A molecular timescale for caviomorph rodents (Mammalia, Hystricognathi)

Opazo, Juan C.

doi:10.1016/j.ympev.2005.05.002

Cited by 112 publications

(99 citation statements)

References 23 publications

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“…This suggests that the lineage that originated aspidoderid nematodes and the early diversification may have been associated with an ancestor of dasypodids (armadillos). Although this observation is congruent with the sequence of origin and diversification for Dasypodidae, dated 40 6 9 mya (Delsuc et al, 2004), and hystricognaths in the new World, dated 33.8 6 1.8 mya (Opazo, 2005), the reconstruction of the ancestor should be treated as ambiguous as indicated by all parsimony-based analyses. In addition, Dasypodidae is ambiguously reconstructed as the synapomorphic host for Aspidoderidae, as well as for each of the 3 main clades recovered in the phylogeny (Fig.…”

Section: Reconstruction Of Ancestral States: Associations With Hostssupporting

confidence: 65%

“…3). Hystricognaths and geomyids have quite distinct evolutionary histories and geographic origins (Spradling et al, 2004;Opazo, 2005;Poux et al, 2006). The dispersal of hystricognaths northward would have resulted in a host-switching event toward geomyids.…”

Section: Reconstruction Of Ancestral States: Associations With Hostsmentioning

confidence: 99%

“…This phenomenon, known as the Great American Interchange, resulted in the evolutionary diversification of several groups with different origins and evolutionary trajectories (D'El´ıa, 2003;Opazo, 2005;Poux et al, 2006;Weksler, 2006;Dunnum and Salazar-Bravo, 2010). As a result of this diversification, some of these groups converged to exhibit similar habits, as well as morphological and even physiological features.…”

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confidence: 99%

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Four Events of Host Switching in Aspidoderidae (Nematoda) Involve Convergent Lineages of Mammals

Jiménez¹,

Gardner²,

Navone³

et al. 2012

Journal of Parasitology

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Section: Reconstruction Of Ancestral States: Associations With Hostssupporting

confidence: 65%

Section: Reconstruction Of Ancestral States: Associations With Hostsmentioning

confidence: 99%

mentioning

confidence: 99%

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Four Events of Host Switching in Aspidoderidae (Nematoda) Involve Convergent Lineages of Mammals

Jiménez¹,

Gardner²,

Navone³

et al. 2012

Journal of Parasitology

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“…One critical issue that has hindered understanding of the group's historical biogeography is the phylogenetic position of the family Hystricidae, which has been placed as either the sister group of a phiomorph-caviomorph clade or as the sister group of Caviomorpha, in recent molecular phylogenetic analyses (9,(19)(20)(21). Temporal and tectonic constraints on competing biogeographic hypotheses have also been limited by radically different molecular estimates of the phiomorph-caviomorph split, which range in age from Ϸ85 Ma to Ϸ36 Ma (9,18,19,22,23).…”

mentioning

confidence: 99%

Fossil and molecular evidence constrain scenarios for the early evolutionary and biogeographic history of hystricognathous rodents

Sallam

Seiffert

Steiper

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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The early evolutionary and paleobiogeographic history of the diverse rodent clade Hystricognathi, which contains Hystricidae (Old World porcupines), Caviomorpha (the endemic South American rodents), and African Phiomorpha (cane rats, dassie rats, and blesmols) is of great interest to students of mammalian evolution, but remains poorly understood because of a poor early fossil record. Here we describe the oldest well-dated hystricognathous rodents from an earliest late Eocene (Ϸ37 Ma) fossil locality in the Fayum Depression of northern Egypt. These taxa exhibit a combination of primitive and derived features, the former shared with Asian ''baluchimyine'' rodents, and the latter shared with Oligocene phiomorphs and caviomorphs. Phylogenetic analysis incorporating morphological, temporal, geographic, and molecular information places the new taxa as successive sister groups of crown Hystricognathi, and supports an Asian origin for stem Hystricognathi and an Afro-Arabian origin for crown Hystricognathi, stem Hystricidae, and stem Caviomorpha. Molecular dating of early divergences within Hystricognathi, using a Bayesian ''relaxed clock'' approach and multiple fossil calibrations, suggests that the split between Hystricidae and the phiomorphcaviomorph clade occurred Ϸ39 Ma, and that phiomorphs and caviomorphs diverged Ϸ36 Ma. These results are remarkably congruent with our phylogenetic results and the fossil record of hystricognathous rodent evolution in Afro-Arabia and South America.

