Skin mucus C-type lectin genes from all 19 Anguilla species/subspecies

Abstract

comprehensively describe the immune-related genes in a complete fish genus.

Mucosal galectin genes in all freshwater eels of the genus Anguilla

“…One of the reasons might be the high sequence identities among homologues; almost all genomic sequences were more than 90% identical (Table ). In contrast, the skin mucus C‐type lectin genes identified in the 19 Anguilla species–subspecies in our previous study (Tsutsui et al , ) were clearly clustered in the phylogenetic analysis. Taken together, it is suggested that the rate of molecular evolution of the mucosal galectin is slower than that of the C‐type lectin in the Anguilla species.…”

“…The genomic DNA samples obtained from the 19 Anguilla species plus subspecies described by Tsutsui et al () were used in the present study. All specimens of foreign eels were collected or imported from their habitats in the 1990s.…”

“…Sixteen species of the genus Anguilla have been recognised so far (Castle & Williamson, ; Ege, 1939; Watanabe et al , ) and three of them are further divided into two subspecies each. Previously, we reported the genomic DNA nucleotide sequences and structures of the homologues of AJL‐2, which is another skin mucus lectin originally identified from A. japonica and is not a galectin, but a C‐type lectin, found in all 19 Anguilla species–subspecies (Tsutsui et al , ). In the present study, we determined the genomic sequences and structures of the homologues of congerin and AJL‐1 from all Anguilla species, resulting in the identification of a unique sequence in the Australian long‐finned eel Anguilla reinhardtii Steindachner 1867.…”