Date: Tue, 6 Oct 2009 18:58:11 -0400
Reply-To: Conchologists List <CONCH-L@LISTSERV.UGA.EDU>
Sender: Conchologists List <CONCH-L@LISTSERV.UGA.EDU>
From: "Harry G. Lee" <shells@HGLEE.COM>
Subject: Re: Florida Geukensia
I must admit that the journals you cite aren't on
my subscription list, so I found .pdf's of the papers (URL's inserted below).
I understand Dr. Ó Foighil was a Bailey-Matthews
Shell Museum Visiting Curator not long ago.
Perhaps you have a better sense of the
zoogeography of Geukensia demissa and of G.
granosissima as a result of that association.
Can you share?
At 06:31 PM 10/6/2009, you wrote:
>Actually the molecular work on Geukensia was
>done partially by Taehwan Lee and Diarmaid Ã“
>Foighil (below). They used Ischadium recurvum,
>Geukensia demissa, and G. granosissima as
>outgroups in molecular studies of species of
>Brachidontes. Both combined (28S and ITS1)
>nuclear ribosomal (left) and mitochondrial COI
>(right) datasets suggested to these authors that
>G. granosissima is more closely related to
>Ischadium recurvum than it is to G.
>demissa. One of the possible interpretation of
>their results, from the taxonomic standpoint, is
>that Ischadium recurvum could be just another species of Geukensia.
>Lee, T. and D. Ã“ Foighil. 2004. Hidden
>Floridian biodiversity: mitochondrial and
>nuclear gene trees reveal four cryptic species
>within the scorched mussel, Brachidontes
>exustus, species complex. Molecular Ecology 13,
>Lee, T. and Ã“ Foighil. 2005. PLACING THE
>FLORIDIAN MARINE GENETIC DISJUNCTION INTO A
>REGIONAL EVOLUTIONARY CONTEXT USING THE SCORCHED
>MUSSEL, BRACHIDONTES EXUSTUS, SPECIES COMPLEX.
>Evolution 59(10): 213921158
>Cheers from Sanibel,
>JosÃ© H. Leal, Ph.D., Director and Curator
>The Bailey-Matthews Shell Museum
>Editor, The Nautilus