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Transcript of Derek D. Houston 1,2, Dennis K. Shiozawa 1, and Brett R. Riddle 2 1 Department of Biology, Brigham...
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Derek D. Houston1,2, Dennis K. Shiozawa1 , and Brett R. Riddle2
1Department of Biology, Brigham Young University, Provo, UT
2School of Life Sciences, University of Nevada, Las Vegas
Phylogenetic Relationships, Molecular Dating, And Phylogeography Of The Western North
American Genus Richardsonius
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Western North America
Geological changes
- Miocene (23.0 – 5.3 Ma)
- Pliocene(5.3 – 2.6 Ma)
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Climatic Changes
- Pleistocene (2.6 – 0.01 Ma)
- Holocene(0.01 – 0.0 Ma)
Western North America
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Western North America
Geological and climatic changes to the landscape have influenced genetic diversity across a wide variety of taxa
Given their reduced vagility compared to terrestrial organisms, freshwater taxa may maintain a more intact genetic signature of these processes
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Richardsonius
R. egregiusR. balteatus
- R. b. balteatus- R. b. hydrophlox
Redrawn after Lee et al.,1980
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C. elongatus
C. funduloides
Clinostomus
Illustration by E. Edmondson & H. Chrisp (NYSDC)
www.fishbase.org Redrawn after Lee et al.,1980
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Monotypic genus
I. phlegethontis
National Audobon Society
Redrawn after Lee et al.,1980;
Mock & Miller, 2005
Iotichthys
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Coburn & Cavender, 1992
Estabrook et al., 2007Simons et al., 2003
Smith et al., 2002
Simons & Mayden, 1999
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R. egregius
R. balteatus
I. phlegethontis
C. elongatus
C. funduloides
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Objectives
Address phylogenetic relationships of these genera– Clinostomus vs. Iotichthys as sister to Richardsonius?
Assess monophyly of Richardsonius with respect to Iotichthys.
Reciprocal monophyly of R. balteatus and R. egregius?
Establish a time frame for evolution of this group.
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R. balteatus
M. caurinus
P. macrolepidotus
C. funduloides
C. elongatus
I. phlegethontis1.00
1.00
1.00
1.00
1.00
R. egregius
87 / 98
100 / 100
100 / 100
100 / 99
98 / 100
100 / 93 / 0.99
0.05
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300 km
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0.01
C. elongatus
I. phlegethontis
R. egregius
R. balteatus
M. caurinus
C. funduloides
W
E
Co
Ci
B
99 / 100 1.00
83 / 99 1.00
99 / 100 1.00
99 / 99 1.00
100 / 100 1.00
100 / 100 1.00
98 / 83 1.00
84 / 97 1.00
100 / 100 1.00
73 / 98 1.00
92 / 86 / 1.00
95 / 97 / 1.00
79 / 97 / 1.00
mtDNA - cytochrome b - control region
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300 km
0.01
C. elongatus
I. phlegethontis
R. egregius
R. balteatus
M. caurinus
C. funduloides
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C. funduloides (BR7257b)
0.2
I. phlegethontis (LU8237a)
R. balteatus (SL7871a)
R. balteatus (HN7234)
R. balteatus (KT9001b)
R. egregius (WK7277a)
R. balteatus (EK7334)
R. balteatus (TE7214b)
R. egregius (MC7881b)
R. balteatus (CA6291b)
R. balteatus (TP7284)
R. balteatus (DB9251b)
R. balteatus (EK7335)
R. balteatus (TE7214a)
R. balteatus (SL7871b)
R. egregius (WK7275)R. egregius (WK7277b)
