Population Genetic Structure of Codling Moth (Lepidoptera: Tortricidae) from Apple Orchards in Central Chile

2008 ◽  
Vol 101 (1) ◽  
pp. 190-198 ◽  
Author(s):  
Eduardo Fuentes-Contreras ◽  
Juan L. Espinoza ◽  
Blas Lavandero ◽  
Claudio C. Ramírez
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Codling Moth ◽  
Apple Orchards ◽  
Central Chile

Contrasting population genetic structure of two widespread aquatic insects in the Chilean high-slope rivers

2011 ◽  
Vol 62 (1) ◽  
pp. 1 ◽  
Author(s):  
M. C. Sabando ◽  
I. Vila ◽  
R. Peñaloza ◽  
D. Véliz
Keyword(s):  
Population Structure ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Aquatic Insects ◽  
Population Genetic ◽  
Nuclear Markers ◽  
Widespread Species ◽  
Central Chile ◽  
Physical Barriers ◽  
Three Rivers

Dispersal and many other factors affect population genetic structure. In central Chile, rivers are characterised by strong currents and transverse mountain chains, which impose physical barriers to the populations that inhabit them. The objective of the present study was to study the population genetic structure of two widespread species of aquatic insects, the caddisfly Smicridea annulicornis and the mayfly Andesiops torrens, in three isolated rivers, Choapa, Maipo and Maule. The analysis of population structure, using both mtDNA (cytochrome C oxidase subunit 1, COI) and nuclear markers (amplified fragment length polymorphism, AFLP), considered samples from within and among rivers. In S. annulicornis, we found differentiation within and among rivers, indicating a low dispersal among the study area. Populations of A. torrens shared haplotypes in all three rivers and no differences were found among rivers, indicating that this species probably has more dispersal potential than does S. annulicornis; however, significant differences were observed within rivers. Our results indicate that the transverse mountain chains are not a barrier for A. torrens, which can disperse among rivers. Within rivers, the population structure suggests that these species are probably adapted to avoid drift because of the torrential character of these Chilean rivers.

Population genetic structure of economically important Tortricidae (Lepidoptera) in South Africa: a comparative analysis

2009 ◽  
Vol 100 (4) ◽  
pp. 421-431 ◽  
Author(s):  
A.E. Timm ◽  
H. Geertsema ◽  
L. Warnich
Keyword(s):  
South Africa ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Codling Moth ◽  
Population History ◽  
Oriental Fruit Moth ◽  
Dispersal Ability ◽  
Aflp Analysis ◽  
Genetic Structures

AbstractComparative studies of the population genetic structures of agricultural pests can elucidate the factors by which their population levels are affected, which is useful for designing pest management programs. This approach was used to provide insight into the six Tortricidae of major economic importance in South Africa. The population genetic structure of the carnation wormE. acerbellaand the false codling mothT. leucotreta, analyzed using amplified fragment length polymorphism (AFLP) analysis, is presented here for the first time. These results were compared with those obtained previously for the codling mothCydia pomonella, the oriental fruit mothGrapholita molesta, the litchi mothCryptophlebia peltasticaand the macadamia nut borerT. batrachopa. Locally adapted populations were detected over local geographic areas for all species. No significant differences were found among population genetic structures as result of population history (whether native or introduced) although host range (whether oligophagous or polyphagous) had a small but significant effect. It is concluded that factors such as dispersal ability and agricultural practices have the most important effects on genetically structuring populations of the economically important Tortricidae in South Africa.

scholarly journals Weak Spatial and Temporal Population Genetic Structure in the Rosy Apple Aphid, Dysaphis plantaginea, in French Apple Orchards

PLoS ONE ◽  
2011 ◽  
Vol 6 (6) ◽  
pp. e21263 ◽  
Author(s):  
Thomas Guillemaud ◽  
Aurélie Blin ◽  
Sylvaine Simon ◽  
Karine Morel ◽  
Pierre Franck
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Apple Orchards ◽  
Dysaphis Plantaginea

Molecular Population Genetic Structure in the Piping Plover

2009 ◽  
Author(s):  
Mark P. Miller ◽  
Susan M. Haig ◽  
Cheri L. Gratto-Trevor ◽  
Thomas D. Mullins
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Piping Plover
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