Transcriptome analysis of sea cucumber,Apostichopus japonicus,at pigmentation stage
BIAN Linxin
SONG Mingshan
YANG Xiaolong
ZHANG Anguo
ZHAO Huan
Abstract：Apostichopus japonicus Selenka is a commercial species in China.During its larval develop-ment,it experiences body color change stage important for its development.Current studied centralized on the mechanism underlining white and purple body color of A.japonicus while that underlining the common green color was scarce.The transcriptomes at early(JW),mid-(JV),and late-(JB)pigmen-tation stages were sequenced and compared to find the differentially expressed genes(DEGs).A total of 252,397 genes were obtained by sequencing.The number of DEGs(JW vs.JV)was 10,266 while that of DEGs(JW vs.JB)was 12,811 and that of DEGs(JV vs.JW)was 9,657.GO and KEGG ana-lyses showed that the genes such as those encoding calmodulin,protein kinase C,putative tyrosine ki-nase receptor Cad96Ca,and putative tyrosine kinase differentially expressed during the change of body color of juvenile A.japonicus.It was speculated that Ras,Wnt,MAPK signaling pathways among others are involved in the melanin synthesis of juvenile A.japonicus.Our findings provided valuable information for in depth studies on the molecular mechanism of the pigmentation of A.japonicus with different body colors.
Keywords：Juvenile Apostichopus japonicuspigmentationtranscriptomedifferential expression gene
Publication Date：2025-06-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 65-72 )