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Niimura Y, Biswa BB, Kishida T, Toyoda A, Fujiwara K, Ito M, Touhara K, Inoue-Murayama M, Jenkins SH, Adenyo C, Kayang BB, Koide T. Synchronized Expansion and Contraction of Olfactory, Vomeronasal, and Taste Receptor Gene Families in Hystricomorph Rodents. Mol Biol Evol 2024; 41:msae071. [PMID: 38649162 PMCID: PMC11035023 DOI: 10.1093/molbev/msae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/02/2024] [Accepted: 03/03/2024] [Indexed: 04/25/2024] Open
Abstract
Chemical senses, including olfaction, pheromones, and taste, are crucial for the survival of most animals. There has long been a debate about whether different types of senses might influence each other. For instance, primates with a strong sense of vision are thought to have weakened olfactory abilities, although the oversimplified trade-off theory is now being questioned. It is uncertain whether such interactions between different chemical senses occur during evolution. To address this question, we examined four receptor gene families related to olfaction, pheromones, and taste: olfactory receptor (OR), vomeronasal receptor type 1 and type 2 (V1R and V2R), and bitter taste receptor (T2R) genes in Hystricomorpha, which is morphologically and ecologically the most diverse group of rodents. We also sequenced and assembled the genome of the grasscutter, Thryonomys swinderianus. By examining 16 available genome assemblies alongside the grasscutter genome, we identified orthologous gene groups among hystricomorph rodents for these gene families to separate the gene gain and loss events in each phylogenetic branch of the Hystricomorpha evolutionary tree. Our analysis revealed that the expansion or contraction of the four gene families occurred synchronously, indicating that when one chemical sense develops or deteriorates, the others follow suit. The results also showed that V1R/V2R genes underwent the fastest evolution, followed by OR genes, and T2R genes were the most evolutionarily stable. This variation likely reflects the difference in ligands of V1R/V2Rs, ORs, and T2Rs: species-specific pheromones, environment-based scents, and toxic substances common to many animals, respectively.
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Affiliation(s)
- Yoshihito Niimura
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Bhim B Biswa
- Mouse Genomics Resource Laboratory, National Institute of Genetics, Mishima, Japan
- Department of Genetics, SOKENDAI (The Graduate University for Advanced Studies), Shizuoka, Japan
| | - Takushi Kishida
- Curatorial Division, Museum of Natural and Environmental History, Shizuoka, Japan
- Present address: College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Atsushi Toyoda
- Comparative Genomics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Kazumichi Fujiwara
- Mouse Genomics Resource Laboratory, National Institute of Genetics, Mishima, Japan
| | - Masato Ito
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazushige Touhara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | | | - Scott H Jenkins
- Wildlife Research Center, Kyoto University, Kyoto, Japan
- Present address: Biosphere Informatics Laboratory, Department of Social Informatics, Graduate School of Informatics, Kyoto, Japan
| | - Christopher Adenyo
- Livestock and Poultry Research Centre, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Boniface B Kayang
- Department of Animal Science, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Tsuyoshi Koide
- Mouse Genomics Resource Laboratory, National Institute of Genetics, Mishima, Japan
- Department of Genetics, SOKENDAI (The Graduate University for Advanced Studies), Shizuoka, Japan
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Dias de Oliveira L, Oliveira da Silva W, Rodrigues da Costa MJ, Carneiro JC, Sampaio I, da Silva JS, Rossi RV, Mendes-Oliveira AC, Pieczarka JC, Nagamachi CY. Genetic diversity analysis in the Brazilian Amazon reveals a new evolutionary lineage and new karyotype for the genus Mesomys (Rodentia, Echimyidae, Eumysopinae). PLoS One 2023; 18:e0291797. [PMID: 37792706 PMCID: PMC10550160 DOI: 10.1371/journal.pone.0291797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/06/2023] [Indexed: 10/06/2023] Open
Abstract
Morphological, molecular and chromosomal studies in the genera Lonchothrix and Mesomys have contributed to a better understanding of taxonomic design, phylogenetic relationships and karyotypic patterns. Recent molecular investigations have shown a yet undescribed diversity, suggesting that these taxa are even more diverse than previously assumed. Furthermore, some authors have questioned the limits of geographic distribution in the Amazon region for the species M. hispidus and M. stimulax. In this sense, the current study sought to understand the karyotypic evolution and geographic limits of the genus Mesomys, based on classical (G- and C-banding) and molecular cytogenetic analysis (FISH using rDNA 18S and telomeric probes) and through the sequencing of mitochondrial genes Cytochrome b (Cytb) and Cytochrome Oxidase-Subunit I (CO using phylogeny, species delimitation and time of divergence, from samples of different locations in the Brazilian Amazon. The species M. stimulax and Mesomys sp. presented 2n = 60/FN = 110, while M. hispidus presented 2n = 60/FN = 112, hitherto unpublished. Molecular dating showed that Mesomys diversification occurred during the Plio-Pleistocene period, with M. occultus diverging at around 5.1 Ma, followed by Mesomys sp. (4.1 Ma) and, more recently, the separation between M. hispidus and M. stimulax (3.5 Ma). The ABGD and ASAP species delimiters support the formation of 7 and 8 potential species of the genus Mesomys, respectively. Furthermore, in both analyzes Mesomys sp. was recovered as a valid species. Our multidisciplinary approach involving karyotypic, molecular and biogeographic analysis is the first performed in Mesomys, with the description of a new karyotype for M. hispidus, a new independent lineage for the genus and new distribution data for M. hispidus and M. stimulax.
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Affiliation(s)
- Leony Dias de Oliveira
- Centro de Estudos Avançados da Biodiversidade, Laboratório de Citogenética, ICB, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Willam Oliveira da Silva
- Centro de Estudos Avançados da Biodiversidade, Laboratório de Citogenética, ICB, Universidade Federal do Pará, Belém, Pará, Brazil
| | | | | | - Iracilda Sampaio
- Genômica e Biologia de Sistemas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Juliane Saldanha da Silva
- Laboratório de Mastozoologia, Instituto de Biociências, Universidade Federal do Mato Grosso, Cuiabá, Brazil
| | - Rogério Vieira Rossi
- Laboratório de Mastozoologia, Instituto de Biociências, Universidade Federal do Mato Grosso, Cuiabá, Brazil
| | | | - Julio Cesar Pieczarka
- Centro de Estudos Avançados da Biodiversidade, Laboratório de Citogenética, ICB, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Cleusa Yoshiko Nagamachi
- Centro de Estudos Avançados da Biodiversidade, Laboratório de Citogenética, ICB, Universidade Federal do Pará, Belém, Pará, Brazil
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Coetzer WG. A phylogeographic assessment of South African greater cane rats (Thryonomys swinderianus): Preliminary insights. VERTEBRATE ZOOLOGY 2023. [DOI: 10.3897/vz.73.e94111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
The greater cane rat (Thryonomys swinderianus) is an African rodent with a wide Sub-Saharan distribution range. This species is viewed as an important protein source in many African countries. These rodents are also regularly viewed as a pest species who frequently raid croplands in agricultural settings. No phylogenetic work has to date been published on T. swinderianus from southern Africa. This paper therefore reports the first phylogenetic assessment on the species across the South African distribution range. Thirty samples were sourced from local museum collections, with one direct submission by a member of the public who found a rodent carcass identified as T. swinderianus west of its known distribution range in the Eastern Cape Province of South Africa. Two mitochondrial loci previously used in West African studies of this species were used in the current study to asses T. swinderianus population genetic diversity and phylogenetic structure across the South African distribution. A comparison to sequence data from West Africa was also performed. A divergence time estimation was conducted to further investigate the evolutionary history of the South African sub-population. Similar genetic diversity estimates were observed for the South African sub-population when compared to the West African datasets. Specimens from the eastern parts of South Africa showed higher genetic diversity estimates, possibly indicative of an initial colonisation site from eastern Africa. Two distinct phylogenetic clades were identified by Bayesian inference, forming distinct West African and South African groups. The divergence estimates showed similar ages for the T. swinderianus most recent common ancestor (MRCA) as previously reported. The MRCA estimates for the South African group identified a possible middle to late Pleistocene migratory event from eastern African into southern Africa. Further fine scale sampling across the African distribution range is however needed to provide more accurate assessments for future conservation management planning for the different sub-populations, as needed.
