RNA-seq of green hydra strains' ( Hydra viridissima) response to the removal or exchange of symbionts

The symbiotic hydra Hydra viridissima has a stable symbiotic relationship with the green alga Chlorella. This hydra appears to cospeciate with the symbiotic alga, and some strains are known to have strain-specific host/symbiont combinations. To investigate the mechanism of the specificity between host and symbiont, we explored the effect of the removal or exchange of symbionts in two distantly related H. viridissima strains (K10 and M9). In this study, we compared the gene expression of symbiont-removed, symbiont-exchanged hosts for each strain. The data include the raw read fastaq, assembled sequences, and read counts of RNA-seq.  We also attached the results of differential gene expression analyses for all combinations of the hosts.