scholarly journals Microorgans in herbivorous two-spotted spider mites regulate ecological interactions with lima bean plant

2011 ◽  
Vol 6 (2-3) ◽  
pp. 161-161 ◽  
Author(s):  
Hirokazu Ueda ◽  
Rika Ozawa ◽  
Junji Takabayashi ◽  
Massimo Maffei ◽  
Kazuhiko Matsuda
2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Eric W. Riddick ◽  
Zhixin Wu

We investigated mother-offspring relations in a lady beetleStethorus punctillumWeise that utilizes spider mites as prey. Our objectives were to determine if (1) prey quality affects egg size, (2) maternal size correlates with egg size, and (3) egg size affects hatching success. We fed predators spider mitesTetranychus urticaeKoch from lima beanPhaseolus lunatusL. foliage in the laboratory. Mothers of unknown body size offered high rather than low quality spider mites since birth produced larger eggs. Mothers of known body size offered only high quality spider mites, produced eggs of variable size, but mean egg size correlated positively with hind femur length. Mothers laid their eggs singly, rather than in batches, and eggs were large relative to femur size. Egg size did not affect hatch success; mean hatch rate exceeded 95% regardless of egg size. In conclusion, the quality of prey consumed byS. punctillummothers while in the larval stage can affect their size as adults and, consequently, the size of their eggs. The behavior of laying eggs singly, the positive relationship between maternal size and mean egg size, and the high rate of egg hatch suggest thatS. punctillummothers invest heavily in offspring.


1991 ◽  
Vol 30 (5) ◽  
pp. 1459-1462 ◽  
Author(s):  
Junji Takabayashi ◽  
Marcel Dicke ◽  
Maarten A. Posthumus

2014 ◽  
Vol 40 (9) ◽  
pp. 977-985 ◽  
Author(s):  
Tila R. Menzel ◽  
Tze-Yi Huang ◽  
Berhane T. Weldegergis ◽  
Rieta Gols ◽  
Joop J. A. van Loon ◽  
...  

2011 ◽  
Vol 6 (2-3) ◽  
pp. 163-164 ◽  
Author(s):  
Koichi Sugimoto ◽  
Kenji Matsui ◽  
Rika Ozawa ◽  
Junji Takabayashi

2020 ◽  
Author(s):  
Diogo P. Godinho ◽  
Miguel A. Cruz ◽  
Maud Charlery de la Masselière ◽  
Jéssica Teodoro-Paulo ◽  
Cátia Eira ◽  
...  

AbstractLaboratory studies are often criticized for not being representative of processes occurring in natural populations. This can be partially mitigated by using lab populations that capture large amounts of variation. Additionally, many studies addressing adaptation of organisms to their environment are done with laboratory populations, using quantitative genetics or experimental evolution methodologies. Such studies rely on populations that are either highly outbred or inbred. However, the methodology underlying the generation of such biological resources are usually not explicitly documented.Given their small size, short generation time, amenability to laboratory experimentation and knowledge of their ecological interactions, haplodiploid spider mites are becoming a widely used model organism. Here, we describe the creation of outbred populations of two species of spider mites, Tetranychus urticae and T. evansi, obtained by performing controlled crosses between individuals from field-collected populations. Subsequently, from the outbred population of T. evansi, we derived inbred lines, by performing several generations of sib-mating. These can be used to measure broad-sense heritability as well as correlations among traits. Finally, we outline an experimental evolution protocol that can be widely used in other systems. Sharing these biological resources with other laboratories and combining them with the available powerful genetic tools for T. urticae (and other species) will allow consistent and comparable studies that greatly contribute to our understanding of ecological and evolutionary processes.


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