Attached is a PDF of a recent paper by Kyle Piller and colleagues on the phylogeny of E. blennioides. There are some nice range maps. Enjoy!
Etheostoma blennioides phylogeny
#1 Guest_TomNear_*
Posted 07 August 2008 - 09:19 AM
Attached is a PDF of a recent paper by Kyle Piller and colleagues on the phylogeny of E. blennioides. There are some nice range maps. Enjoy!
#2 Guest_blakemarkwell_*
Posted 07 August 2008 - 10:49 AM
Blake
#3 Guest_dsmith73_*
Posted 07 August 2008 - 11:11 AM
#4 Guest_TomNear_*
Posted 07 August 2008 - 11:16 AM
Mitochondrial DNA is very useful to investigate relationships among closely related species, but the mitochondrial genome can cross species boundaries as a result of hybridization much easier than nuclear encoded gene copies.
#5 Guest_dsmith73_*
Posted 07 August 2008 - 11:19 AM
#6 Guest_AndrewAcropora_*
Posted 07 August 2008 - 01:49 PM
Thanks for sharing.
#7 Guest_farmertodd_*
Posted 10 August 2008 - 02:47 PM
As you might guess Dustin, newmanii is a mess. It seems it deserves a river by river analysis to make conclusions about the complex. East of the Mississippi, E. b. blennoides and philodotum are pretty clear cut. But then there's that Kentucky and Green Rivers "newmanii" thing, and once in the Tennessee... It's all bets off. Then you have the Ozark mess.
I don't envy any the task of getting funding to get the appropriate numbers of samples to say something that's clear. That might make a good NANFA-wide project, where folks get material, and ship it to a lab for analysis. I'm just back from the Ecological Society meeting, and citizen based science looks pretty danged sexy on "Greater Impacts", so I hear <wink wink> <nudge nudge>
Todd
#8 Guest_ashtonmj_*
Posted 10 August 2008 - 03:08 PM
I'm just back from the Ecological Society meeting, and citizen based science looks pretty danged sexy on "Greater Impacts", so I hear <wink wink> <nudge nudge>
Todd
Yeah, think of the money you can save by acquiring a wide array and/or large number of samples that way....While everyone certainly likes to collect their own data (specimens) for a host of reasons, QC/QA, the fun of field work, etc., etc., the fact is a roughly 2,000 sq mi range can be quite difficult and exspensive to adequately traverse. Boots are already on the ground (DNR's, poor grad students, NANFA'ns), in the right areas, and with (most of) the proper equipment to collaborate and meet these challenges. I'll get off my enthusiastic soapbox now.
Tom, what can I take from the analysis of the specimens (27,28) from the Potomac and Susquehanna? There is really no mention of them outside of the introduction (post glaciation dispersal hypothesis) and Table 1. They show up in Figure 2 in the lowest branch, but have the lowest posterior probability.
#9 Guest_TomNear_*
Posted 11 August 2008 - 01:57 PM
#10 Guest_farmertodd_*
Posted 11 August 2008 - 06:29 PM
This might be some of what the seeming "uniqueness" is for the blennoides haplotype in the Susq and Potomac.
Kinda throws out that you need genetic diversity to maintain metapopluations in some ways, doesn't it? Perhaps it only suggests that some individual species invasions can be maintained on less, and that the rapid expansion is facilitated by zoogeography (low richness, available resources) and/or disturbance... But yeah, you could speculate on this all night long
Todd "Armchair Geneticist" Crail
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