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Abstract
Costaria costata, with great commercial and industrial value, typically grows in low intertidal and subtidal retgions in East Asia. The complete mitochondrial genome of C. costata is determined as circular-mapping and AT-rich (65%). The 37,461 bp mitochondrial genome consists of 25 tRNAs, 38 genes (including ORFs) and 3 ribosome genes. The gene arrangement and component are identical to those of Laminaria mitochondrial genomes, which show highly conservative evolution in mitochondrial genomes within the Laminariales. Moreover, the C. costata mitogenome makes full use of nucleotide and genetic information by large amounts of gene overlappings for better adapting the evolution of small genomes.
Declaration of interest
This work was supported by National Public Benefit Research Foundation of China (Grant No. 201203063), National High Technology Research and Development Program of China (Grant No. 2012AA10A406), Special Fund of Fundamental Scientific Research Business Expense for Higher School of Central Government (Grant No. 201262003), National Natural Science Foundation of China (NSFC No. 41206116 and No. 41376143).
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.