Diversity, evolution, and function of myriapod hemocyanins.

ABSTRACT:

Background

Hemocyanin transports O₂ in the hemolymph of many arthropod species. Such respiratory proteins have long been considered unnecessary in Myriapoda. As a result, the presence of hemocyanin in Myriapoda has long been overlooked. We analyzed transcriptome and genome sequences from all major myriapod taxa - Chilopoda, Diplopoda, Symphyla, and Pauropoda - with the aim of identifying hemocyanin-like proteins.

Results

We investigated the genomes and transcriptomes of 56 myriapod species and identified 46 novel full-length hemocyanin subunit sequences in 20 species of Chilopoda, Diplopoda, and Symphyla, but not Pauropoda. We found in Cleidogona sp. (Diplopoda, Chordeumatida) a hemocyanin-like sequence with mutated copper-binding centers, which cannot bind O

SUBMITTER: Scherbaum S 

PROVIDER: S-EPMC6034248 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature