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Maximum-likelihood tree based on the concatenated nucleotide sequence of 13 protein-coding genes of Linckia laevigata (LC505032) and 12 asteroid species. Nodal values are ML bootstrap support values (BS) and BA posterior probabilities (PP). An asterisk ( Ã ) indicates 100% BS and 1.0 PP. A hyphen (-) shows the branch not supported in the BA tree. The scale bar indicates branch length in substitutions per site.
Source publication
We determined the complete mitochondrial genome sequences of an asteroid Linckia laevigata belonging to the order Valvatida. The complete mitogenome of L. laevigata was 16,371 bp in length and consisted of 13 protein-coding genes (PCGs), two rRNA, and 22 tRNA. The orders of PCGs and rRNAs were identical to those of the recorded mitogenomes of aster...
Context in source publication
Context 1
... phylogenetic tree also with posterior probability from Bayesian analyses (BA) conducted using MrBayes 3.2.6 (Ronquist et al. 2012). Linckia laevigata make a sister clade with species belonging to order Paxillosida (Astropecten polyacanthus and Luidia quinaria) with low nodal support value (Figure 1). The family Ophidasterida, which including L. laevigata, was paraphyletic in the previous study. ...
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Citations
... Goniasterids are the most diverse family of asteroids, including some 256 living species within 65 genera (Mah and Blake 2012). The complete mitochondrial genome of the ophidiasterid, Linckia laevigata, a species also representing the large Valvatacea cluster has recently been reported by Hiruta et al. (2020). ...
... Linchangco et al. 2017). Linckia laevigata's position here differs from its position in the tree presented by Hiruta et al. (2020) which showed it as sister to two members of Paxillosida, Luidia and Astropecten. This is likely attributable to the different number of markers used in previous studies. ...
... Furthermore, at the timing of writing, neither our tree nor that of Hiruta et al. (2020) included any members of the Velatida, the third major clade within the Asteroidea (Linchangco et al. 2017). The lack of comprehensive taxon sampling in prior studies may have resulted in Long Branch Attraction artifacts which might have led to the erroneous grouping of some OTUs (Wiens et al. 2008). ...
The full mitogenome of an ethanol-preserved museum specimen of Ceramaster japonicus was determined using the NGS Illumina MiSeq platform. The specimen was collected from Tosa Bay, Japan, facing the Pacific Ocean (33.0781 N 134.0601 E), at 700 m depth in 2011. The mitogenome shows a typical metazoan genomic structure, with all of the 37 genes included in its 16,370 base-long mitogenome. We conducted phylogenetic analyses using a data set including 18 publicly available asteroids rooted against five ophiuroids as outgroups. The result confirms the position of C. japonicus in the order Valvatida. The complete mitogenome of C. japonicus reported here is the first reported for the family Goniasteridae Forbes, 1841.
