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Ultrastructural and molecular identification of a Wolbachia endosymbiont in a spider, Nephila clavata
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Abstract
Wolbachia
‐like bacteria were observed in the egg cells of golden orb‐weaving spider,
Nephila clavata
, by means of transmission electron microscopy. The bacteria exhibited the typical morphology of
Wolbachia
, including three enveloping membranes. Based on the amplification and sequencing of partial 16S rDNA and
fts
Z gene, the bacteria were identified as
Wolbachia
, intracellular, transovarially inherited α‐proteobacteria in invertebrates. Phylogenetic analysis based on 16S rDNA and
fts
Z gene sequences invariably indicated that the intracellular bacteria from
N. clavata
belonged to group A
Wolbachia
, which were found only from insects. Clustering of
Wolbachia
from
N. clavata
with group A
Wolbachia
indicates that the bacteria were probably transferred horizontally between insects and the spider.
Title: Ultrastructural and molecular identification of a
Wolbachia
endosymbiont in a spider,
Nephila clavata
Description:
Abstract
Wolbachia
‐like bacteria were observed in the egg cells of golden orb‐weaving spider,
Nephila clavata
, by means of transmission electron microscopy.
The bacteria exhibited the typical morphology of
Wolbachia
, including three enveloping membranes.
Based on the amplification and sequencing of partial 16S rDNA and
fts
Z gene, the bacteria were identified as
Wolbachia
, intracellular, transovarially inherited α‐proteobacteria in invertebrates.
Phylogenetic analysis based on 16S rDNA and
fts
Z gene sequences invariably indicated that the intracellular bacteria from
N.
clavata
belonged to group A
Wolbachia
, which were found only from insects.
Clustering of
Wolbachia
from
N.
clavata
with group A
Wolbachia
indicates that the bacteria were probably transferred horizontally between insects and the spider.
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