[Pathogenicity and genetic divergence of two isolates of microsporidia Nosema bombycis].
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.
WANG
Min
M
Laboratory of Animal Biology, Chongqing Normal University, Chongqing 400047, China. wm923@163.com
XU
Jin-Shan
JS
WANG
Lin-Ling
LL
ZHANG
Xiao-Yan
XY
ZHOU
Ze-Yang
ZY
D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D004251:DNA Transposable Elements / Q000235:genetics; D004275:DNA, Ribosomal / Q000145:classification / Q000235:genetics; D016814:Microsporidia / Q000145:classification / Q000235:genetics* / Q000472:pathogenicity*; D008969:Molecular Sequence Data; D010802:Phylogeny; D018411:Spodoptera
D004251:DNA Transposable Elements; D004275:DNA, Ribosomal