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Beck RMD, de Vries D, Janiak MC, Goodhead IB, Boubli JP. Total evidence phylogeny of platyrrhine primates and a comparison of undated and tip-dating approaches. J Hum Evol 2023; 174:103293. [PMID: 36493598 DOI: 10.1016/j.jhevol.2022.103293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 10/21/2022] [Accepted: 10/21/2022] [Indexed: 12/12/2022]
Abstract
There have been multiple published phylogenetic analyses of platyrrhine primates (New World monkeys) using both morphological and molecular data, but relatively few that have integrated both types of data into a total evidence approach. Here, we present phylogenetic analyses of recent and fossil platyrrhines, based on a total evidence data set of 418 morphological characters and 10.2 kilobases of DNA sequence data from 17 nuclear genes taken from previous studies, using undated and tip-dating approaches in a Bayesian framework. We compare the results of these analyses with molecular scaffold analyses using maximum parsimony and Bayesian approaches, and we use a formal information theoretic approach to identify unstable taxa. After a posteriori pruning of unstable taxa, the undated and tip-dating topologies appear congruent with recent molecular analyses and support largely similar relationships, with strong support for Stirtonia as a stem alouattine, Neosaimiri as a stem saimirine, Cebupithecia as a stem pitheciine, and Lagonimico as a stem callitrichid. Both analyses find three Greater Antillean subfossil platyrrhines (Xenothrix, Antillothrix, and Paralouatta) to form a clade that is related to Callicebus, congruent with a single dispersal event by the ancestor of this clade to the Greater Antilles. They also suggest that the fossil Proteropithecia may not be closely related to pitheciines, and that all known platyrrhines older than the Middle Miocene are stem taxa. Notably, the undated analysis found the Early Miocene Panamacebus (currently recognized as the oldest known cebid) to be unstable, and the tip-dating analysis placed it outside crown Platyrrhini. Our tip-dating analysis supports a late Oligocene or earliest Miocene (20.8-27.0 Ma) age for crown Platyrrhini, congruent with recent molecular clock analyses.
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Affiliation(s)
- Robin M D Beck
- Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK.
| | - Dorien de Vries
- Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK
| | - Mareike C Janiak
- Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK
| | - Ian B Goodhead
- Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK
| | - Jean P Boubli
- Ecosystems and Environment Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK
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5
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Diversification of Amazonian spiny tree rats in genus Makalata (Rodentia, Echimyidae): Cryptic diversity, geographic structure and drivers of speciation. PLoS One 2022; 17:e0276475. [PMID: 36520936 PMCID: PMC9754209 DOI: 10.1371/journal.pone.0276475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 10/10/2022] [Indexed: 12/23/2022] Open
Abstract
Amazonian mammal diversity is exceptionally high, yet new taxonomic discoveries continue to be made and many questions remain for understanding its diversification through time and space. Here we investigate the diversification of spiny rats in the genus Makalata, whose species are strongly associated with seasonally flooded forests, watercourses and flooded islands. We use a biogeographical approach based on a mitochondrial cytochrome b gene through divergence time estimation and reconstruction of ancestral areas and events. Our findings indicate an ancient origin of Makalata for the Guiana Shield and Eastern Amazonia as ancestral area. A first cladogenetic event led to a phylogeographic break into two broader clades of Makalata through dispersal, implying a pattern of western/Eastern Amazonian clades coinciding with the Purus Arch (middle Miocene). Most of subclades we infer originated between the late Pliocene to the early Pleistocene, with few recent exceptions in the early Pliocene through dispersal and vicariant events. The hypothesis of rivers as dispersal barriers is not corroborated for Makalata, as expected for mammalian species associated with seasonally flooded environments. We identify two key events for the expansion and diversification of Makalata species: the presence of geologically stable areas in the Guiana and Brazilian shields and the transition from lacustrine conditions in western Amazonia (Acre system) to a river system, with the establishment of the Amazon River transcontinental system and its tributaries. Our results are congruent with older geological scenarios for the Amazon basin formation (Miocene), but we do not discard the influence of recent dynamics on some speciation events and, mainly, on phylogeographic structuring processes.
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Nacif CL, Bastos DL, Mello B, Lazar A, Hingst-Zaher E, Geise L, Bonvicino CR. Hidden diversity of the genus Trinomys (Rodentia: Echimyidae): phylogenetic and populational structure analyses uncover putative new lineages. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Trinomys, one of the most species-rich spiny rat genera in Brazil, is widely distributed in Caatinga, Cerrado and Atlantic Forest biomes, and currently includes ten recognized species, three of which are polytypic. Although some studies employing molecular data have been conducted to better characterize phylogenetic relationships among species, 19 nominal taxa have been suggested, implying considerable incongruence regarding species boundaries. We addressed this incongruence by intensively sampling all species across the geographic distribution of the genus. In addition to publicly available data, we generated 182 mt-Cytb gene sequences, and employed phylogenetic and computational species delimitation methods to obtain a clearer picture of the genus diversity. Moreover, we evaluated populational diversity within each accepted species, considering their geographical distribution and a timescale for the evolution of the genus. Beyond confirming the general patterns described for the evolution of the group, this new analysis suggests that Trinomys is comprised of at least 16 evolutionary lineages, 13 of them recognized as species or subspecies, and three never before characterized. This study highlights the importance of increased sample sizes and computational species delimitation methods in uncovering hidden diversity in Trinomys.
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Affiliation(s)
- Camila Leitão Nacif
- Graduate Genetics Program, Institute of Biology, Department of Genetics, Universidade Federal do Rio de Janeiro (UFRJ) , 21941-617, Rio de Janeiro, RJ , Brazil
| | - Diogo Lisbôa Bastos
- Graduate Program in Pathology, School of Medicine, Universidade Federal Fluminense (UFF) , Niterói, RJ , Brazil
| | - Beatriz Mello
- Department of Genetics, Federal University of Rio de Janeiro , Brazil
| | - Ana Lazar
- National Museum, Department of Vertebrates, Sector of Mastozoology, Universidade Federal do Rio de Janeiro (UFRJ) , 20940-040, Rio de Janeiro, RJ , Brazil
| | - Erika Hingst-Zaher
- Museu Biológico, Instituto Butantan , Avenida Vital Brazil, 1500, São Paulo , Brazil
| | - Lena Geise
- Laboratory of Mastozoology, Department of Zoology, Institute of Biology, Universidade do Estado do Rio de Janeiro (UERJ) , Rua São Francisco Xavier 524, 220559-900, Rio de Janeiro, RJ , Brazil
| | - Cibele Rodrigues Bonvicino
- Division of Genetics, National Cancer Institute (INCA) , Rua André Cavalcanti , 37, 4° andar, 20231-050, Rio de Janeiro, RJ , Brazil
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H Tomasco I, Giorello FM, Boullosa N, Feijoo M, Lanzone C, Lessa EP. The contribution of incomplete lineage sorting and introgression to the evolutionary history of the fast-evolving genus Ctenomys (Rodentia, Ctenomyidae). Mol Phylogenet Evol 2022; 176:107593. [PMID: 35905819 DOI: 10.1016/j.ympev.2022.107593] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/28/2022] [Accepted: 07/21/2022] [Indexed: 10/31/2022]
Abstract
Incomplete lineage sorting and introgression have been increasingly recognized as important processes involved in biological differentiation. Both incomplete lineage sorting and introgression result in incongruences between gene trees and species trees, consequently causing difficulties in phylogenetic reconstruction. This is particularly the case for rapid radiations, as short internodal distances and incomplete reproductive isolation increase the likelihood of both ILS and introgression. Estimation of the relative frequency of these processes requires assessments across many genomic regions. We use transcriptomics to test for introgression and estimate the frequency of incomplete lineage sorting in a set of three closely related and geographically adjacent South American tuco-tucos species (Ctenomys), a genus comprising 64 species resulting from recent, rapid radiation. After cleaning and filtering, 5764 orthologous genes strongly support paraphyly of C. pearsoni relative to C. brasiliensis (putatively represented by the population of Villa Serrana). In line with earlier phylogenetic work, the C. pearsoni - C. brasiliensis pair is closely related to C. torquatus, whereas C. rionegrensis is more distantly related to these three nominal species. Classical Patterson's D-statistic shows significant signals of introgression from C. torquatus into C. brasiliensis. However, a 5-taxon test shows no significant results. Incomplete lineage sorting was estimated to have involved about 9% of the loci, suggesting it represents an important process in the incipient diversification of tuco-tucos.
