1. [Pathogenicity and genetic divergence of two isolates of microsporidia Nosema bombycis].
- Author
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WANG M, XU JS, WANG LL, ZHANG XY, and ZHOU ZY
- Subjects
- Animals, Base Sequence, Cell Line, DNA Transposable Elements genetics, DNA, Ribosomal classification, DNA, Ribosomal genetics, Microsporidia classification, Molecular Sequence Data, Phylogeny, Spodoptera, Microsporidia genetics, Microsporidia pathogenicity
- Abstract
Microsporidia Nosema bombycis is a fungal pathogen that causes epidemic pebrine disease in Bombyx mori. Two N. bombycis isolates were obtained from two areas in China and showed different pathogenicity after Spodoptera frugiperda Sf9 cell cultivation. The regions of rDNAs from different isolates were analyzed, suggesting no relationship between the genetic divergence and their geographic distributions. Further analysis showed that several copies of SSU rDNA units in N. bombycis were interrupted by a MITE-like transposon, indicating the complexity of genomic structure in Nosema bombycis.
- Published
- 2009
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