembly derived from short reads. These findings suggest that other complex bacterial genomes will be revealed in the era of long-read sequencing. IMPORTANCE The biology of many bacteria is critically dependent on genes carried on plasmid and phage mobile elements. These elements shuttle between microbial species, thus providing an important source of biological innovation across taxa. It has recently been recognized that mobile elements are also important in symbiotic bacteria, which form long-lasting interactions with their host. In this study, we report a bacterial symbiont genome that carries a highly complex array of these elements. Arsenophonus nasoniae is the son-killer microbe of the parasitic wasp Nasonia vitripennis and exists with the wasp throughout its life cycle. We completed its genome with the aid of recently developed long-read technology. This assembly contained over 50 chromosomal regions of phage origin and 17 extrachromosomal elements within the genome, encoding many important traits at the host-microbe interface. Thus, the biology of this symbiont is enabled by a complex array of mobile elements.

PATTERNS OF SPERM COMPETITION IN NASONIA VITRIPENNIS

1974 ◽  
Vol 16 (4) ◽  
pp. 789-795 ◽  
Author(s):  
Helen B. Holmes
Keyword(s):  
Sperm Competition ◽  
Parasitic Wasp ◽  
Nasonia Vitripennis

Females of the parasitic wasp, Nasonia vitripennis Walker, were generally nonreceptive after the initial copulation. But if they were inseminated twice, once by each of two virgin males in quick succession, they seldom retained for utilization any sperm from the second mate. If both males, or first males only, were partially depleted of sperm by prior copulations, then sperm from both males were often retained and utilized daily throughout a two- to three-week laying period. Sperm mixing resulted in random usage or in initiai preferential usage from either the first or second male. Precedence in usage of sperm from one mutant (oy) is suggested. When groups of males competed for females, some of the females were not inseminated and some others were doubly inseminated.

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