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Affiliation(s)
- Ivanna H Tomasco
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República. Iguá 4225. Montevideo, 11400. Uruguay.
| | - Facundo M Giorello
- Facundo M. Giorello. PDU Espacio de Biología Vegetal del Noreste, Centro Universitario de Tacuarembó (CUT), Universidad de la República, Ruta 5 km 386,200, 45000, Tacuarembó, Uruguay
| | - Nicolás Boullosa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República. Iguá 4225. Montevideo, 11400. Uruguay
| | - Matías Feijoo
- Matías Feijoo. Departamento de Sistemas Agrarios y Paisajes Culturales, Centro Universitario Regional Este (CURE). Universidad de la República. Ruta 8 Km 281, Treinta y Tres, Uruguay
| | - Cecilia Lanzone
- Cecilia Lanzone. Laboratorio de Genética Evolutiva, IBS (CONICET-UNaM), FCEQyN, Félix de Azara 1553, Posadas,3300. Misiones, Argentina
| | - Enrique P Lessa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República. Iguá 4225. Montevideo, 11400. Uruguay
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Ojeda AA, Novillo A, Lanzone C, Rodríguez D, Cuevas MF, Jayat JP, Teta P, Ojeda RA, Borisenko A. DNA barcodes highlight genetic diversity patterns in rodents from lowland desert and andean areas in argentina. Mol Ecol Resour 2022; 22:2349-2362. [PMID: 35201669 DOI: 10.1111/1755-0998.13603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 02/14/2022] [Indexed: 11/27/2022]
Abstract
Rodents are an important component of South America fauna. Their high diversity has motivated researchers to continually review their taxonomy, genetic diversity, species limits, and phylogenetic relationships. We apply DNA-barcodes for assessing the taxonomic and genetic diversity in the two major lineages of South American rodents: caviomorphs and sigmodontines. We analyzed 335 COI barcodes in 34 morphologically determined species from 39 localities along central Andes and arid lands of Argentina. Neighbor Joining and Maximum Likelihood reconstruction provided clear separation between species. The Barcode Index Number and Bayesian Poisson Tree Processes were used to confirm concordance between sequence clusters and species designations by taxonomy. We found deep divergence within the Phyllotis xanthopygus species complex, with distances up to 13.0% between geographically separated lineages. Minor divergences (3.30% and 2.52%) were found within Abrothrix hirta, and Tympanoctomys barrerae, respectively, with differentiation in their genetic lineages. Also, we documented geographically separated clusters for Akodon spegazzinii and A.oenos with up to 2.3% divergence, but clustering methods failed to distinguish them as different species. Sequence results show a clear barcode gap with a mean intraspecific divergence (0.56%) vs. a minimum nearest-neighbor distance averaging (10.1%). Distances between congeneric species varied from 4.1 to 14%, with the exception of two related forms within Euneomys and the sister species Akodon spegazzinii and A. oenos. This study constitutes a substantial contribution to the global barcode reference library. It provides insights into the complex phylogeographic patterns and speciation scenarios in rodents, while highlighting areas that require in-depth taxonomic and integrative research.
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Affiliation(s)
- Agustina A Ojeda
- Grupo de Investigaciones de la Biodiversidad. Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Argentina
| | - Agustina Novillo
- Instituto de Biodiversidad Neotropical (IBN) CONICET-UNT. Facultad de Ciencias Naturales, Universidad Nacional de Tucumán, Argentina
| | - Cecilia Lanzone
- Laboratorio de Genética Evolutiva (FCEQyN, IBS, UNaM-CONICET). Posadas. Misiones, Argentina
| | - Daniela Rodríguez
- Witral-Red de Investigaciones en conservación y manejo de vida silvestre en sistemas socio-ecológicos, Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Argentina
| | - M Fernanda Cuevas
- Grupo de Investigaciones de la Biodiversidad. Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Argentina
| | - J Pablo Jayat
- Unidad Ejecutora Lillo (CONICET-Fundación M. Lillo). San Miguel de Tucumán. Tucumán, Argentina
| | - Pablo Teta
- División Mastozoología, Museo Argentino de Ciencias Naturales Bernardino Rivadavia. Buenos Aires, Argentina
| | - Ricardo A Ojeda
- Grupo de Investigaciones de la Biodiversidad. Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Argentina
| | - Alex Borisenko
- Department of Integrative Biology. College of Biological Sciences, University of Guelph, Guelph, Ontario, Canada
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Ruiz-García M, Pinedo-Castro M, Shostell JM. Comparative phylogeography among eight Neotropical wild cat species: no single evolutionary pattern. Biol J Linn Soc Lond 2022. [DOI: 10.1093/biolinnean/blab170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
The felid species of South America are thought to have arrived on the continent during the Great American Biotic Interchange (GABI) in the Pleistocene. However, molecular and palaeontological data do not agree on how this event affected speciation in felids. Here, we determine both the number of colonization events and the period when felines first migrated from North America to South America. In addition, we evaluate whether similar evolutionary events could have affected the eight Neotropical cat species in their levels of genetic diversity, spatial genetic structure and demographic changes. We analysed four concatenated mitochondrial genes of the jaguar, ocelot, margay, tigrina, pampas cat, Andean cat, puma and jaguarundi. The samples were representative of a wide distribution of these species in Central and South America. Our analysis suggests either three or four colonization events from North America to South America over the past 3 Myr, followed by subsequent speciation events and the attainment of high or very high genetic diversity levels for seven of the species. No unique evolutionary process was detected for any of the current Neotropical cat species.
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Affiliation(s)
- Manuel Ruiz-García
- Laboratorio de Genética de Poblaciones Molecular-Biología Evolutiva, Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra 7A, No. 43-82, Bogotá DC, Colombia
| | - Myreya Pinedo-Castro
- Laboratorio de Genética de Poblaciones Molecular-Biología Evolutiva, Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra 7A, No. 43-82, Bogotá DC, Colombia
| | - Joseph Mark Shostell
- Math, Science and Technology Department, University of Minnesota Crookston, 2900 University Avenue, Crookston, MN 56716, USA
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Miranda CL, Nunes MDS, Farias IP, Silva MNFD, Rossi RV, Eler E, Feldberg E, da Silva RDF, de Oliveira TG, Nagamachi CY, Pieczarka JC. A molecular and chromosomic meta‐analysis approach and its implications for the taxonomy of the genus
Makalata
Husson, 1978 (Rodentia, Echimyidae) including an amended diagnosis for
M. macrura
(Wagner, 1842). J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cleuton Lima Miranda
- Museu Paraense Emílio GoeldiUniversidade Federal do Pará Belém Brazil
- Laboratório de Evolução e Genética Animal Departamento de Genética Instituto de Ciências Biológicas Universidade Federal do Amazonas Manaus Brazil
| | - Mario da Silva Nunes
- Laboratório de Evolução e Genética Animal Departamento de Genética Instituto de Ciências Biológicas Universidade Federal do Amazonas Manaus Brazil
| | - Izeni Pires Farias
- Laboratório de Evolução e Genética Animal Departamento de Genética Instituto de Ciências Biológicas Universidade Federal do Amazonas Manaus Brazil
| | | | - Rogério Vieira Rossi
- Departamento de Biologia e Zoologia Instituto de Biociências Universidade Federal de Mato Grosso Cuiabá Brazil
| | - Eduardo Eler
- Laboratório de Genética Animal Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
| | - Eliana Feldberg
- Laboratório de Genética Animal Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
| | | | | | - Cleusa Yoshiko Nagamachi
- Laboratório de Citogenética Instituto de Ciências Biológicas Universidade Federal do Pará Belém, Pará Brazil
| | - Julio Cesar Pieczarka
- Laboratório de Citogenética Instituto de Ciências Biológicas Universidade Federal do Pará Belém, Pará Brazil
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11
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Caspar KR, Heinrich A, Mellinghaus L, Gerhardt P, Begall S. Evoked auditory potentials from African mole-rats and coruros reveal disparity in subterranean rodent hearing. J Exp Biol 2021; 224:272630. [PMID: 34704596 DOI: 10.1242/jeb.243371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/22/2021] [Indexed: 12/28/2022]
Abstract
Hearing in subterranean rodents exhibits numerous peculiarities, including low sensitivity and restriction to a narrow range of comparatively low frequencies. Past studies provided two conflicting hypotheses explaining how these derived traits evolved: structural degeneration and adaptive specialization. To further elucidate this issue, we recorded auditory brainstem responses from three species of social subterranean rodents that differ in the degree of specialization to the underground habitat: the naked mole-rat (Heterocephalus glaber) and the Mashona mole-rat (Fukomys darlingi), which represent the ancient lineage of African mole-rats (Bathyergidae), and the coruro (Spalacopus cyanus), a South American rodent (Octodontidae) that adopted a subterranean lifestyle in more recent geological time. Additionally, we measured call amplitudes of social vocalizations to study auditory vocal coupling. We found elevated auditory thresholds and severe hearing range restrictions in the African mole-rats, with hearing in naked mole-rats tending to be more sensitive than in Mashona mole-rats, in which hearing notably deteriorated with increasing age. In contrast, hearing in coruros was similar to that of epigeic rodents, with its range extending into ultrasonic frequencies. However, as in the mole-rats, the coruros' region of best hearing was located at low frequencies close to 1 kHz. We argue that the auditory sensitivity of African mole-rats, although remarkably poor, has been underestimated by recent studies, whereas data on coruros conform to previous results. Considering the available evidence, we propose to be open to both degenerative and adaptive interpretations of hearing physiology in subterranean mammals, as each may provide convincing explanations for specific auditory traits observed.