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“…rootHeight in the Bayesian analysis with a normal distribution and a standard deviation. This value was based on an estimated split between the ancestor of the capybaras and Kerodon to have occurred 16-12 MYA [95][96][97]. Another prior included the split of the ancestors of paca and capybara (25.25 + 2.4 MYA, average from [95]: 26.5 MYA, and from [96]: 24 MYA).…”

Section: Population Genetics and Phylogenetic Analysesmentioning

confidence: 99%

Continuous Miocene, Pliocene and Pleistocene Influences on Mitochondrial Diversification of the Capybara (Hydrochoerus Hydrochoeris; Hydrochoeridae, Rodentia): Incapacity to Determine Exclusive Hypotheses on the Origins of the Amazon and Orinoco Diversity for This Species

Ruiz‐García¹,

Luengas-Villamil²,

Pinedo-Castro³

et al. 2016

J Phylogenetics Evol Biol

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The capybara (Hydrochoerus hydrochoeris) is the largest rodent on the world and it is strongly linked to the river systems of a large fraction of South America and part of Central America (Panama). Thus, it is an interesting species to test hypotheses about the origin of the high biodiversity within the Amazon Basin and in a sizeable fraction of the Neotropics. To test these hypotheses, we sequenced two mitochondrial genes (control region and Cytochrome b) of 78 wild capybaras sampled in Colombia, Peru, Ecuador and Brazil. At least, five different "populations" or ESUs were detected in well delimited geographical areas. However, our results do not support the more recent view that two different species of capybara are present (H. hydrochoeris and H. isthmus), unless chromosomal speciation (stasipatric or parapatric) can be demonstrated between these two groups. A Bayesian tree with the aforementioned two mitochondrial genes, and another Bayesian tree with a subset of 25 capybaras for 10 mitochondrial genes, showed that the initial diversification of the mitochondrial haplotype in capybaras was initiated in the Late Miocene. The trees also showed that the other haplotype diversification processes extended into the Pliocene and Pleistocene. We also detected population expansion events during different moments of the Pleistocene. Although some authors strongly suggest that the Miocene diversification explains the extreme biodiversity in the Amazon Basin and in surroundings areas (for instance, the Paleogeography hypothesis), others consider it the result of available forest refugia (Refuge hypothesis) during the Pleistocene. However, our results suggest that both hypotheses (and others, such as the Riverrefuge, the Recent Lagoon and the Hydrogeological Recent Change hypotheses) could have affected the evolution of the capybara to generate the current mitochondrial diversity. Thus, it is difficult to generalize a unique Amazon biota diversification hypothesis because each species or taxon could be affected by different processes and because the temporal antiquity of each taxon in South America is also different. Many mammalian taxa, and others, migrated into South America during the Great American Biotic Interchange (GABI) and their diversification processes in South America were mainly driven by Pleistocene events as those proposed by the Refuge hypothesis. Older taxa within this continent could have begun their current genetics diversification processes earlier, such as in the case of the capybara.

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A molecular timescale for caviomorph rodents (Mammalia, Hystricognathi)

Cited by 112 publications

References 23 publications

Four Events of Host Switching in Aspidoderidae (Nematoda) Involve Convergent Lineages of Mammals

Four Events of Host Switching in Aspidoderidae (Nematoda) Involve Convergent Lineages of Mammals

Fossil and molecular evidence constrain scenarios for the early evolutionary and biogeographic history of hystricognathous rodents

Continuous Miocene, Pliocene and Pleistocene Influences on Mitochondrial Diversification of the Capybara (Hydrochoerus Hydrochoeris; Hydrochoeridae, Rodentia): Incapacity to Determine Exclusive Hypotheses on the Origins of the Amazon and Orinoco Diversity for This Species

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