Comparative evolution of pheromone communication in heliothine moths

2016 ◽  
Author(s):  
Kirk Hillier
Keyword(s):  
Pheromone Communication ◽  
Heliothine Moths ◽  
Comparative Evolution

Pheromone Communication in the Honeybee (Apis mellifera L.)

2005 ◽  
Vol 31 (11) ◽  
pp. 2731-2745 ◽  
Author(s):  
Keith N. Slessor ◽  
Mark L. Winston ◽  
Yves Le Conte
Keyword(s):  
Apis Mellifera ◽  
Pheromone Communication

scholarly journals The production of excretory-secretory molecules from Heligmosomoides polygyrus bakeri fourth stage larvae varies between mixed and single sex cultures

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Marta Maruszewska-Cheruiyot ◽  
Ludmiła Szewczak ◽  
Katarzyna Krawczak-Wójcik ◽  
Magdalena Głaczyńska ◽  
Katarzyna Donskow-Łysoniewska
Keyword(s):  
Sex Pheromones ◽  
Pheromone Communication ◽  
Larval Culture ◽  
Heligmosomoides Polygyrus ◽  
Single Sex ◽  
Opposite Sex ◽  
Potential Vaccine ◽  
Immunomodulatory Properties ◽  
Therapeutic Compounds ◽  
Immunomodulatory Potential

Abstract Background Excretory-secretory (ES) products are crucial in maintaining helminths in the host. Consequently, the proteins of ES are potential vaccine molecules and potential therapeutic agents for autoimmune diseases. Heligmosomoides polygyrus bakeri, a gastrointestinal parasite of mice, is a model of hookworm infection in humans. ES produced by both sexes of H. polygyrus bakeri L4 stage cultured separately shows different immunomodulatory properties than ES obtained when both sexes are cultured together. Accordingly, the objective of this study was to identify and compare the excretory-secretory molecules from single-sex and mixed cultures. Methods The composition of ES of male and female L4 stage nematodes in the presence (cultured together) or absence (cultured alone) of the opposite sex was examined. Proteins were identified using mass spectrometry. The functions of identified proteins were explored with Blast2GO. Results A total of 258 proteins derived from mixed larval culture in the presence of sex pheromones were identified, 160 proteins from pure female cultures and 172 from pure male cultures. Exposure of nematodes to the sex pheromones results in abundant production of proteins with immunomodulatory properties such as Val proteins, acetylcholinesterases, TGF-β mimic 9 and HpARI. Proteins found only in ES from mixed larval cultures were TGF-β mimics 6 and 7 as well as galectin. Conclusions The presence of the opposite sex strongly influences the composition of ES products, probably by chemical (pheromone) communication between individuals. However, examination of the composition of ES from various conditions gives an opportunity for searching for new potentially therapeutic compounds and anthelminthics as well as components of vaccines. Manipulation of the nematode environment might be important for the studies on the immunomodulatory potential of nematodes.

scholarly journals Comparative Evolution of GII.3 and GII.4 Norovirus over a 31-Year Period

2011 ◽  
Vol 85 (17) ◽  
pp. 8656-8666 ◽  
Author(s):  
D. Boon ◽  
J. E. Mahar ◽  
E. J. Abente ◽  
C. D. Kirkwood ◽  
R. H. Purcell ◽  
...  
Keyword(s):  
Comparative Evolution

Disruption of Pheromone Communication in Tecia solanivora (Lepidoptera: Gelechiidae): Flight Tunnel and Field Studies

2006 ◽  
Vol 99 (4) ◽  
pp. 1245-1250 ◽  
Author(s):  
C. F. Bosa ◽  
A. M. Cotes ◽  
P. Osorio ◽  
T. Fukumoto ◽  
M. Bengtsson ◽  
...  
Keyword(s):  
Field Studies ◽  
Flight Tunnel ◽  
Pheromone Communication ◽  
Tecia Solanivora

Variability in Pheromone Communication Among Different Haplotype Populations of Busseola fusca

2009 ◽  
Vol 35 (5) ◽  
pp. 618-623 ◽  
Author(s):  
A.-E. Félix ◽  
G. Genestier ◽  
C. Malosse ◽  
P.-A. Calatayud ◽  
B. Le Rü ◽  
...  
Keyword(s):  
Busseola Fusca ◽  
Pheromone Communication

Comparative Evolution in Mimulus guttatus of the Bonneville Basin

Evolution ◽  
1967 ◽  
Vol 21 (3) ◽  
pp. 439 ◽  
Author(s):  
Delbert W. Lindsay ◽  
Robert K. Vickery
Keyword(s):  
Mimulus Guttatus ◽  
Bonneville Basin ◽  
Comparative Evolution

Italian Regional Evolutions

10.1068/a3489 ◽  
2002 ◽  
Vol 34 (4) ◽  
pp. 657-694 ◽  
Author(s):  
Michael Dunford
Keyword(s):  
Employment Growth ◽  
Regional Economies ◽  
Comparative Performance ◽  
The Third ◽  
Italian Regions ◽  
Convergence And Divergence ◽  
The 1960S ◽  
Contemporary Development ◽  
Demographic Growth ◽  
Comparative Evolution

The aim of this paper is to examine the evolution of Italy's territorial inequalities from 1952 to 1996 and to consider what the Italian record tells us about the utility of theories of convergence and divergence. After outlining the scale and nature of contemporary development gaps in Italy, the author explores the way these inequalities have changed, showing that convergence in the 1960s and early 1970s gave way to divergence, and identifying the respective roles of productivity, employment, and demographic growth in shaping the overall trend in inequality. To examine what underlay the aggregate trends attention is paid to the comparative evolution of twenty Italian regions, indicating clearly the changing relative fortunes of the metropolitan northwest, the Mezzogiorno, the Third Italy, and the Adriatic coastal regions. In the final sections several decompositions are employed to identify the contribution of productivity and employment growth across a range of sectors to the comparative performance of Italy's regional economies.

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