The chemical identification of the rice weevil and maize weevil aggregation pheromone

1984 ◽  
Vol 25 (15) ◽  
pp. 1533-1534 ◽  
Author(s):  
Norman R. Schmuff ◽  
Joel K. Phillips ◽  
Wendell E. Burkholder ◽  
Henry M. Fales ◽  
Chi-Wan Chen ◽  
...  
Keyword(s):  
Aggregation Pheromone ◽  
Rice Weevil ◽  
Chemical Identification ◽  
Maize Weevil

The chemical identification of the granary weevil aggregation pheromone

1987 ◽  
Vol 28 (49) ◽  
pp. 6145-6146 ◽  
Author(s):  
Joel K. Phillips ◽  
Stephen P.F. Miller ◽  
John F. Andersen ◽  
Henry M. Fales ◽  
Wendell E. Burkholder
Keyword(s):  
Aggregation Pheromone ◽  
Chemical Identification ◽  
Granary Weevil

scholarly journals Infochemical-mediated preference behavior of the maize weevil, Sitophilus zeamais Motschulsky, when searching for its hosts

2008 ◽  
Vol 19 (4) ◽  
Author(s):  
Qingfeng Tang ◽  
Yuejin Wu ◽  
Binmei Liu ◽  
Zengliang Yu
Keyword(s):  
Aggregation Pheromone ◽  
Brown Rice ◽  
Behavioral Responses ◽  
Grain Sorghum ◽  
Sitophilus Zeamais ◽  
Host Volatiles ◽  
Maize Weevil ◽  
Preference Behavior ◽  
Odour Source

Behavioral responses of S. zeamais to odours from pulverized wheat, brown rice, sorghum, buckwheat, peanut and cork were compared in a Y-tube-olfactometerbioassay. Results showed that both sexes responded to host volatiles and males were more sensitive than females. The strongest responses to grains of wheat and brown rice were found, and insects reared on these were dramatically heavier than on other tested materials (grain sorghum, buckwheat, peanut and cork). Multiple-choices tests, in which volatiles from males that were removed from the wheat within different minutes were simultaneously presented in the chamber, were used to study whether males can release aggregation pheromone if not on the grain. The pheromone was released by males within about 13 minutes after removal from the grains. Responses to pheromones produced by males were skewed toward females although both sexes were attracted. Both sexes responded most strongly to the odour source comprising pheromone with host volatiles.

Comparison of full mitochondrial genomes for the rice weevil, Sitophilus oryzae and the maize weevil, Sitophilus zeamais (Coleoptera: Curculionidae)

Agri Gene ◽  
2016 ◽  
Vol 2 ◽  
pp. 29-37 ◽  
Author(s):  
James Adebayo Ojo ◽  
M. Carmen Valero ◽  
Weilin Sun ◽  
Brad S. Coates ◽  
Adebayo Amos Omoloye ◽  
...  
Keyword(s):  
Sitophilus Oryzae ◽  
Sitophilus Zeamais ◽  
Rice Weevil ◽  
Mitochondrial Genomes ◽  
Maize Weevil

scholarly journals Ancient origin and recent range expansion of the maize weevil Sitophilus zeamais, and its genealogical relationship to the rice weevil S. oryzae

2016 ◽  
Vol 107 (1) ◽  
pp. 9-20 ◽  
Author(s):  
A.S. Corrêa ◽  
C.C. Vinson ◽  
L.S. Braga ◽  
R.N.C. Guedes ◽  
L.O. de Oliveira
Keyword(s):  
Cytochrome Oxidase ◽  
Spatial Genetic Structure ◽  
Sitophilus Oryzae ◽  
Sitophilus Zeamais ◽  
Rice Weevil ◽  
Cytochrome Oxidase Subunit ◽  
Maize Weevil ◽  
Oxidase Subunit ◽  
Genealogical Relationship ◽  
Highest Posterior Density

AbstractArcheological records attest the early association of Sitophilus with stored cereals from the beginning of agriculture on Asia. The maize weevil (Sitophilus zeamais) became particularly damaging to maize, a cereal crop domesticated on Mesoamerica. We investigated the late evolutionary history of the maize weevil to gain insights on its origin, timing of association with maize, and genealogical relationship to the almost morphologically indistinguishable rice weevil (Sitophilus oryzae). Two mitochondrial genes (cytochrome oxidase subunit I and cytochrome oxidase subunit II) and the nuclear ribosomal gene region were partially sequenced. Analyses showed that the maize weevil shared no haplotypes with the rice weevil; instead, each species exhibited distinct mitogroups and ribogroups. The two weevil species likely split about 8.7 million years ago (95% highest posterior density: 4.0–15.0). Microsatellite data analyses sorted the 309 specimens from 15 populations of the maize weevil into three genotypic groups, which displayed low genetic differentiation and widespread occurrence worldwide. The maize weevil and the rice weevil are each a distinct species; both of which emerged prior to the onset of agriculture. The maize–maize weevil association took place after maize became widespread as a global crop. The maize weevil populations lack spatial genetic structure at the regional, continental, and intercontinental scales.

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