Taxacom: Satyrium curiosolus sp. nov by SNPs alone

[John Grehan]

Thanks for the feedback!

On Sat, Apr 26, 2025 at 4:56?PM David Campbell via Taxacom <
taxacom at lists.ku.edu> wrote:

> For any given taxon, it's important to test whether the characters used
> seem to actually delineate plausible groups or just vary within
> populations.  That is true of molecular and morphological characters.
> Whether these particular characters are good, I do not know, but I would
> want to see intermediate populations sampled to look for a break between
> them, rather than just "way over here had lots of differences from way over
> there".  As another example, I know of a genus name where the cited
> diagnostic character was the length of a variable region in the DNA.  Not a
> good choice - given that the region is quite variable in this particular
> family of snails, different taxa converge on the same length.  The actual
> sequences would have been a much better marker.
>
> On Sat, Apr 26, 2025 at 2:05?PM John Grehan via Taxacom <
> taxacom at lists.ku.edu> wrote:
>
> > New article presents a new species that is apparently unambiguously
> > recognizable by a set of SNPs
> >
> > Genomic and ecological divergence support recognition of a new species of
> > endangered Satyrium butterfly (Lepidoptera, Lycaenidae)
> > <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fzookeys.pensoft.net%2Farticle%2F143893%2F&data%7C02%7Ctaxacom%40lists.ku.edu%7Cf09d64ee623d49499f0e08dd85a13e49%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638813649774066763%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=HoOGwfe65q0XDB4oL6Sbh0Bcx9qDQuNlNA2cCpOjdlQ%3D&reserved=0>
> >
> > I have no problem with species being recognized solely by molecular
> > differences as this is no different to species recognized by internal
> > structural differences that are not evident externally (i.e. the defining
> > characteristics are 'cryptic'. The authors note that " identification
> > without reference to source locality is most reliably achieved by DNA as
> > follows, with representative (see Remarks section) diagnostic single
> > nucleotide polymorphisms (SNPs) that are fixed for S. curiosolus"  In
> their
> > Remarks section they note that " 21,985 SNPs across 22 scaffolds that
> were
> > fixed for alternate nucleotides between individuals from Alberta and
> those
> > from Montana and British Columbia"
> >
> > I'm no molecular population theorists, but hopefully some on TAXACOM are,
> > and could comment on this, whether it is a strong indicator of species
> > level divergence rather than a geographic population divergence within a
> > molecular polytypic species.
> >
> > Cheers,
> >
> > John Grehan
> > --
> > https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhepialidsoftheworld.com.au%2F&data%7C02%7Ctaxacom%40lists.ku.edu%7Cf09d64ee623d49499f0e08dd85a13e49%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638813649774083035%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=%2F2LWbHTWqUI7r3EBuDELZPF%2BIR49cFxP5z4MbJVM3OM%3D&reserved=0 (use the 'visit archived web site'
> > link, then the 'Ghost Moth Research page' link.
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>
> --
> Dr. David Campbell
> Professor, Geology
> Department of Natural Sciences
> 110 S Main St, #7270
> Gardner-Webb University
> Boiling Springs NC 28017
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