The complete mitochondrial genome sequences of five Otophysi species (Vertebrata, Teleostei)

Abstract

Complete mitochondrial genomes of the characiform fishes Astyanax fasciatus, Astyanax altiparanae, Hoplias malabaricus (Karyomorph A) and the Gymnotiformes species Gymnotus sylvius and Gymnotus cuia were characterized in the present study. The whole mitogenomes varied from 16,400bp (A. fasciatus) to 17,730 bp (A. altiparanae) long and all of them consisted of 13 protein-coding genes, 22 tRNAs, 2 rRNAs genes, a control region, and origin of light-strand replication. The gene order was similar among all the analyzed species. The nucleotide content of all mitogenomes was also similar, with 29.58-30.95% for A, 27.02-28.65% for T, 26.29-29.99% for C, and 14.41-15.67% for G.

Ten Complete Mitochondrial Genomes of Gymnocharacini (Stethaprioninae, Characiformes). Insights Into Evolutionary Relationships and a Repetitive Element in the Control Region (D-loop)

“…The methodology used to reconstruct the mitochondrial genome proved to be satisfactory and enabled the assessment of the length of this type of genome, plus the composition and nature of the D-loop, solving possible gaps in previous methodologies (Silva et al, 2016;Barreto et al, 2017;Calegari et al, 2019). Besides, the study of the complete mitochondrial genome proves to be a tool with the potential to solve taxonomic problems and to help understand the evolutionary relationships in species complexes, such as A. bimaculatus, P. fasciatus, and P. scabripinnis.…”

“…Hundreds of studies describing mitogenomes have been published in the last few years. Despite being the most sequenced genome nowadays (Smith, 2015), to this date, just the mitogenomes of A. mexicanus (Nakatani et al, 2011), P. paranae (Silva et al, 2016), Deuterodon giton (Barreto et al, 2017), P. fasciatus, and A. altiparanae (Calegari et al, 2019) are published. In an attempt to fill this gap, we focused on the three species complex of the group (A. bimaculatus, P. scabripinnis and P. fasciatus) to present here the complete sequences of the mitochondrial genome of 10 species/cytotypes of Astyanax/Psalidodon.…”

Ten complete mitochondrial genomes of Gymnocharacini (Stethaprioninae, Characiformes): evolutionary relationships and a repetitive element in the Control Region (D-loop)

“…Besides the great genetic distance observed between P. paranae and P. rioparanaibano (2.3%, Table 4), it was possible to observe that both cytotypes of P. rivularis , inhabitants of the São Francisco River, are closer to P. Figure 2) when describing the mitogenome of the species, Barreto et al [32] preprint (which was not certified by peer review) is the author/funder. [33]. Besides, the study of the complete mitochondrial genome proves to be a tool with the potential to solve taxonomic problems and to help to understand the evolutionary relationships in species complexes, such as A.…”

“…Hundreds of papers describing mitogenomes have been published in the last few years, and despite being the most sequenced genome nowadays [29], to this date, just the mitogenomes of A. mexicanus [30] , P. paranae [31], and Deuterodon giton [32], P. fasciatus and A. altiparanae [33] are published. In an attempt to fill this gap, we present now the complete sequences of the mitochondrial genome of ten species/cytotypes of Astyanax/Psalidodon genus , discussing the evolutionary relationships among these species and the presence of a repeat in the control region.…”