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Attraction of bruchid beetles callosobruchus chinensis (L.) (Coleoptera: Bruchidae) to host plant volatiles

Journal of Integrative Agriculture 2020年第12期19卷 3035-3044页

作者： WANG Hong-min BAI Peng-hua ZHANG Jing ZHANG Xue-min HUI Qin ZHENG Hai-xia ZHANG Xian-hong College of Agricultural Economics and Management Shanxi Agricultural UniversityTaigu 030801P.R.China College of Plant Protection Shanxi Agricultural UniversityTaigu 030801P.R.China Institute of Plant Protection Tianjin Academy of Agricultural SciencesTianjin 300384P.R.China

Host-plant volatiles play an important role as cues for herbivores in search of resources, mates and oviposition sites in complex environments. Plant volatile-based attractants can be developed for pest monitoring and control. Previously, we indicated that mated female adults of callosobruchus chinensis showed choice preference behavior toward 2-hexenal and benzaldehyde. Our objective here was to investigate the synergistic effect of host-derived attractive volatiles in attracting C. chinensis under laboratory and field conditions in Shanxi Province, China. We hypothesized that the ratio and concentration of volatiles derived from Vigna radiata play critical roles for C. chinensis in locating this host. Therefore, we collected and identified the volatiles of mungbean by using headspace collection and GC-MS. The effectiveness of different ratios and concentrations of two compounds (2-hexenal and benzaldehyde) that elicit C. chinensis searching behavior were examined in Y-tube olfactometer assays. The combination of 300 μg μL^–1 2-hexenal and 180 μg μL^–1 benzaldehyde loadings exhibited a synergistic effect on attracting C. chinensis (82.35%). Compared to control traps, the adults were significantly attracted to traps baited with blends, and more attraction to females than males was found for blend traps in the field experiments. Our results suggest that blends of this specific concentration and ratio of benzaldehyde and 2-hexenal can be used in traps as attractants for C. chinensis monitoring and control in the field.

关键词： callosobruchus chinensis plant volatiles synergistic effect olfactometer attractant

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Construction of an integrated map and location of a bruchid resistance gene in mung bean

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The Crop Journal 2016年第5期4卷 360-366页

作者： Lixia Wang Chuanshu Wu Min Zhong Dan Zhao Li Mei Honglin Chen Suhua Wang Chunji Liu Xuzhen Cheng Institute of Crop Science Chinese Academy of Agricultural Sciences CSIRO Agriculture and Food

Bruchid beetle(callosobruchus chinensis) poses a serious threat to the production and storage of mung bean(Vigna radiata). Mapping bruchid resistance(Br) will provide an important basis for cloning the responsible gene(s) and elucidating its functional mechanism, and will also facilitate marker-assisted selection in mung bean breeding. Here, we report the construction of the genetic linkage groups of mung bean and mapping of the Br1 locus using an RIL population derived from a cross between Berken, a bruchid-susceptible line, and ACC41, a bruchid-resistant line. A total of 560 markers were mapped onto 11 linkage groups,with 38.0% of the markers showing distorted segregation. The lengths of the linkage groups ranged from 45.2 to 117.0 c M with a total coverage of 732.9 c M and an average interval of1.3 c M between loci. Br1 was located on LG9 between BM202(0.7 c M) and Vr2-627(1.7 c M).Based on 270 shared SSR markers, most of the linkage groups were assigned to specific chromosomes. These results should further accelerate the genetic study of this crop.

关键词： Vigna radiata callosobruchus chinensis Linkage map Resistance Gene mapping

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