Social Behavior and Its Effects on Colony- and Microgeographic Genetic Structure in Phytophagous Insect Populations

1998 ◽  
pp. 205-238 ◽  
Author(s):  
James T. Costa
Keyword(s):  
Social Behavior ◽  
Genetic Structure ◽  
Phytophagous Insect ◽  
Insect Populations

scholarly journals CHANGING POPULATION STRUCTURE THROUGH THE USE OF COMPOUND CHROMOSOMES

Genetics ◽  
1972 ◽  
Vol 72 (1) ◽  
pp. 183-186
Author(s):  
D Childress
Keyword(s):  
Population Structure ◽  
Genetic Structure ◽  
Theoretical Calculations ◽  
Population Cage ◽  
Insect Populations

ABSTRACT Theoretical calculations and population cage data are presented to illustrate the use of compound chromosomes to change the genetic structure of insect populations.

Genetic Structure of Reciprocal Social Behavior

2000 ◽  
Vol 157 (12) ◽  
pp. 2043-2045 ◽  
Author(s):  
John N. Constantino ◽  
Richard D. Todd
Keyword(s):  
Social Behavior ◽  
Genetic Structure

A Meta‐Analysis of Adaptive Deme Formation in Phytophagous Insect Populations

1998 ◽  
Vol 152 (4) ◽  
pp. 595-604 ◽  
Author(s):  
Peter A. Van Zandt ◽  
Susan Mopper
Keyword(s):  
Meta Analysis ◽  
Phytophagous Insect ◽  
Insect Populations

PREDATORS, PARASITOIDS, AND PATHOGENS AS MORTALITY AGENTS IN PHYTOPHAGOUS INSECT POPULATIONS

Ecology ◽  
1997 ◽  
Vol 78 (7) ◽  
pp. 2145-2152 ◽  
Author(s):  
Bradford A. Hawkins ◽  
Howard V. Cornell ◽  
Michael E. Hochberg
Keyword(s):  
Phytophagous Insect ◽  
Insect Populations

scholarly journals Genetic Divergence of Two Sitobion avenae Biotypes on Barley and Wheat in China

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Da Wang ◽  
Xiaoqin Shi ◽  
Deguang Liu ◽  
Yujing Yang ◽  
Zheming Shang
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Genetic Differentiation ◽  
Host Plant ◽  
Genetic Divergence ◽  
Isolation By Distance ◽  
Critical Role ◽  
Geographic Distance ◽  
Sitobion Avenae ◽  
Insect Populations

Host plant affinity and geographic distance can play critical roles in the genetic divergence of insect herbivores and evolution of insect biotypes, but their relative importance in the divergence of insect populations is still poorly understood. We used microsatellite markers to test the effects of host plant species and geographic distance on divergence of two biotypes of the English grain aphid, Sitobion avenae (Fabricius). We found that clones of S. avenae from western provinces (i.e., Xinjiang, Gansu, Qinghai and Shaanxi) had significantly higher genetic diversity than those from eastern provinces (i.e., Anhui, Henan, Hubei, Zhejiang and Jiangsu), suggesting their differentiation between both areas. Based on genetic diversity and distance estimates, biotype 1 clones of eastern provinces showed high genetic divergence from those of western provinces in many cases. Western clones of S. avenae also showed higher genetic divergence among themselves than eastern clones. The Mantel test identified a significant isolation-by-distance (IBD) effect among different geographic populations of S. avenae, providing additional evidence for a critical role of geography in the genetic structure of both S. avenae biotypes. Genetic differentiation (i.e., FST) between the two biotypes was low in all provinces except Shaanxi. Surprisingly, in our analyses of molecular variance, non-significant genetic differentiation between both biotypes or between barley and wheat clones of S. avenae was identified, showing little contribution of host-plant associated differentiation to the divergence of both biotypes in this aphid. Thus, it is highly likely that the divergence of the two S. avenae biotypes involved more geographic isolation and selection of some form than host plant affinity. Our study can provide insights into understanding of genetic structure of insect populations and the divergence of insect biotypes.

Seasonal shift from bottom-up to top-down impact in phytophagous insect populations

Oecologia ◽  
2003 ◽  
Vol 134 (4) ◽  
pp. 487-495 ◽  
Author(s):  
Claudio Gratton ◽  
Robert F. Denno
Keyword(s):  
Phytophagous Insect ◽  
Top Down ◽  
Bottom Up ◽  
Seasonal Shift ◽  
Insect Populations
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