@ARTICLE{TreeBASE2Ref27673,
author = {David Ortiz and Oscar F. Francke and Jason Bond},
title = {A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas},
year = {2018},
keywords = {ancestral state reconstruction; divergence time estimation; marker informativeness; molecular clock; molecular phylogeny; morphological homoplasy; Mygalomorphae; Theraphosidae},
doi = {10.1016/j.ympev.2018.05.013},
url = {},
pmid = {},
journal = {Molecular Phylogenetics and Evolution},
volume = {},
number = {},
pages = {},
abstract = {Tarantula spider systematics has long been considered problematic. Species diagnosis and phylogenetic hypotheses have historically relied on morphological features, which are known to be relatively conserved and/or highly homoplastic across the family. Morphology-based attempts to clarify the phylogeny of the highly diverse New World Theraphosinae, have only been moderately successful, and the time-frame of tarantulas? evolution is nearly terra incognita. Here we present a molecular phylogenetic analysis of the Theraphosinae genus Bonnetina and related
lineages, employing one mitochondrial (COI) and five nuclear (ITS1, EF1G, MID1IP1, MRPL44, and I3568) loci. We
also perform ancestral state reconstruction of a newly formulated morphological data matrix. Our analysis includes 47
species placed in 17 genera and other undetermined lineages. We obtained well resolved and supported topologies.
COI and EF1G substitution rates were much lower than the values generally accepted for mygalomorph evolution, with
substantial rate heterogeneity among lineages. The origin of Theraphosinae was dated during the Late Cretaceous,
followed by rapid diversification into the three recently proposed Theraphosinae tribes. North and Central American
Hapalopini (including Bonnetina) form a monophyletic group that likely originated during the Oligocene to a dispersing
ancestor from the then isolated South America. A clade that includes all but one Bonnetina species is estimated to
have originated in the early Miocene and is the sister group of two morphologically divergent undescribed species.
Morphological homoplasy is extensive across the tree. The two features that diagnose Bonnetina are homoplastic, but
in combination still define the genus. Finally, we establish three groups of species within Bonnetina. Our results
challenge the reliability of morphological characters for phylogenetic reconstruction in Theraphosinae, and indicate
caution when interpreting Theraphosidae supra-specific classification in absence of a solid phylogenetic framework.
They also question the dependability of universal substitution rates of COI and EF1G to calibrate phylogenetic
analyses across Mygalomorphae.}
}
Citation for Study 21645
Citation title:
"A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas".
Study name:
"A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas".
This study is part of submission 21645
(Status: Published).
Citation
Ortiz D., Francke O.F., & Bond J. 2018. A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas. Molecular Phylogenetics and Evolution, .
Authors
-
Ortiz D.
(submitter)
+13054589103
-
Francke O.F.
-
Bond J.
3348448713
Abstract
Tarantula spider systematics has long been considered problematic. Species diagnosis and phylogenetic hypotheses have historically relied on morphological features, which are known to be relatively conserved and/or highly homoplastic across the family. Morphology-based attempts to clarify the phylogeny of the highly diverse New World Theraphosinae, have only been moderately successful, and the time-frame of tarantulas? evolution is nearly terra incognita. Here we present a molecular phylogenetic analysis of the Theraphosinae genus Bonnetina and related
lineages, employing one mitochondrial (COI) and five nuclear (ITS1, EF1G, MID1IP1, MRPL44, and I3568) loci. We
also perform ancestral state reconstruction of a newly formulated morphological data matrix. Our analysis includes 47
species placed in 17 genera and other undetermined lineages. We obtained well resolved and supported topologies.
COI and EF1G substitution rates were much lower than the values generally accepted for mygalomorph evolution, with
substantial rate heterogeneity among lineages. The origin of Theraphosinae was dated during the Late Cretaceous,
followed by rapid diversification into the three recently proposed Theraphosinae tribes. North and Central American
Hapalopini (including Bonnetina) form a monophyletic group that likely originated during the Oligocene to a dispersing
ancestor from the then isolated South America. A clade that includes all but one Bonnetina species is estimated to
have originated in the early Miocene and is the sister group of two morphologically divergent undescribed species.
Morphological homoplasy is extensive across the tree. The two features that diagnose Bonnetina are homoplastic, but
in combination still define the genus. Finally, we establish three groups of species within Bonnetina. Our results
challenge the reliability of morphological characters for phylogenetic reconstruction in Theraphosinae, and indicate
caution when interpreting Theraphosidae supra-specific classification in absence of a solid phylogenetic framework.
They also question the dependability of universal substitution rates of COI and EF1G to calibrate phylogenetic
analyses across Mygalomorphae.
