Complete mitochondrial genome of Corydoras sterbai

[bekateen]

Liu, Q., Liu, Y., Xu, B., & Xiao, T. (2019). Next-generation sequencing yields the complete mitochondrial genome of Corydoras sterbai (Teleostei, Siluriformes, Callichthyidae, Corydoradinae). Mitochondrial DNA Part B, 4(2): 2880-2881.

https://doi.org/10.1080/23802359.2019.1660255
https://www.tandfonline.com/doi/abs/10. ... 19.1660255

Abstract
In this work, we reported the complete mitochondrial genome yielded from next-generation sequencing of

Corydoras sterbai

. The total length of the mitochondrial genome is 16,636 bp, with the base composition of 32.70% A, 26.40% T, 26.00% C, and 14.90% G. It contains two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes, and a major non-coding control region (D-loop region). The arrangement of these genes is the same as that found in the Siluriformes. All the protein initiation codons are ATG, except for cox1 that begins with GTG. The Neighbour-Joining tree built using Geneious showed that C. sterbai was clustered with other species from the genus Corydoras. It means that its external morphological feature classification is consistent with the molecular classification results.

• Keywords: Corydoras sterbai, mitochondrail genome, next-generation sequencing, phylogenetic analysis

Considering this is the third article a cory mitochondrial genome, it seems that some lab got a new toy! (a next-gen sequencer)!

[racoll]

Considering this is the third article a cory mitochondrial genome, it seems that some lab got a new toy! (a next-gen sequencer)!

Why publish one paper when you can publish ten?! Just gaming the system, unfortunately, and not adding much value.

[dw1305]

Hi all,

Considering this is the third article a cory mitochondrial genome, it seems that some lab got a new toy! (a next-gen sequencer)!

Why publish one paper when you can publish ten?! Just gaming the system, unfortunately, and not adding much value.

I was wondering about these the other day.

Four

Corydoradinae

papers so far, on

Corydoras(ln9) duplicareus

,

Corydoras(ln8sc4) arcuatus

,

Corydoras(ln9) panda

&

Corydoras(ln9) sterbai

.

Also they aren't really telling us anything that we didn't already know, in the latter three papers the out-groups are fish from Loricariidae etc, but in the first, C. duplicareus paper, they report sequences from more closely related fish.

Why didn't they use those for the other papers? From the C. duplicareus paper

.....The phylogenetic tree was reconstructed with MEGA6. 16 sequence from 3 genera (Aspidoras, Corydoras and Scleromystax) belong to Callichthyidae, and 12 sequence from 5 genera (Hypophthalmichthys, Mylopharyngodon, Ctenopharyngodon, Carassius and Cyprinus) belong to Cyprinidae.

You can't help but think that they are going to a local fish market, picking an obvious Corydoras, finding a name for it (are the names correct?) sequencing the mitochondrial genome and then publishing a pretty much identical paper with the new name inserted.

The living body of C. arcuatus (& C. sterbai & C. panda) were collected from the Red Star Ornamental Fish Market in Changsha, Hunan Province, China..... The (C. duplicareus) samples..... were collected from Yangfan ornamental fish market in changsha, Hunan province

cheers Darrel

[bekateen]

Why publish one paper when you can publish ten?! Just gaming the system, unfortunately, and not adding much value.

Exactly

[bekateen]

I was wondering about these the other day.

Four

Corydoradinae

papers so far, on

Corydoras(ln9) duplicareus

,

Corydoras(ln8sc4) arcuatus

,

Corydoras(ln9) panda

&

Corydoras(ln9) sterbai

.

Also they aren't really telling us anything that we didn't already know, in the latter three papers the out-groups are fish from Loricariidae etc, but in the first, C. duplicareus paper, they report sequences from more closely related fish.

Why didn't they use those for the other papers? From the C. duplicareus paper

.....The phylogenetic tree was reconstructed with MEGA6. 16 sequence from 3 genera (Aspidoras, Corydoras and Scleromystax) belong to Callichthyidae, and 12 sequence from 5 genera (Hypophthalmichthys, Mylopharyngodon, Ctenopharyngodon, Carassius and Cyprinus) belong to Cyprinidae.

You can't help but think that they are going to a local fish market, picking an obvious Corydoras, finding a name for it (are the names correct?) sequencing the mitochondrial genome and then publishing a pretty much identical paper with the new name inserted.

The living body of C. arcuatus (& C. sterbai & C. panda) were collected from the Red Star Ornamental Fish Market in Changsha, Hunan Province, China..... The (C. duplicareus) samples..... were collected from Yangfan ornamental fish market in changsha, Hunan province

cheers Darrel

True