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>
Comments:     RFC822 error: <W> MESSAGE-ID field duplicated. Last occurrence
              was retained.
From:         "Harry G. Lee" <shells@HGLEE.COM>
Subject:      Re: Florida Geukensia
Content-Type: multipart/alternative;

Dear José,

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?

Harry


At 06:31 PM 10/6/2009, you wrote:
>Actually the molecular work on Geukensia was 
>done partially by Taehwan Lee and Diarmaid Ó 
>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. Ó 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, 
>3527­3542 (doi: 
>10.1111/j.1365-294X.2004.02337.x) 
><http://www.ummz.umich.edu/mollusks/people/diarmaid/leeME2004.pdf>
>Lee, T. and Ó 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 
><http://www.eeb.lsa.umich.edu/eeb/people/diarmaid/Evolution.pdf>.
>
>Cheers from Sanibel,
>
>José
>________________________________________________________
>José H. Leal, Ph.D., Director and Curator
>The Bailey-Matthews Shell Museum
>Editor, The Nautilus
>www.shellmuseum.org

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