Deep phylogeographical structure and parallel host range evolution in the leaf beetleAgelasa nigriceps

2013 ◽  
Vol 23 (2) ◽  
pp. 421-434 ◽  
Author(s):  
Tetsuo I. Kohyama ◽  
Kazuma Matsumoto ◽  
Haruo Katakura
Keyword(s):  
Host Range ◽  
Host Range Evolution

scholarly journals Ant association facilitates the evolution of diet breadth in a lycaenid butterfly

2010 ◽  
Vol 278 (1711) ◽  
pp. 1539-1547 ◽  
Author(s):  
Matthew L. Forister ◽  
Zachariah Gompert ◽  
Chris C. Nice ◽  
Glen W. Forister ◽  
James A. Fordyce
Keyword(s):  
Host Range ◽  
Diet Breadth ◽  
Demographic Model ◽  
Adaptive Diversification ◽  
Host Range Evolution ◽  
Mutualistic Interactions ◽  
Novel Host ◽  
Lycaenid Butterfly ◽  
Ant Association

The role of mutualistic interactions in adaptive diversification has not been thoroughly examined. Lycaenid butterflies provide excellent systems for exploring mutualistic interactions, as more than half of this family is known to use ants as a resource in interactions that range from parasitism to mutualism. We investigate the hypothesis that protection from predators offered to caterpillars by ants might facilitate host-range evolution. Specifically, experiments with the butterfly Lycaeides melissa investigated the role of ant association in the use of a novel host, alfalfa, Medicago sativa , which is a sub-optimal host for larval development. Survival on alfalfa is increased by the presence of ants, thus supporting the hypothesis that interaction with ants might be important for host-range evolution. Using a demographic model to explore ecological conditions associated with host-range expansion in L. melissa , we conclude that the presence of ants might be an essential component for populations persisting on the novel, sub-optimal host.

scholarly journals Host Range Evolution of Potyviruses: A Global Phylogenetic Analysis

Viruses ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 111 ◽  
Author(s):  
Benoît Moury ◽  
Cécile Desbiez
Keyword(s):  
Phylogenetic Analysis ◽  
Host Range ◽  
Plant Species ◽  
Control Strategies ◽  
Ecological Factors ◽  
Plant Viruses ◽  
Range Data ◽  
Disease Emergence ◽  
Host Range Evolution ◽  
Ecological Mechanisms

Virus host range, i.e., the number and diversity of host species of viruses, is an important determinant of disease emergence and of the efficiency of disease control strategies. However, for plant viruses, little is known about the genetic or ecological factors involved in the evolution of host range. Using available genome sequences and host range data, we performed a phylogenetic analysis of host range evolution in the genus Potyvirus, a large group of plant RNA viruses that has undergone a radiative evolution circa 7000 years ago, contemporaneously with agriculture intensification in mid Holocene. Maximum likelihood inference based on a set of 59 potyviruses and 38 plant species showed frequent host range changes during potyvirus evolution, with 4.6 changes per plant species on average, including 3.1 host gains and 1.5 host loss. These changes were quite recent, 74% of them being inferred on the terminal branches of the potyvirus tree. The most striking result was the high frequency of correlated host gains occurring repeatedly in different branches of the potyvirus tree, which raises the question of the dependence of the molecular and/or ecological mechanisms involved in adaptation to different plant species.

scholarly journals Trade-offs in host range evolution of plant viruses

2013 ◽  
Vol 62 ◽  
pp. 2-9 ◽  
Author(s):  
F. García-Arenal ◽  
A. Fraile
Keyword(s):  
Host Range ◽  
Plant Viruses ◽  
Trade Offs ◽  
Host Range Evolution

scholarly journals PATTERNS OF HOST-PLANT CHOICE IN BEES OF THE GENUSCHELOSTOMA: THE CONSTRAINT HYPOTHESIS OF HOST-RANGE EVOLUTION IN BEES

Evolution ◽  
2008 ◽  
Vol 62 (10) ◽  
pp. 2487-2507 ◽  
Author(s):  
Claudio Sedivy ◽  
Christophe J. Praz ◽  
Andreas Müller ◽  
Alex Widmer ◽  
Silvia Dorn
Keyword(s):  
Host Range ◽  
Host Plant ◽  
Host Range Evolution ◽  
Plant Choice
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