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Affiliation(s)
- Kai R Caspar
- Department of General Zoology, University of Duisburg-Essen, Universitaetsstraße 5, 45141 Essen, Germany
| | - Alexandra Heinrich
- Department of General Zoology, University of Duisburg-Essen, Universitaetsstraße 5, 45141 Essen, Germany
| | - Lea Mellinghaus
- Department of General Zoology, University of Duisburg-Essen, Universitaetsstraße 5, 45141 Essen, Germany
| | - Patricia Gerhardt
- Institute of Physiology, Faculty of Medicine, University of Duisburg-Essen, 45147 Essen, Germany
| | - Sabine Begall
- Department of General Zoology, University of Duisburg-Essen, Universitaetsstraße 5, 45141 Essen, Germany
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12
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Convergent evolution of a genomic rearrangement may explain cancer resistance in hystrico- and sciuromorpha rodents. NPJ Aging Mech Dis 2021; 7:20. [PMID: 34471123 PMCID: PMC8410860 DOI: 10.1038/s41514-021-00072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 06/21/2021] [Indexed: 11/09/2022] Open
Abstract
The rodents of hystricomorpha and sciuromorpha suborders exhibit remarkably lower incidence of cancer. The underlying genetic basis remains obscure. We report a convergent evolutionary split of human 3p21.31, a locus hosting a large number of tumour-suppressor genes (TSGs) and frequently deleted in several tumour types, in hystrico- and sciuromorphs. Analysis of 34 vertebrate genomes revealed that the synteny of 3p21.31 cluster is functionally and evolutionarily constrained in most placental mammals, but exhibit large genomic interruptions independently in hystricomorphs and sciuromorphs, owing to relaxation of underlying constraints. Hystrico- and sciuromorphs, therefore, escape from pro-tumorigenic co-deletion of several TSGs in cis. The split 3p21.31 sub-clusters gained proximity to proto-oncogene clusters from elsewhere, which might further nullify pro-tumorigenic impact of copy number variations due to co-deletion or co-amplification of genes with opposing effects. The split of 3p21.31 locus coincided with the accelerated rate of its gene expression and the body mass evolution of ancestral hystrico- and sciuromorphs. The genes near breakpoints were associated with the traits specific to hystrico- and sciuromorphs, implying adaptive significance. We conclude that the convergently evolved chromosomal interruptions of evolutionarily constrained 3p21.31 cluster might have impacted evolution of cancer resistance, body mass variation and ecological adaptations in hystrico- and sciuromorphs.
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13
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Iaeger CT, Maestri R, Fornel R. Diversification of the cranium and mandible of spiny rats of the genus Trinomys (Rodentia: Echimyidae) in an environmental and phylogenetic context. J Mammal 2021. [DOI: 10.1093/jmammal/gyaa177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Evolutionary constraints and ecological pressures influence species’ morphological diversity. The aim of this study was to explore patterns of morphological variation, to investigate the influence of environmental variables on morphological differentiation, and assess the strength of phylogenetic signal for the cranium and mandible in spiny rats of the genus Trinomys. We examined 377 crania and mandibles of all species of the genus Trinomys. We used geometric morphometric methods based on two-dimensional anatomical landmarks to describe cranium and mandible shape and size. Phylogenetic signal was tested using the K statistics and associations between morphology and environmental variables were made using a phylogenetic partial least squares analysis. We found marked differences in size and shape in the synchranium among species, especially in the segregation of T. albispinus and T. yonenagae from the other species, which in turn greatly overlapped both in size and shape spaces. We found a weak phylogenetic signal for size of the synchranium and intermediate phylogenetic signals for shape, a pattern similar to other studies. Differentiation of the synchranium shape in Trinomys was associated largely with precipitation-related variables, while the association between size and environmental variables was weak. Notably, Trinomys species inhabiting xeric environments had relatively larger tympanic bullae.
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Affiliation(s)
- Chaiane Teila Iaeger
- Programa de Pós-Graduação em Ecologia - Universidade Regional Integrada do Alto Uruguai e das Missões – URI Campus Erechim, Av. Sete de Setembro, Erechim, Rio Grande do Sul, Brazil
| | - Renan Maestri
- Programa de Pós-Graduação em Ecologia - Universidade Federal do Rio Grande do Sul – UFRGS, Av. Bento Gonçalves, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rodrigo Fornel
- Programa de Pós-Graduação em Ecologia - Universidade Regional Integrada do Alto Uruguai e das Missões – URI Campus Erechim, Av. Sete de Setembro, Erechim, Rio Grande do Sul, Brazil
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14
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Amaya JP, Cuello PA, Valentinuzzi VS, Lacey EA. Dynamic spatial overlap in a solitary subterranean rodent: the Anillaco tuco-tuco ( Ctenomys sp.). J Mammal 2021. [DOI: 10.1093/jmammal/gyab011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Abstract
Despite striking diversity in mammalian social behavior, studies of social organization have often dichotomized species by identifying them as either solitary or social (i.e., group living). This tendency has been particularly pronounced for subterranean rodents, the majority of which have long been assumed to be solitary. As a result, variation in social organization has likely been underestimated for these animals, particularly for species in which patterns of space use suggest limited or temporally dynamic opportunities for interactions among conspecifics. Here, we characterize patterns of space use in a population of tuco-tucos (Ctenomys sp.) from Anillaco, La Rioja Province, Argentina. Although these animals have been the subject of extensive research regarding circadian patterns of activity, spatial and social relationships among free-living individuals have not been documented. Analyses of radiotelemetry data from 17 individuals monitored during the breeding season (December 2015) revealed that partial overlap of individual home ranges was common, occurring between male–female as well as female–female pairs of animals. Spatial relationships, however, were dynamic, with both home range sizes and overlap changing on a daily basis. Although members of the study population did not meet the criteria typically used to identify group living in subterranean species, they were not completely solitary. Instead, the animals displayed an intermediate form of social organization characterized by persistent partial overlap of the areas occupied by different adults. These data add to the growing comparative picture of social variation in Ctenomys and suggest that further studies of these animals should contribute to improved understanding of the factors underlying differences in mammalian social systems.
