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New Corydoradinae paper
Posted: 12 Jun 2024, 05:00
by Coryman
The long awaited phylogeny paper resurrecting genera previously in synonymy with
has been published.
https://academic.oup.com/zoolinnean/adv ... m=fulltext
Re: New Corydoradinae paper
Posted: 12 Jun 2024, 05:11
by bekateen
Great news! Thanks Ian!
Cheers, Eric
Angelica C Dias, Luiz F C Tencatt, Fabio F Roxo, Gabriel de Souza da Costa Silva, Sérgio A Santos, Marcelo R Britto, Martin I Taylor, Claudio Oliveira. (2024). Phylogenomic analyses in the complex Neotropical subfamily Corydoradinae (Siluriformes: Callichthyidae) with a new classification based on morphological and molecular data, Zoological Journal of the Linnean Society, zlae053.
https://doi.org/10.1093/zoolinnean/zlae053
Abstract
The family Callichthyidae, which comprises the subfamilies Corydoradinae and Callichthyinae, represents one of the largest families within the Siluriformes. Corydoradinae, the largest subfamily of Callichthyidae, alone accounts for >200 valid species, with new species being described frequently. This subfamily holds significant popularity among catfish enthusiasts worldwide, mainly because
Corydoras are small, peaceful, and colourful fishes. Recognizing the existence of polyphyletic groups within Corydoradinae, the aim of this study was to construct a new phylogenetic hypothesis using genomic data (ultraconserved elements) and to re-evaluate the synonymized genera using the most recent morphological data. Our results supported the monophyly of Corydoradinae and identified seven distinct groups of species, each one with an associated pre-available generic name. These genera, namely
,
,
,
(resurrected),
(resurrected),
(resurrected), and
(resurrected), were all validated based on evidence derived from molecular and morphological analyses. A taxonomic key for the Corydoradinae genera is provided.
Keywords: biodiversity, catfish,
Corydoras, taxonomy, ultraconserved element, phylogenomics, phylogeny, systematics
- The long snouted corys (lineage 1) are the only corys to retain the generic name .
- The genera (lineage 2) and (lineage 3) remain unchanged.
- The dwarf corys like (lineage 4) are combined with the group (lineage 5) to form the genus .
- The group (lineage 7) is now .
- All corys in lineage 8 (including the and subgroups) are lumped for now with existing . Maybe this will be broken up later.
- The group (lineage 5) is combined with the short-snouted corys (lineage 9: , , etc.) to form the genus .
Re: New Corydoradinae paper
Posted: 12 Jun 2024, 19:34
by Jools
Thanks Ian and Eric for posting - especially Ian; it has been a while.
So, the million$ question for me is do I keep the lineages especially for Brochis' sub-clades.
Will consider for a day or two - not one to rush!
Cheers,
Jools
Re: New Corydoradinae paper
Posted: 12 Jun 2024, 20:08
by bekateen
Jools wrote: ↑12 Jun 2024, 19:34
Thanks Ian and Eric for posting - especially Ian; it has been a while.
So, the million$ question for me is do I keep the lineages especially for Brochis' sub-clades.
Will consider for a day or two - not one to rush!
Cheers,
Jools
Hi Jools,
I already moved the smaller groups (the aeneus group, the pygmy cory group and the Brochis subclade 1 group (Brochis
sensu stricto)). I also moved the Lineage 8 subclades 2 and 3 to Brochis, because they are small subgroups.
But I did not yet move the larger groups (Corydoras Lineage 8 subclade 4, the elegans group, the paleatus group and the julii group) because (A) those are large groups that will take a while to rename and (B) I wondered if you might want to code the lineage 8 subclades as Brochis subclades: e.g., as we did with lineage 1 corys, name subclade 1 of Brochis just "Brochis", then name the other three subclades of lineage 8 as Brochis(sc1), Brochis(sc2) and Brochis(sc3).
Your thoughts?
Cheers,
Eric
Re: New Corydoradinae paper
Posted: 12 Jun 2024, 21:07
by Jools
Hi Eric,
Yes, for sure. Brochis(sc2) etc is the way to go. Brochis(sc1) doesn't need to be, just Brochis is fine for this - good call. Give it 24 hours (so, daily/overnight backups run) and then cool to rename the big groups one per 24 hours? This has been a very long time in "gestation", fine to take a day or three to make it happen?
And, one Brochis, is obviously, Brochi.
Cheers,
Jools
Re: New Corydoradinae paper
Posted: 13 Jun 2024, 01:06
by bekateen
Jools wrote: ↑12 Jun 2024, 21:07Yes, for sure. Brochis(sc2) etc is the way to go. Brochis(sc1) doesn't need to be, just Brochis is fine for this - good call. Give it 24 hours (so, daily/overnight backups run) and then cool to rename the big groups one per 24 hours? This has been a very long time in "gestation", fine to take a day or three to make it happen?
Hi Jools,
All the lineage 8 subclades are moved to Brochis. I haven't moved the
elegans group with pygmies or the
paleatus group with lineage 9 fish. Should I create subclades there too? If so, the
paleatus group would be "
Hoplisoma(sc1)" and the pygmy corys would be "
Gastrodermus(sc1)" (since the type species for
is
C. elegans).
A lot of the lineage 9 fish, when moved to
, needed to have their gender changed (e.g.,
becomes
, etc). I've made all those epithet updates and reported the old names as synonyms.
Let me know if you want subclades on
Hoplisoma and
Gastrodermus.
Cheers, Eric
P.S. Also, the new genera will need to be assigned to the subfamily Corydoradinae. I can't make that update. Thanks.
Re: New Corydoradinae paper
Posted: 13 Jun 2024, 19:50
by Jools
I'm 50/50 on "Microcorydoras", but I think the stronger feeling is that getting rid of numbers in names is the right call (excepting, as you say, the Brochis sub-clades). Epic work on the name gender changes.
So, only Brochis remains split, everything else into their new (old) genera.
Sorry I am not helping much with this at the moment, will have much more time next week (but need to get a CSG journal out).
Cheers
Jools
Re: New Corydoradinae paper
Posted: 13 Jun 2024, 21:00
by bekateen
Okay. Will leave the other combined groups undivided as just Hoplisoma and Gastrodermus.
Cheers, Eric
