Microbiome composition within a sympatric species complex of intertidal isopods (Jaera albifrons)

PloS One
Marius A WenzelStuart B Piertney

Abstract

The increasingly recognised effects of microbiomes on the eco-evolutionary dynamics of their hosts are promoting a view of the "hologenome" as an integral host-symbiont evolutionary entity. For example, sex-ratio distorting reproductive parasites such as Wolbachia are well-studied pivotal drivers of invertebrate reproductive processes, and more recent work is highlighting novel effects of microbiome assemblages on host mating behaviour and developmental incompatibilities that underpin or reinforce reproductive isolation processes. However, examining the hologenome and its eco-evolutionary effects in natural populations is challenging because microbiome composition is considerably influenced by environmental factors. Here we illustrate these challenges in a sympatric species complex of intertidal isopods (Jaera albifrons spp.) with pervasive sex-ratio distortion and ecological and behavioural reproductive isolation mechanisms. We deep-sequence the bacterial 16S rRNA gene among males and females collected in spring and summer from two coasts in north-east Scotland, and examine microbiome composition with a particular focus on reproductive parasites. Microbiomes of all species were diverse (overall 3,317 unique sequences among 3.8...Continue Reading

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Citations

Mar 20, 2020·Biotechnology for Biofuels·Marius BredonDidier Bouchon

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Methods Mentioned

BETA
PCR
amplicon sequencing
dissection

Software Mentioned

ggtree
ape
ncbi megablast
phyloseq
dada2
deseq2
PERMANOVA )
tax4fun
mafft
mass

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