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Affiliation(s)
- Juan P Amaya
- Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja (CRILAR-CONICET), CP 5301 Anillaco, La Rioja, Argentina
- IBICOPA (Instituto de Biología de la Conservación y Paleobiología), DACEFYN-CENIIT-UNLaR, CP 5300 Ciudad de La Rioja, Argentina
| | - Pablo A Cuello
- Grupo de Investigaciones de la Biodiversidad (GiB), Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA), CONICET CCT-Mendoza, CC 507, CP 5500 Mendoza, Argentina
| | - Veronica S Valentinuzzi
- Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja (CRILAR-CONICET), CP 5301 Anillaco, La Rioja, Argentina
| | - Eileen A Lacey
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
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Pereira AD, Bogoni JA, Siqueira MH, Bovendorp RS, Vidotto-Magnoni AP, Orsi ML. Sampling biases of small non-volant mammals (Mammalia: Rodentia and Didelphimorphia) surveys in Paraná state, Brazil. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2021. [DOI: 10.1080/01650521.2021.1891818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Alan Deivid Pereira
- Laboratório de Ecologia de Peixes e Invasões Biológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Juliano André Bogoni
- School of Environmental Sciences, University of East Anglia, Norwich, UK
- Laboratório de Ecologia, Manejo e Conservação de Fauna (Lemac), Departamento de Ciências Florestais, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, Brazil
| | - Micaela Heloise Siqueira
- Laboratório de Ecologia e Comportamento Animal, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Ricardo Siqueira Bovendorp
- Laboratório de Ecologia Aplicado à Conservação, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Ana Paula Vidotto-Magnoni
- Laboratório de Ecologia e Comportamento Animal, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
| | - Mário Luís Orsi
- Laboratório de Ecologia de Peixes e Invasões Biológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
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Longo MV, Díaz AO, Vassallo AI, Cohen M. Functional morphology and fiber types of the masseter muscles of two caviomorph rodents with contrasting lifestyles, Ctenomys talarum (Ctenomyidae) and Cavia aperea (Caviidae). J Morphol 2021; 282:588-599. [PMID: 33586220 DOI: 10.1002/jmor.21336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 11/05/2022]
Abstract
The aim of this work is the analysis of histochemical and morphometric properties of the masseter muscles of Ctenomys talarum and Cavia aperea. The former belongs to a subterranean rodent clade, Ctenomyidae, which has evolved a robust masticatory apparatus adapted to chisel-tooth digging and processing of abrasive grasses; C. aperea belongs to the family Caviidae, with relatively graceful jaws and mandibular musculatures, consistent with less mechanically challenging diets. Adult males were captured, immediately transported to the laboratory, and euthanized in a CO2 chamber. The musculus masseter superficialis and musculus masseter profundus on the left side of the animals were used to analyze the histochemical composition of the fiber types treated with myosin adenosine triphosphatase, succinate dehydrogenase and periodic acid Schiff. The mean fiber diameters, relative areas, and frequencies of each muscle fiber type were calculated. The mm. masseter superficialis and masseter profundus on the right side were used to measure the physiological cross-sectional area (PCSA). Based on this measurement, the internal force (F) was estimated. In the m. masseter profundus of both species and in the m. masseter superficialis of C. aperea intermediate fast oxidative-glycolytic fibers (FOGi) predominated. In the mm. masseter superficialis and masseter profundus of C. talarum the relative area of fast glycolytic (FG) fibers was greater than that of the muscles of C. aperea, whose main muscle fiber component is FOGi fibers. When corrected for body mass differences, PCSA was higher for the mm. masseter superficialis of C. talarum. This and the larger relative area of FG fibers, probably contributes to the exertion of large bite forces in C. talarum, as measured in previous studies.
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Affiliation(s)
- María Victoria Longo
- Departamento de Biología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-CONICET, Buenos Aires, Argentina
| | - Alcira Ofelia Díaz
- Departamento de Biología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-CONICET, Buenos Aires, Argentina
| | - Aldo Iván Vassallo
- Departamento de Biología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-CONICET, Buenos Aires, Argentina
| | - Mariana Cohen
- Departamento de Biología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-CONICET, Buenos Aires, Argentina
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17
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Cadenillas R, D'Elía G. The number of species of degus (genus Octodon) is currently underestimated: An appraisal of species limits and their phylogenetic relationships (Rodentia: Hystricomorpha: Octodontidae). Mol Phylogenet Evol 2021; 159:107111. [PMID: 33607277 DOI: 10.1016/j.ympev.2021.107111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/28/2021] [Accepted: 02/05/2021] [Indexed: 01/04/2023]
Abstract
As currently understood, the genus Octodon contains five species degus, lunatus, bridgesii, pacificus, and ricardojeda. Previous phylogenetic studies suggest that genus specific diversity is underestimated. In order to evaluate the taxonomic diversity of Octodon, we implemented unilocus (cytochrome-b) and multilocus (cytochrome-b + 4 nuclear genes) species delimitation methods. Octodon degus was recovered as a sister of the other species of the genus. The unilocus bGMYC and mPTP methods, based on cytochrome-b sequences, delimits 11 and 7 candidate species respectively, and both methods fail to recognize O. pacificus from O. ricardojeda. Results of the multilocus analysis (BPP) vary as a function of the dataset used. When the five genes are used 11 species are delimited, while eight species are delimited when only the nuclear genes are used. Octodon bridgesii is shown as comprising at least two species (one on the Pacific coast and the typical form found on the Andean slopes), while O. ricardojeda may comprise two species (one on the Chilean side of the Andes and the other in Argentina). Likewise, both multilocus matrices recover O. pacificus as a distinct species. This shows that species diversity of Octodon is underestimated. Remarkably, many of the delimited species based on genetic data are morphologically differentiated in cranio-dental characteristics. However, a pair of species has not achieved morphological differentiation, being cryptic species. Finally, the incongruence between mitochondrial and nuclear phylogenies suggests that processes such as incomplete lineage sorting and/or introgression have been present during the radiation of the genus.
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Affiliation(s)
- Richard Cadenillas
- Doctorado en Ciencias, Mención Ecología y Evolución, Universidad Austral de Chile, Campus Isla Teja s/n, Valdivia 5090000, Chile; Instituto de Paleontología, Universidad Nacional de Piura, Piura 20002, Peru.
| | - Guillermo D'Elía
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja s/n, Valdivia 5090000, Chile.
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18
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Pejo M, Tomasco IH. Adaptive evolution of β-globin gene in subterranean in South America octodontid rodents. Gene 2020; 772:145352. [PMID: 33359035 DOI: 10.1016/j.gene.2020.145352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 11/15/2020] [Accepted: 12/01/2020] [Indexed: 11/17/2022]
Abstract
The convergent evolution of subterranean rodents is an excellent model to study how natural selection operates and the genetic bases of these adaptations, but the study on the different taxa has been very uneven and still insufficient. In the octodontoid caviomorph rodent superfamily there are two independent lineages where they have recently evolved into totally underground lifestyles: the genera Ctenomys (tuco-tucos) and Spalacopus (coruro). The underground habitat is characterized by an hypoxic and hypercapnic atmosphere, thus gas exchange is one of the most important challenges for these animals. The invasion of the underground niche could have modified the selective regimes of proteins involved in the respiration and transport of O2 of these rodents, positively selecting mutations of higher affinity for O2. Here we examine the sequence variation in the beta globin gene in these two lineages, within a robust phylogenetic context. Using different approaches (classical and Bayesian maximum likelihood (PAML/Datamonkey) and alternatives methods (TreeSAAP)) we found at least three sites with evidence of positive selection in underground lineages, especially the basal branch that leads to the Octodontidae family and the branch that leads to the coruro, suggesting some adaptive changes to the underground life. We also found a convergence with another underground rodent, which cannot be identified by the above methods.
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Affiliation(s)
- Mariana Pejo
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Ivanna H Tomasco
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.
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19
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Tarquino-Carbonell AP, Ojeda RA, Ojeda AA. Influence of climate change on the predicted distributions of the genus Tympanoctomys (Rodentia, Hystricomorpha, Octodontidae), and their conservation implications. J Mammal 2020. [DOI: 10.1093/jmammal/gyaa087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Viscacha rats (genus Tympanoctomys Yepes, 1942) are ecologically, physiologically, and behaviorally unusual octodontid rodents endemic to the Monte and Patagonian desert biomes of Argentina. The geographic ranges of the different species of Tympanoctomys have been described in general terms but have not been associated with spatial and climate data. Within species, populations are patchily distributed and genetically distinct. We investigated the predicted distribution of Tympanoctomys and the influence of climate fluctuations on their geographic range in historical, current, and future, scenarios. Our objectives were to characterize the environmental niche of the genus, propose a paleoclimatic context for the oldest fossils, characterize the environmental niches for T. barrerae and T. kirchnerorum, and forecast potential future distributions for these taxa. Ecological niche models were constructed using occurrence records from 1941 to the present wherein we identified several precipitation and temperature variables as important predictors of the geographic distributions of the genus, and the species T. barrerae and T. kirchnerorum. Based on our models’ results, we hypothesize that the distribution of Tympanoctomys has contracted from historical to modern times. At the species level, T. kirchnerorum likely experienced the most dramatic change, suffering a large contraction of its historical distribution resulting in its limited present distribution. Given these findings, projected future climate fluctuations and global warming are expected to affect the distributions and persistence of these species.
