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An Investigation On Diversity Of Insect Species And Baculoviruses In Huoditang Forest

Posted on:2016-03-14Degree:MasterType:Thesis
Country:ChinaCandidate:M YiFull Text:PDF
GTID:2180330461466984Subject:Plant protection
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In this paper, we researched insect species and soil baculovirus diversity analysis at different altitudes of Huoditang.We extracted DNA from soil by SDS and phenol-chlorofoem. The study first used PCR-DGGE to analyze the community diversity of soil baculovirus of different altitudes. We also analyzed the similarities and differences of its community among those samples; then we analyzed species correlation between insect and baculovirus, following were the major conclusions:1. Investigations of insect species of different elevations in Huoditang forest, middle altitude(37.6)>high altitude(36.2)>low altitude(28.7).2. In the high altitude, the baculovirus species in the soil samples detected was 23 with an average of 17.5. The average of Shannon- Wiener index was 2.4444. Evenness was 0.8586. By comparing the similarity of community, the highest similarity between QH5 and QH7 was 93.6%. The lowest between QH2 and QH6 was 27.9%. The similarity of two samples’ comparison results was more than 60%, which was 41.8% of the total.3. In the middle altitude, the baculovirus species in the soil samples detected was 30 with an average of 19.889. The average of Shannon- Wiener index was 2.376. Evenness was 0.797. When comparing the community similarity, the highest one- QM3 and QM4 was 82%. The lowest one- QM7 and QM9 was 49.8%. The similarity of two samples’ comparison results was more than 60%, which was 95.6% of the total. The similarity was very high.4. In the low altitude, the baculovirus species in the soil samples detected was 29 with an average of 20.8. The average of Shannon- Wiener index was 2.6329.The average of evenness was 0.8704.By comparing the similarity of community, the similarity of two samples’ comparison results was more than 60%, which was 80% of the total. The similarity was high except QL2.
Keywords/Search Tags:Insect species, PCR-DGGE, Soil baculovirus diversity
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