[Taxacom] OMG! DNA only descriptions! - Round Three

Alan Franck afranck at mail.usf.edu
Tue Aug 4 13:42:39 CDT 2020


Hi all,

The description of Rhizopogon kretzerae was accompanied by a detailed
morphological description of cultured mycelia and a holotype deposited at
DAOM.
https://doi.org/10.1139/cjb-2013-0309

Kind regards,

Alan


On Tue, Aug 4, 2020 at 2:30 PM Adolf Ceska via Taxacom <
taxacom at mailman.nhm.ku.edu> wrote:

> Rhizopogon kretzerae was described only from the DNA obtained from
> mycorrhizal roots of Pterospora andromedea and Pinus strobus - see
> https://www.ou.edu/cas/botany-micro/ben/ben516.html#3 (BEN plates do no
> work in the COVID-19 quarantine).
> Index Fungorum does not see any problems with this:
> http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=550254
> What if Rhizopogon kretzerae does never produce fruiting bodies as the
> authors postulated?
>
> Adolf Ceska, Victoria, BC, Canada
>
>
> -----Original Message-----
> From: Taxacom [mailto:taxacom-bounces at mailman.nhm.ku.edu] On Behalf Of
> Joey Slowik via Taxacom
> Sent: Tuesday, August 4, 2020 10:45
> To: Carlos Alberto Martínez Muñoz
> Cc: Taxa com
> Subject: Re: [Taxacom] OMG! DNA only descriptions! - Round Three
>
> I haven't read Meierotto et al. (2019) but have done a bit with DNA
> barcoding. I don't see how that little bit of information could be used for
> species descriptions alone. There have been arguments for Generic elevation
> based on DNA barcodes with some success in crab spiders, for example
> Breitling, R. (2019a). But it seems like with spiders anyway you need some
> physical attributes as well, or more DNA.
> This never rids mtDNA of always presenting the identification of the
> mother in introgression. In my work I have come across species which
> barcoded out as one species and morphologically was another. A clear sign
> of introgression, and would be an incorrect ID using barcode alone.
>
> Just a couple thoughts
>
> Joey Slowik
> UAF
>
> On 8/4/20, Carlos Alberto Martínez Muñoz via Taxacom <
> taxacom at mailman.nhm.ku.edu> wrote:
> > Dear Taxacomers,
> > I bring to your attention a new chapter on the Meierotto et al. (2019)
> saga:
> > Zamani et al. (2020): The omission of critical data in the pursuit of
> > ‘revolutionary’ methods to accelerate the description of species.
> > https://www.researchgate.net/publication/343408816_The_omission_of_cri
> > tical_data_in_the_pursuit_of_'revolutionary'_methods_to_accelerate_the
> > _description_of_species
> >
> > "In our eyes, methodological changes to the way species are delineated
> > and described are an important component of increasing the rate of
> > species description, but dismissing the existing literature, and
> > producing ‘descriptions’ that contain almost no information on the
> > morphology of species, its variation, their unique features, their
> > biology, or other aspects, do not constitute a revolution, and cannot be
> adopted."
> >
> > Kind regards,
> >
> > Carlos A. Martínez Muñoz
> > Zoological Museum, Biodiversity Unit
> > FI-20014 University of Turku
> > Finland
> > Myriatrix <http://myriatrix.myspecies.info/>
> > ResearchGate profile
> > <https://www.researchgate.net/profile/Carlos_Martinez-Munoz>
> > Myriapod Morphology and Evolution
> > <https://www.facebook.com/groups/205802113162102/>
>
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