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Affiliation(s)
- A P Tarquino-Carbonell
- Grupo de Investigaciones de la Biodiversidad, Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Avenida Ruiz Leal s/n Parque General San Martín, CC 507, CP 5500 Mendoza, Argentina
| | - Ricardo A Ojeda
- Grupo de Investigaciones de la Biodiversidad, Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Avenida Ruiz Leal s/n Parque General San Martín, CC 507, CP 5500 Mendoza, Argentina
| | - Agustina A Ojeda
- Grupo de Investigaciones de la Biodiversidad, Instituto Argentino de Investigaciones de las Zonas Áridas, CONICET, Centro de Ciencia y Técnica Mendoza, Avenida Ruiz Leal s/n Parque General San Martín, CC 507, CP 5500 Mendoza, Argentina
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20
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Campo DH, Caraballo DA, Cassini GH, Lucero SO, Teta P. Integrative taxonomy of extant maras supports the recognition of the genera Pediolagus and Dolichotis within the Dolichotinae (Rodentia, Caviidae). J Mammal 2020. [DOI: 10.1093/jmammal/gyaa038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
The subfamily Dolichotinae (Rodentia, Caviidae) includes two living species (Dolichotis patagonum and D. salinicola) of cursorial, long-legged rodents that inhabit semiarid thorn scrubs and shrublands in southern South America. Some authors consider that the morphological differences between D. patagonum and D. salinicola warrant circumscription of the latter in its own genus, Pediolagus. Based on a phylogeny and divergence times grounded on molecular data, as well as a qualitative and quantitative assessment of morphological differences, the distinction between Dolichotis and Pediolagus is equal to or greater than differences seen for other intergeneric comparisons within Cavioidea. Based on these results, we argue that the taxonomic designations of Dolichotis and Pediolagus should be retained.
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Affiliation(s)
- Denise H Campo
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Ciudad Autónoma de Buenos Aires, Argentina
| | - Diego A Caraballo
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Ciudad Autónoma de Buenos Aires, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), CONICET- Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Guillermo H Cassini
- División Mastozoología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” Ciudad Autónoma de Buenos Aires, Argentina
- Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Av. Constitución s/n, Luján, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas – CONICET, Godoy Cruz, Ciudad Autónoma de Buenos Aires, Argentina
| | - Sergio O Lucero
- División Mastozoología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas – CONICET, Godoy Cruz, Ciudad Autónoma de Buenos Aires, Argentina
| | - Pablo Teta
- División Mastozoología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas – CONICET, Godoy Cruz, Ciudad Autónoma de Buenos Aires, Argentina
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Lacey EA, O’Brien SL, Sobrero R, Ebensperger LA. Spatial relationships among free-living cururos (Spalacopus cyanus) demonstrate burrow sharing and communal nesting. J Mammal 2019. [DOI: 10.1093/jmammal/gyz117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Abstract
Spatial relationships among conspecifics can provide insights into numerous aspects of social behavior. Spatial data may be particularly important for characterizing the behavior of difficult-to-study species such as subterranean rodents, direct observations of which are challenging. To characterize the social organization of the cururo (Spalacopus cyanus), a subterranean species in the rodent family Octodontidae, we used radiotelemetry to quantify spatial relationships within populations of this species located in Parque Nacional Bosque Fray Jorge and Santuario de la Naturaleza Yerba Loca, Chile. Specifically, we sought to determine if adults in this diurnal species share burrows and subterranean nests, the two criteria typically used to identify subterranean rodents as social. Analyses of radio fixes collected during February–March 2003 revealed that cururos at both Fray Jorge and Yerba Loca shared nighttime nest sites; cluster analyses of these data identified multiple spatially distinct subsets of adults in each population. Overlap of minimum convex polygons constructed from radio fixes collected during daylight hours suggested burrow sharing by animals in both populations. Cluster analyses of overlap values revealed the same spatially distinct groups of individuals identified from analyses of nest sharing; in addition, these analyses revealed one cluster of animals in each population that was not evident from analyses of nighttime data. Collectively, these results confirm that cururos are social, with adults in both study populations sharing burrow systems and communal nests. Our findings add to the growing understanding of social organization in octodontid rodents and reveal a new system for comparative studies of the ecology and evolution of behavioral variation in burrow-dwelling mammals.
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Affiliation(s)
- Eileen A Lacey
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Shannon L O’Brien
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Raúl Sobrero
- Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - Luis A Ebensperger
- Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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Digging for the spiny rat and hutia phylogeny using a gene capture approach, with the description of a new mammal subfamily. Mol Phylogenet Evol 2019; 136:241-253. [PMID: 30885830 DOI: 10.1016/j.ympev.2019.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 02/07/2023]
Abstract
Next generation sequencing (NGS) and genomic database mining allow biologists to gather and select large molecular datasets well suited to address phylogenomics and molecular evolution questions. Here we applied this approach to a mammal family, the Echimyidae, for which generic relationships have been difficult to recover and often referred to as a star phylogeny. These South-American spiny rats represent a family of caviomorph rodents exhibiting a striking diversity of species and life history traits. Using a NGS exon capture protocol, we isolated and sequenced ca. 500 nuclear DNA exons for 35 species belonging to all major echimyid and capromyid clades. Exons were carefully selected to encompass as much diversity as possible in terms of rate of evolution, heterogeneity in the distribution of site-variation and nucleotide composition. Supermatrix inferences and coalescence-based approaches were subsequently applied to infer this family's phylogeny. The inferred topologies were the same for both approaches, and support was maximal for each node, entirely resolving the ambiguous relationships of previous analyses. Fast-evolving nuclear exons tended to yield more reliable phylogenies, as slower-evolving sequences were not informative enough to disentangle the short branches of the Echimyidae radiation. Based on this resolved phylogeny and on molecular and morphological evidence, we confirm the rank of the Caribbean hutias - formerly placed in the Capromyidae family - as Capromyinae, a clade nested within Echimyidae. We also name and define Carterodontinae, a new subfamily of Echimyidae, comprising the extant monotypic genus Carterodon from Brazil, which is the closest living relative of West Indies Capromyinae.
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Buezas GN, Becerra F, Echeverría AI, Cisilino A, Vassallo AI. Mandible strength and geometry in relation to bite force: a study in three caviomorph rodents. J Anat 2019; 234:564-575. [PMID: 30768871 DOI: 10.1111/joa.12946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2019] [Indexed: 11/30/2022] Open
Abstract
The monophyletic group Caviomorpha constitutes the most diverse rodent clade in terms of locomotion, ecology and diet. Caviomorph species show considerable variation in cranio-mandibular morphology that has been linked to the differences in toughness of dietary items and other behaviors, such as chisel-tooth digging. This work assesses the structural strength of the mandible of three caviomorph species that show remarkable differences in ecology, behavior and bite force: Chinchilla lanigera (a surface-dwelling species), Octodon degus (a semi-fossorial species) and Ctenomys talarum (a subterranean species). Finite element (FE) models of the mandibles are used to predict the stresses they withstand during incisor biting; the results are related to in vivo bite forces and interspecific variations in the mandibular geometries. The study concludes that the mandible of C. talarum is better able to withstand strong incisor bites. Its powerful adducting musculature is consistent with the notorious lateral expansion of the angular process and the masseteric crest, and the enhanced cortical bone thickness. Although it has a relatively low bite force, the mandible of O. degus also shows a good performance for mid-to-strong incisor biting, in contrast to that of C. lanigera, which exhibits, from a mechanical point of view, the worst performance. The mandibles of C. talarum and O. degus appear to be better suited to withstand stronger reaction forces from incisor biting, which is consistent with their closer phylogenetic affinity and shared digging behaviors. The contrast between the low in vivo bite force of C. lanigera and the relatively high estimations that result from the models suggests that its adductor musculature could play significant roles in functions other than incisor biting.
