Comparative mitochondrial genomic analysis of Macrophthalmus pacificus and insights into the phylogeny of the Ocypodoidea & Grapsoidea

The mitochondrial genome of Grapsus albolineatus (Decapoda: Brachyura: Grapsidae) and phylogenetic associations in Brachyura

“…However, recent molecular studies, including our dataset, have not reached an agreement about closest relatives in Grapsidae. Our phylogenetic tree showed that Grapsidae and Dotillidae form a sister clade, which was in concordance with Wang et al 10 . While Wang et al and Ng, N. K. et al found that Grapsidae do not have any close relatives 9 , 35 , Li et al 36 found that Grapsidae and Ocypodidae form a sister clade.…”

“…Among the 21 families included in our phylogenetic tree, except Menippidae, each family in the tree forms a monophyletic clade with high nodal support values. At a higher level of classification, most Brachyura superfamilies were found to be monophyletic, except Ocypodoidea, Grapsoidea and Eriphioidea, which is in line with previous studies 9 , 10 , 37 . It showed that Grapsidea was divided into three clades (((Seasamidae + Gecarcinidae + Xengrapsidae) + Grapsidae) + Varunidae), Ocypodoidea was divided in three clades ((Ocypodidae + Dotillidae) + Macrophthalmidae + Mictyrisae) and Eriphioidea was divided into two clades (Oziidae + Menippidae).…”

The First Complete Mitochondrial Genome of Eucrate crenata (Decapoda: Brachyura: Goneplacidae) and Phylogenetic Relationships within Infraorder Brachyura

“…According to selective-assembly analysis, 167,844 reads were assembled into a 15,597 bp circular molecule (ON150678), which represented the complete mitogenome of E. crenata ( Figure 1 and Table 2 ). This length is shorter than that of the complete mitogenome of most Brachyura crabs, including Pseudohelice subquadrata , Macrophthalmus pacificus , Hemigrapsus penicillatus , and Grapsus tenuicrustatus [ 29 , 30 , 31 , 32 ]. The genome encodes 37 genes, including 13 PCGs, two rRNA genes, and 22 tRNA genes (duplication of trnL and trnS ).…”

Gene Arrangement and Adaptive Evolution in the Mitochondrial Genomes of Terrestrial Sesarmid Crabs Geosesarma faustum and Geosesarma penangensis

“…Typically, trnH located between nad4 and nad5 in the pancrustacean ground pattern had been shifted into the trnE and trnF junction in the Geosesarma mitogenomes. This translocation is a relatively common event in the brachyuran mitogenomes (Chen et al, 2019;Wang Q. et al, 2020). In the most common brachyuran gene order, the tRNA gene arrangement between the control region and nad2 is trnI-trnQ-trnM.…”