The plastic bridge hypothesis: Does plant plasticity promote host shifts in phytophagous insects?

2016 ◽  
Author(s):  
Peri A. Mason
Keyword(s):  
Phytophagous Insects ◽  
Host Shifts ◽  
Plant Plasticity

scholarly journals Adaptation to different host plant ages facilitates insect divergence without a host shift

2015 ◽  
Vol 282 (1815) ◽  
pp. 20151649 ◽  
Author(s):  
Bin Zhang ◽  
Kari A. Segraves ◽  
Huai-Jun Xue ◽  
Rui-E Nie ◽  
Wen-Zhu Li ◽  
...  
Keyword(s):  
Host Plant ◽  
Oviposition Preference ◽  
Host Shift ◽  
Plant Age ◽  
Adaptive Divergence ◽  
Phytophagous Insects ◽  
Critical Element ◽  
Host Shifts ◽  
Surface Wax ◽  
Adult Trees

Host shifts and subsequent adaption to novel host plants are important drivers of speciation among phytophagous insects. However, there is considerably less evidence for host plant-mediated speciation in the absence of a host shift. Here, we investigated divergence of two sympatric sister elm leaf beetles, Pyrrhalta maculicollis and P. aenescens , which feed on different age classes of the elm Ulmus pumila L. (seedling versus adult trees) . Using a field survey coupled with preference and performance trials, we show that these beetle species are highly divergent in both feeding and oviposition preference and specialize on either seedling or adult stages of their host plant. An experiment using artificial leaf discs painted with leaf surface wax extracts showed that host plant chemistry is a critical element that shapes preference. Specialization appears to be driven by adaptive divergence as there was also evidence of divergent selection; beetles had significantly higher survival and fecundity when reared on their natal host plant age class. Together, the results identify the first probable example of divergence induced by host plant age, thus extending how phytophagous insects might diversify in the absence of host shifts.

Trypanosomatidae:PhytomonasDetection in Plants and Phytophagous Insects by PCR Amplification of a Genus-Specific Sequence of the Spliced Leader Gene

1999 ◽  
Vol 91 (3) ◽  
pp. 268-279 ◽  
Author(s):  
Myrna G. Serrano ◽  
Luiz R. Nunes ◽  
Marta Campaner ◽  
Gregory A. Buck ◽  
Erney P. Camargo ◽  
...  
Keyword(s):  
Pcr Amplification ◽  
Phytophagous Insects ◽  
Specific Sequence ◽  
Spliced Leader

scholarly journals Cophylogeny of the anther smut fungi and their caryophyllaceous hosts: Prevalence of host shifts and importance of delimiting parasite species for inferring cospeciation

2008 ◽  
Vol 8 (1) ◽  
pp. 100 ◽  
Author(s):  
Guislaine Refrégier ◽  
Mickaël Le Gac ◽  
Florian Jabbour ◽  
Alex Widmer ◽  
Jacqui A Shykoff ◽  
...  
Keyword(s):  
Parasite Species ◽  
Smut Fungi ◽  
Host Shifts ◽  
Anther Smut

scholarly journals Evolution of genomes, host shifts and the geographic spread of SARS-CoV and related coronaviruses

Cladistics ◽  
2008 ◽  
Vol 24 (2) ◽  
pp. 111-130 ◽  
Author(s):  
Daniel Janies ◽  
Farhat Habib ◽  
Boyan Alexandrov ◽  
Andrew Hill ◽  
Diego Pol
Keyword(s):  
Host Shifts ◽  
Geographic Spread ◽  
Evolution Of Genomes
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