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Affiliation(s)
- Guido N Buezas
- Laboratorio de Morfología Funcional y Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
| | - Federico Becerra
- Laboratorio de Morfología Funcional y Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
| | - Alejandra I Echeverría
- Laboratorio de Morfología Funcional y Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
| | - Adrián Cisilino
- División Mecánica de Materiales, Instituto de Investigaciones en Ciencia y Tecnolgía de Materiales (INTEMA), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
| | - Aldo I Vassallo
- Laboratorio de Morfología Funcional y Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
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24
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Tavares WC, Vozniak JH, Pessôa LM. Evolution of Appendicular Specializations for Fossoriality in Euryzygomatomyine Spiny Rats across Different Brazilian Biomes (Echimyidae, Hystricognathi, Rodentia). J MAMM EVOL 2019. [DOI: 10.1007/s10914-019-09459-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Mclean BS, Bell KC, Allen JM, Helgen KM, Cook JA. Impacts of Inference Method and Data set Filtering on Phylogenomic Resolution in a Rapid Radiation of Ground Squirrels (Xerinae: Marmotini). Syst Biol 2018; 68:298-316. [DOI: 10.1093/sysbio/syy064] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 09/12/2018] [Indexed: 12/20/2022] Open
Affiliation(s)
- Bryan S Mclean
- Department of Biology and Museum of Southwestern Biology, 1 University of New Mexico, MSC03-2020, Albuquerque, NM 87131, USA
- Florida Museum of Natural History, University of Florida, 1659 Museum Road, Gainesville, FL 32611, USA
| | - Kayce C Bell
- Department of Biology and Museum of Southwestern Biology, 1 University of New Mexico, MSC03-2020, Albuquerque, NM 87131, USA
- Department of Invertebrate Zoology, Smithsonian Institution National Museum of Natural History, P.O. Box 37012, MRC 163, Washington, DC 20013-7012, USA
| | - Julie M Allen
- Department of Biology, University of Nevada, 1664 N. Virginia Street, Reno, NV 89557, USA
| | - Kristofer M Helgen
- Department of Ecology and Evolutionary Biology, School of Biological Sciences, University of Adelaide, North Terrace, Adelaide SA 5005, Australia
| | - Joseph A Cook
- Department of Biology and Museum of Southwestern Biology, 1 University of New Mexico, MSC03-2020, Albuquerque, NM 87131, USA
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26
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Lineages of Tuco-Tucos (Ctenomyidae: Rodentia) from Midwest and Northern Brazil: Late Irradiations of Subterranean Rodents Towards the Amazon Forest. J MAMM EVOL 2018. [DOI: 10.1007/s10914-018-9450-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Affiliation(s)
- M Julieta Pérez
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), PCMA (Programa de Conservación de los Murciélagos de Argentina), CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Facultad de Ciencias Naturales e Instituto Miguel Lillo-Universidad Nacional de Tucumán, Miguel Lillo, Tucumán, Argentina
| | - M Mónica Díaz
- Fundación Miguel Lillo, Sección Mastozoología, Tucumán, Argentina
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28
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Araújo NP, Dias CAR, Stumpp R, Svartman M. Cytogenetic analyses in Trinomys (Echimyidae, Rodentia), with description of new karyotypes. PeerJ 2018; 6:e5316. [PMID: 30083457 PMCID: PMC6074804 DOI: 10.7717/peerj.5316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/05/2018] [Indexed: 11/24/2022] Open
Abstract
Trinomys Thomas (1921) is a terrestrial genus of spiny rats endemic to the Brazilian areas of Atlantic Forest and the transitional areas of Cerrado and Caatinga. Although most species have been already karyotyped, the available cytogenetic information is mostly restricted to diploid and fundamental numbers. We analyzed the chromosomes of two Trinomys species: Trinomys moojeni (2n = 56, FN = 106) and Trinomys setosus setosus (2n = 56, FN = 106 and 2n = 56, FN = 108). Our analyses included GTG- and CBG-banding, silver-staining of the nucleolar organizer regions, and chromosome mapping of telomeres and 45S rDNA by fluorescent in situ hybridization (FISH). Comparative GTG- and CBG-banding suggested that the interspecific variation may be due to rearrangements such as pericentric inversions, centromere repositioning, and heterochromatin variation. We report two new karyotypes for T. s. setosus and describe for the first time the banding patterns of the two Trinomys species.
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Affiliation(s)
- Naiara Pereira Araújo
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Cayo Augusto Rocha Dias
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas, Belo Horizonte, Minas Gerais, Brazil
| | - Rodolfo Stumpp
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marta Svartman
- Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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29
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Evans BJ, Upham NS, Golding GB, Ojeda RA, Ojeda AA. Evolution of the Largest Mammalian Genome. Genome Biol Evol 2018; 9:1711-1724. [PMID: 28854639 PMCID: PMC5569995 DOI: 10.1093/gbe/evx113] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2017] [Indexed: 12/31/2022] Open
Abstract
The genome of the red vizcacha rat (Rodentia, Octodontidae, Tympanoctomys barrerae) is the largest of all mammals, and about double the size of their close relative, the mountain vizcacha rat Octomys mimax, even though the lineages that gave rise to these species diverged from each other only about 5 Ma. The mechanism for this rapid genome expansion is controversial, and hypothesized to be a consequence of whole genome duplication or accumulation of repetitive elements. To test these alternative but nonexclusive hypotheses, we gathered and evaluated evidence from whole transcriptome and whole genome sequences of T. barrerae and O. mimax. We recovered support for genome expansion due to accumulation of a diverse assemblage of repetitive elements, which represent about one half and one fifth of the genomes of T. barrerae and O. mimax, respectively, but we found no strong signal of whole genome duplication. In both species, repetitive sequences were rare in transcribed regions as compared with the rest of the genome, and mostly had no close match to annotated repetitive sequences from other rodents. These findings raise new questions about the genomic dynamics of these repetitive elements, their connection to widespread chromosomal fissions that occurred in the T. barrerae ancestor, and their fitness effects—including during the evolution of hypersaline dietary tolerance in T. barrerae.
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Affiliation(s)
- Ben J Evans
- Biology Department, McMaster University, Hamilton, Ontario, Canada
| | - Nathan S Upham
- Biology Department, McMaster University, Hamilton, Ontario, Canada.,Field Museum of Natural History, Chicago, IL.,Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT
| | | | - Ricardo A Ojeda
- Grupo de Investigaciones de la Biodiversidad (GIB), Instituto Argentino de Investigaciones de Zonas Áridas (IADIZA), Mendoza, Argentina
| | - Agustina A Ojeda
- Grupo de Investigaciones de la Biodiversidad (GIB), Instituto Argentino de Investigaciones de Zonas Áridas (IADIZA), Mendoza, Argentina
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30
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Tavares WC, Pessôa LM, Seuánez HN. Changes in Ontogenetic Allometry and their Role in the Emergence of Cranial Morphology in Fossorial Spiny Rats (Echimyidae, Hystricomorpha, Rodentia). J MAMM EVOL 2018. [DOI: 10.1007/s10914-018-9433-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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31
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Fabio-Braga AP, Klein W. Temperature and circadian effects on metabolic rate of South American echimyid rodents, Trinomys setosus and Clyomys bishopi (Rodentia: Echimyidae). ZOOLOGIA 2018. [DOI: 10.3897/zoologia.35.e24572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Basal metabolic rate (BMR) represents the lowest level of metabolic activity capable to sustain homeostasis in an endotherm and is an important tool to compare metabolic rates of different species. Echimyidae is the most specious family within caviomorph rodents, however, little is known about the biology of its species, such as Trinomys setosus (Desmarest, 1817) and Clyomys bishopi (Ávila-Pires & Wutke, 1981), a ground and an underground dwelling echimyid, respectively. The ambient temperature and circadian effects on metabolic rate were evaluated through closed-system respirometry for these two species, as well as the circadian effects on CO2 production and respiratory exchange ratio (RER). Trinomys setosus and C. bishopi showed the lowest metabolic rates (0.56 ± 0.02 mLO2.h-1.g-1 and 0.53 ± 0.03 mLO2.h-1.g-1, respectively) at 32 °C and during the light phase. Under laboratory conditions, T. setosus showed metabolic rate variation compatible with nocturnal activity, whereas C. bishopi activity cycle remains unclear. Both species showed BMR lower than expected by allometric regressions for rodents.
