The complete mitochondrial genome of Poecilia formosa (Poecilia, Cyprinodontidae) and phylogenetic studies of cyprinodontiformes

AbstractThe complete mitochondrial genome (mitogenome) of animals can provide useful information for evolutionary and phylogenetic analyses. The mitogenome of the genus Exhippolysmata (i.e., Exhippolysmata ensirostris) was sequenced and annotated for the first time, its phylogenetic relationship with selected members from the infraorder Caridea was investigated. The 16,350 bp mitogenome contains the entire set of 37 common genes. The mitogenome composition was highly A + T biased at 64.43% with positive AT skew (0.009) and negative GC skew (− 0.199). All tRNA genes in the E. ensirostris mitogenome had a typical cloverleaf secondary structure, except for trnS1 (AGN), which appeared to lack the dihydrouridine arm. The gene order in the E. ensirostris mitogenome was rearranged compared with those of ancestral decapod taxa, the gene order of trnL2-cox2 changed to cox2-trnL2. The tandem duplication-random loss model is the most likely mechanism for the observed gene rearrangement of E. ensirostris. The ML and BI phylogenetic analyses place all Caridea species into one group with strong bootstrap support. The family Lysmatidae is most closely related to Alpheidae and Palaemonidae. These results will help to better understand the gene rearrangements and evolutionary position of E. ensirostris and lay a foundation for further phylogenetic studies of Caridea.

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The complete mitochondrial genome sequence of Yongeichthys criniger and phylogenetic studies of Gobiidae

Mitochondrial DNA Part A ◽

10.3109/19401736.2015.1118080 ◽

2015 ◽

Vol 28 (2) ◽

pp. 281-282 ◽

Cited By ~ 1

Author(s):

Yonglai Hu ◽

Baolong Bao ◽

Xiaoling Gong

Keyword(s):

Mitochondrial Genome ◽

Genome Sequence ◽

Complete Mitochondrial Genome ◽

Mitochondrial Genome Sequence ◽

Complete Mitochondrial Genome Sequence ◽

Phylogenetic Studies

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A new species of the genus Tuberfemurus (Orthoptera: Tetrigoidea: Cladonotinae) with comments on the characters of mitochondrial genome

Zootaxa ◽

10.11646/zootaxa.5071.3.9 ◽

2021 ◽

Vol 5071 (3) ◽

pp. 437-446

Author(s):

MENG-QI WANG ◽

YAO DENG ◽

DE-LONG GUAN ◽

BEN-YONG MAO ◽

MIAO LI

Keyword(s):

New Species ◽

Mitochondrial Genome ◽

Stop Codon ◽

Complete Mitochondrial Genome ◽

Hind Femur ◽

Start Codon ◽

Gene Arrangement ◽

Coding Region ◽

Phylogenetic Studies ◽

A New Species

A new species, Tuberfemurus viridulus sp. nov. is described and illustrated with photographs. The new species is similar to T. torulisinotus Deng, 2019, but differs from the latter by broader vertex, invisible frontal costa in profile, distinctly truncate apex of hind pronotal process, and two large triangular projections on lower outer carinae of hind femur. An updated key to species of Tuberfemurus is provided. Simultaneously, the complete mitochondrial genome of Tuberfemurus viridulus sp. nov. is sequenced and analyzed. The total length of the assembled mitogenome is 15,060 bp with 37 typical mitochondrial genes and a non-coding region (A + T-rich region). The order and orientation of the gene arrangement pattern are identical to that of most Tetrigoidea species. All PCGs initiate with the standard start codon of ATN, except ATP6 with GAC and ND1 with TTG; and terminate with the complete stop codon (TAA/TAG) or with an incomplete T- codon. This data could provide the genome information available for Tetrigoidea and facilitate phylogenetic studies of related insects.

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