Ma B et al. (2022), Analysis of Complete Mitochondrial Genome of Bo...

ECB-ART-50289

Animals (Basel) 2022 Jun 02;1211:. doi: 10.3390/ani12111437.

Show Gene links Show Anatomy links

Analysis of Complete Mitochondrial Genome of Bohadschia argus (Jaeger, 1833) (Aspidochirotida, Holothuriidae).

Ma B , Li Z , Lv Y , E Z , Fang J , Ren C , Luo P , Hu C .

???displayArticle.abstract???
Bohadschia argu is a kind of sea cucumber with high economic value; it is the only undisputed species in the genus Bohadschia. In this study, the complete mitochondrial genome (mitogenome) of B. argus was acquired through high-throughput sequencing. The mitochondrial genome of B. argus was 15,656 bp in total length and contained a putative control region (CR) and 37 typical genes of animal mitochondrial genomes, including 13 protein-coding genes (PCGs), 2 ribosomal RNA genes (rrnS and rrnL) and 22 transfer RNA genes (tRNA). The sizes of the PCGs ranged from 168 bp to 1833 bp, and all PCGs except nad6 were encoded on the heavy chain (H). Both rrnS and rrnL were also encoded on the H chain. Twenty-two tRNA genes had positive AT skew and GC skew. All tRNAs had a typical cloverleaf secondary structure except for trnI, in which an arm of dihydrouridine was missing. B. argus shared the same gene arrangement order (the echinoderm ground pattern) as other species in Aspidochirotida. Phylogenetic analysis clearly revealed that B. argus belongs as a member of the Holothuriidae, and it is closely related to members of Actinopyga and Holothuria.

???displayArticle.pubmedLink??? 35681901
???displayArticle.pmcLink??? PMC9179316
???displayArticle.link??? Animals (Basel)
???displayArticle.grants??? [+]

???attribute.lit??? ???displayArticles.show???

References [+] :

Arndt, Molecular phylogeny of eastern Pacific sea cucumbers (Echinodermata: Holothuroidea) based on mitochondrial DNA sequence. 1996, Pubmed, Echinobase

	Figure 1. Mitochondrial genome map of B. argus. Genes encoded in the forward direction are located on the outside of the ring, while those encoded in the reverse direction are located on the inside of the ring. The black peak represents the deviation of GC%; the deep purple and green peaks represent the deviation of GC skew.
	Figure 2. Relative synonymous codon usage (RSCU) in the mitogenome of B. argus. The horizontal coordinates represent the amino acids encoded by the codon, and the vertical coordinates represent RSCU values.
	Figure 3. Secondary structure of tRNAs in the mitochondrial genome of B. argus.
	Figure 4. Linearized representation of the conserved mitochondrial gene order in 20 holothuroid species. A red arrow represents a gene arrangement event of tandem-duplication-random-losses (TDRL).
	Figure 5. Phylogenetic tree derived from Bayesian inference (BI) of 13 mitochondrial PCGs in B. argus and other closely related species. Bayesian posterior probabilities are shown next to corresponding nodes.