Brief description of the molecular aspects of Paralithodes camtschaticus larval development
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The transcriptome of the red king crab Paralithodes camtschaticus was sequenced at four developmental stages—zoea I, zoea IV, glaucothoe, juvenile—on an Illumina sequencer. Based on our RNA-seq data and the paired-end reads from 112 libraries obtained by other researchers earlier, we have achieved the currently most complete transcriptome assembly for P. camtschaticus with the best basic statistical parameters. The analysis of enrichment processes at different stages showed, that in the early larvae adaptation to elevated temperature and hypoxia do not function. Thus, it is important to maintain optimal condition for the normal larval development and reducing mortality. As results of expression profiles clustering and transcription factor searching, we found that most of them are associated with the development of various organs, metamorphosis, and immune respone. The data obtained by us provide an additional basis for a deeper study of the mechanisms of the biphasic life cycle in decapods and can be used in commercial Kamchatka crab breeding programs.