R. egregius (MC7881a)
R. balteatus (CW8247)
R. balteatus (MN8042)
R. balteatus (HB7861)
C. elongatus (KK7294)
R. balteatus (DB9252a)
R. balteatus (CA6291a)
C. funduloides (BR7257a)C. elongatus (KK7295)
R. balteatus (KT9001a)
R. balteatus (DB9252b)
R. egregius (TK7265b)
R. balteatus (SJ7224)
R. balteatus (DB9251a)
R. egregius (TK7265a)
M. caurinus (PM1)
R. balteatus (SI8452)
R. balteatus (TE7216)
R. balteatus
R. egregius
100 / 100
1.00100 / 100
1.00
I. phlegethontis (LU8237b)
100 / 100
1.00
87 / 97
1.0
89 / 90
1.00
79 / 79
0.96
70 / 81
1.00
81 / 64
1.00
70 / <60 / 0.93
62 / 65 / 0.9865 / 69 / 0.99
83 / 64 / 0.99
64 / 65 0.99
61 / 65 / 0.97
nuDNA - S7 first intron
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Time (My)
10 8 6 4 2 0
Miocene Pliocene Pleistocene
C. elongatus
R. balteatus (B)
C. funduloides
I. phlegethontis
R. egregius (E)
R. balteatus (Ci)
R. balteatus (Co)
M. caurinus
R. egregius (W)
C1
C2
C2
Earliest known Mylocheilus fossil (7.0 Ma)Earliest known Richardsonius fossil (3.5 Ma)
C1
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Time (My)
10 8 6 4 2 0
Miocene Pliocene Pleistocene
C. elongatus
R. balteatus (B)
C. funduloides
I. phlegethontis
R. egregius (E)
R. balteatus (Ci)
R. balteatus (Co)
M. caurinus
R. egregius (W)
4.95.7
mtDNA
nuDNA
C1
C2
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Snake River
HumRiver
boldt
Columbia River
Sacr
amen
to
River
Klamath River
Colorado River
Saskatchewan River
Missouri River
?
Miocene – Pliocene- Missouri River connection
Fish Smith, 1981; Smith et al., 2000
Spring Snails Hershler & Gustafson, 2001
Hershler et al., 2008
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Time (My)
10 8 6 4 2 0
Miocene Pliocene Pleistocene
C. elongatus
R. balteatus (B)
C. funduloides
I. phlegethontis
R. egregius (E)
R. balteatus (Ci)
R. balteatus (Co)
M. caurinus
R. egregius (W)
mtDNA
nuDNA
3.73.5
C1
C2
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Pliocene connections between Bonneville and Lahontan Basins
Fish Miller, 1958;
Minckley et al., 1986
Mollusks Taylor, 1985
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Time (My)
10 8 6 4 2 0
Miocene Pliocene Pleistocene
C. elongatus
R. balteatus (B)
C. funduloides
I. phlegethontis
R. egregius (E)
R. balteatus (Ci)
R. balteatus (Co)
M. caurinus
R. egregius (W)
mtDNA
nuDNA
2.12.8
C1
C2
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Snake River capture
3.2 – 2.5 Ma Link et al., 2002 Beranek et al., 2006
Event may have put both species of Richardsonius on unique evolutionary trajectories.
Snake River
HumRiver
boldt
Columbia River
Sacr
amen
to
River
Klamath River
Colorado River
Saskatchewan River
Missouri River
Hells Canyon
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Time (My)
10 8 6 4 2 0
Miocene Pliocene Pleistocene
C. elongatus
R. balteatus (B)
C. funduloides
I. phlegethontis
R. egregius (E)
R. balteatus (Ci)
R. balteatus (Co)
M. caurinus
R. egregius (W)
mtDNA
nuDNA
1.51.4
1.81.6
C1
C2
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AcknowledgementsAdvisory CommitteeDr. John KlickaDr. Javier RodríguezDr. Stephen Rowland
UNLV Systematics GroupStacy MantoothMarkus MikaBrian SmithGarth SpellmanJeff DaCostaRob BrysonSean NeiswenterLois AlexanderTereza JezkovaMallory EckstutOthers
FundingNational Science FoundationGraduate and Professional Student
Association (UNLV)
Provided SamplesGavin Hanke – RBCMMike McGee – BLMJerry Vogt – ODFWPaul Sheerer – ODFWJay Potter – ODFWDan Jenkins - ODFWNathan Brindza – IDFGKim Tisdale - NDOWMatt McKell – UDWR