Keywords
ancestral state reconstruction; divergence time estimation; marker informativeness; molecular clock; molecular phylogeny; morphological homoplasy; Mygalomorphae; Theraphosidae
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S21645
- Other versions:
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NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref27673,
author = {David Ortiz and Oscar F. Francke and Jason Bond},
title = {A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas},
year = {2018},
keywords = {ancestral state reconstruction; divergence time estimation; marker informativeness; molecular clock; molecular phylogeny; morphological homoplasy; Mygalomorphae; Theraphosidae},
doi = {10.1016/j.ympev.2018.05.013},
url = {},
pmid = {},
journal = {Molecular Phylogenetics and Evolution},
volume = {},
number = {},
pages = {},
abstract = {Tarantula spider systematics has long been considered problematic. Species diagnosis and phylogenetic hypotheses have historically relied on morphological features, which are known to be relatively conserved and/or highly homoplastic across the family. Morphology-based attempts to clarify the phylogeny of the highly diverse New World Theraphosinae, have only been moderately successful, and the time-frame of tarantulas? evolution is nearly terra incognita. Here we present a molecular phylogenetic analysis of the Theraphosinae genus Bonnetina and related
lineages, employing one mitochondrial (COI) and five nuclear (ITS1, EF1G, MID1IP1, MRPL44, and I3568) loci. We
also perform ancestral state reconstruction of a newly formulated morphological data matrix. Our analysis includes 47
species placed in 17 genera and other undetermined lineages. We obtained well resolved and supported topologies.
COI and EF1G substitution rates were much lower than the values generally accepted for mygalomorph evolution, with
substantial rate heterogeneity among lineages. The origin of Theraphosinae was dated during the Late Cretaceous,
followed by rapid diversification into the three recently proposed Theraphosinae tribes. North and Central American
Hapalopini (including Bonnetina) form a monophyletic group that likely originated during the Oligocene to a dispersing
ancestor from the then isolated South America. A clade that includes all but one Bonnetina species is estimated to
have originated in the early Miocene and is the sister group of two morphologically divergent undescribed species.
Morphological homoplasy is extensive across the tree. The two features that diagnose Bonnetina are homoplastic, but
in combination still define the genus. Finally, we establish three groups of species within Bonnetina. Our results
challenge the reliability of morphological characters for phylogenetic reconstruction in Theraphosinae, and indicate
caution when interpreting Theraphosidae supra-specific classification in absence of a solid phylogenetic framework.
They also question the dependability of universal substitution rates of COI and EF1G to calibrate phylogenetic
analyses across Mygalomorphae.}
}
- Show RIS reference
TY - JOUR
ID - 27673
AU - Ortiz,David
AU - Francke,Oscar F.
AU - Bond,Jason
T1 - A Tangle of Forms and Phylogeny: Extensive Morphological Homoplasy and Molecular Clock Heterogeneity in Bonnetina and Related Tarantulas
PY - 2018
KW - ancestral state reconstruction; divergence time estimation; marker informativeness; molecular clock; molecular phylogeny; morphological homoplasy; Mygalomorphae; Theraphosidae
UR -
N2 - Tarantula spider systematics has long been considered problematic. Species diagnosis and phylogenetic hypotheses have historically relied on morphological features, which are known to be relatively conserved and/or highly homoplastic across the family. Morphology-based attempts to clarify the phylogeny of the highly diverse New World Theraphosinae, have only been moderately successful, and the time-frame of tarantulas? evolution is nearly terra incognita. Here we present a molecular phylogenetic analysis of the Theraphosinae genus Bonnetina and related
lineages, employing one mitochondrial (COI) and five nuclear (ITS1, EF1G, MID1IP1, MRPL44, and I3568) loci. We
also perform ancestral state reconstruction of a newly formulated morphological data matrix. Our analysis includes 47
species placed in 17 genera and other undetermined lineages. We obtained well resolved and supported topologies.
COI and EF1G substitution rates were much lower than the values generally accepted for mygalomorph evolution, with
substantial rate heterogeneity among lineages. The origin of Theraphosinae was dated during the Late Cretaceous,
followed by rapid diversification into the three recently proposed Theraphosinae tribes. North and Central American
Hapalopini (including Bonnetina) form a monophyletic group that likely originated during the Oligocene to a dispersing
ancestor from the then isolated South America. A clade that includes all but one Bonnetina species is estimated to
have originated in the early Miocene and is the sister group of two morphologically divergent undescribed species.
Morphological homoplasy is extensive across the tree. The two features that diagnose Bonnetina are homoplastic, but
in combination still define the genus. Finally, we establish three groups of species within Bonnetina. Our results
challenge the reliability of morphological characters for phylogenetic reconstruction in Theraphosinae, and indicate
caution when interpreting Theraphosidae supra-specific classification in absence of a solid phylogenetic framework.
They also question the dependability of universal substitution rates of COI and EF1G to calibrate phylogenetic
analyses across Mygalomorphae.
L3 - 10.1016/j.ympev.2018.05.013
JF - Molecular Phylogenetics and Evolution
VL -
IS -
ER -