关键词: 卤代烷烃脱卤酶基因, 拟南芥, 反式失活, 转录后沉默

Abstract: To study the community structure and diversity of acaroid mite in South Anhui Province, samples from four different habitats were collected, isolated and identified. A total of 3650 acaroid mites were detected, belonging to 7 families, 20 genera and 32 species. Diversity analysis showed that the species number S, species richness index R, and species diversity index H′ of acaroid mite in the habitats were in the order of warehouse＞external environment＞human habitat＞work environment. The species evenness index J′of acaroid mite community was the highest in external environment, while the highest value of species domination indexD was observed in work environment. The acaroid mite community in work environment was most different from that in external environment. The results suggested that habitat condition directly influenced the community structure and diversity of acaroid mite, and human disturbance was also an important affecting factor.

Key words: Haloalkane dehalogenase gene (dhlA), A rabidopsis thaliana, Trans-inactivation, Post-transcriptional silencing