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32
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Tavares WC, Abi-Rezik P, Seuánez HN. Historical and ecological influence in the evolutionary diversification of external morphology of neotropical spiny rats (Echimyidae, Rodentia). J ZOOL SYST EVOL RES 2018. [DOI: 10.1111/jzs.12215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- William Corrêa Tavares
- Laboratório de Mastozoologia; Departamento de Zoologia; CCS; Rio de Janeiro Brazil
- Departamento de Genética; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
- Programa de Genética; Instituto Nacional de Câncer; Rio de Janeiro Brazil
| | - Pedro Abi-Rezik
- Laboratório de Mastozoologia; Departamento de Zoologia; CCS; Rio de Janeiro Brazil
| | - Hector N. Seuánez
- Departamento de Genética; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
- Programa de Genética; Instituto Nacional de Câncer; Rio de Janeiro Brazil
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33
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Sánchez MS, Giannini NP. Trophic structure of frugivorous bats in the Neotropics: emergent patterns in evolutionary history. Mamm Rev 2018. [DOI: 10.1111/mam.12116] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mariano Sebastián Sánchez
- Instituto de Biología Subtropical - nodo Posadas; Consejo Nacional de Investigaciones Científicas y Técnicas and Laboratorio de Genética Evolutiva; Facultad de Ciencias Exactas, Químicas y Naturales; Universidad Nacional de Misiones; Félix de Azara 1552 N3300LQH Posadas Misiones Argentina
| | - Norberto Pedro Giannini
- Unidad Ejecutora Lillo; Centro Científico Tecnológico Tucumán; Consejo Nacional de Investigaciones Científicas y Técnicas; Miguel Lillo 255 C.P. 4000 Tucumán Argentina
- Cátedra de Biogeografía; Facultad de Ciencias Naturales e Instituto Miguel Lillo; Universidad Nacional de Tucumán; Miguel Lillo 205 C.P. 4000 Tucumán Argentina
- Department of Mammalogy; American Museum of Natural History; Central Park West at 79th Street New York 10024 NY USA
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34
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Perez MJ, Barquez RM, Diaz MM. Morphology of the limbs in the semi-fossorial desert rodent species of Tympanoctomys (Octodontidae, Rodentia). Zookeys 2017:77-96. [PMID: 29118644 PMCID: PMC5674180 DOI: 10.3897/zookeys.710.14033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/26/2017] [Indexed: 11/26/2022] Open
Abstract
Here, a detailed description of the forelimbs and hindlimbs of all living species of the genus Tympanoctomys are presented. These rodents, highly adapted to desert environments, are semi-fossorial with capacity to move on the surface as well as to build burrows. The shape, structure, and size of the limbs are described. Contrary to what was expected for scratch digging semi-fossorial species, Tympanoctomys have slender humerus, radius and ulna; with narrow epicondyles of the humerus and short olecranon of the ulna with poorly developed processes. Following our descriptions, no intrageneric morphological variation regarding to the configuration of the limbs was detected, probably due to phylogenetic proximity, and not related to specific variations in response to different use of substrates or habits. The obtained results constitute a source of previously unpublished information as well as an important base for future analysis in different studies, such as morphometric, morpho-functional, or phylogenetic researches.
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Affiliation(s)
- M Julieta Perez
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), PCMA (Programa de Conservacion de los Murcielagos de Argentina), CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas), Facultad de Ciencias Naturales e IML-Universidad Nacional de Tucuman. Miguel Lillo 251, 4000. Tucuman, Argentina
| | - Ruben M Barquez
- Fundacion Miguel Lillo. Miguel Lillo 205, 4000. Tucuman, Argentina
| | - M Monica Diaz
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), PCMA (Programa de Conservacion de los Murcielagos de Argentina), CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas), Facultad de Ciencias Naturales e IML-Universidad Nacional de Tucuman. Miguel Lillo 251, 4000. Tucuman, Argentina.,Fundacion Miguel Lillo. Miguel Lillo 205, 4000. Tucuman, Argentina
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35
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Tomasco IH, Boullosa N, Tandonnet S, Hoffmann FG, Lessa EP. Nucleotide sequence and results of test of adaptive evolution in the α-globin gene of octodontoid rodents. Data Brief 2017; 15:517-521. [PMID: 29085872 PMCID: PMC5650648 DOI: 10.1016/j.dib.2017.09.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/04/2017] [Accepted: 09/12/2017] [Indexed: 11/30/2022] Open
Abstract
The data presented in this article are related to the research article entitled “Molecular adaptive convergence in the α-globin gene in subterranean octodontid rodents” (Tomasco et al., 2017) [1]. This article shows the nucleotide sequences of α-globin subunit gene of hemoglobin of several South American caviomorph rodents, including subterranean and fossorial species. These sequences are deposited in Genbank, with accession numbers ranging from MF169881 to MF169898. Of a total of 429 nucleotides analyzed (143 codons), 100 variable sites and 43 amino acid replacements were reported. In this article we also show the results of TreeSaap (Woolley et al., 2003) [2] and MEME (Murrell et al., 2012) [3], that identified some replacement changes as interesting for future studies of adaptive evolution in this large rodent radiation.
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Affiliation(s)
- I H Tomasco
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - N Boullosa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | | | - F G Hoffmann
- Department of Biochemistry and Molecular Biology, Mississippi State University, MS, USA.,Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, MS, USA
| | - E P Lessa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
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36
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Barreto WTG, Viana LA, Santos FM, de Oliveira Porfírio GE, Perdomo AC, da Silva AR, de Sousa KCM, de Oliveira MAC, Herrera HM, de Andrade GB. New species of Eimeria (Apicomplexa: Eimeriidae) from Thrichomys fosteri and Clyomys laticeps (Rodentia: Echimyidae) of the Brazilian Pantanal. Parasitol Res 2017; 116:2941-2956. [PMID: 28871424 DOI: 10.1007/s00436-017-5602-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 08/24/2017] [Indexed: 11/27/2022]
Abstract
The echimyid rodents Thrichomys fosteri and Clyomys laticeps are among the most commonly recorded small mammals in the Pantanal wetland of Brazil. These species play important ecological roles since they are the basis of the food chain of some predators and are parasitized by some pathogens. Knowledge of the eimerians that parasitize echimyid rodents in Brazil is absent, and only one report is available for South America. We therefore investigated parasitism by coccidians in the echimyids T. fosteri and C. laticeps in the Pantanal. Using morphological and morphometric features and associated statistical analyses, we describe five new eimerian species parasitizing T. fosteri (Eimeria nhecolandensis n. sp., Eimeria jansenae n. sp., and Eimeria fosteri n. sp.) and C. laticeps (E. nhecolandensis n. sp., Eimeria corumbaensis n. sp., and Eimeria laticeps n. sp.) in different types of infection associations. We document the developmental forms in the tissues, and describe lesions in the enteric tract of some infected animals. We also discuss some approaches regarding epidemiological and ecological data. Our results demonstrate that echimyid rodents in the Brazilian Pantanal are important hosts for the maintenance of enteric coccidia. Moreover, in some circumstances, this parasitism may threaten the health of the hosts.
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Affiliation(s)
- Wanessa Teixeira Gomes Barreto
- Programa de Pós-Graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Lúcio André Viana
- Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, UNIFAP, Macapá, Amapá, Brazil
| | - Filipe Martins Santos
- Programa de Pós-Graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | | | | | | | | | | | - Heitor Miraglia Herrera
- Programa de Pós-Graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil.
| | - Gisele Braziliano de Andrade
- Programa de Pós-Graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
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37
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Upham NS, Borroto-Páez R. Molecular phylogeography of endangered Cuban hutias within the Caribbean radiation of capromyid rodents. J Mammal 2017. [DOI: 10.1093/jmammal/gyx077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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38
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Tomasco IH, Boullosa N, Hoffmann FG, Lessa EP. Molecular adaptive convergence in the α-globin gene in subterranean octodontid rodents. Gene 2017; 628:275-280. [PMID: 28735726 DOI: 10.1016/j.gene.2017.07.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/21/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
Abstract
Tuco-tucos (Ctenomys) and related coruros (Spalacopus) are South American subterranean rodents. An energetically demanding lifestyle within the hypoxic/hypercapnic underground atmosphere may change the selective regime on genes involved in O2 transport in blood. In addition, some species of tuco-tucos may be found at high altitude, thus facing additional reductions in changes O2 availabily. We examined sequence variation in the alpha globin subunit gene of hemoglobine in these lineages, within a robust phylogenetic context. Using different approaches (classical and Bayesian maximum likelihood (PAML/Datamonkey) and alternatives methods (TreeSAAP)) we found at least 2 sites with evidence of positive selection in the basal branch of Octodontidae, but not in tuco-tucos. These results suggest some adaptive changes associated to fossoriality, but not strictly to life underground.
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Affiliation(s)
- Ivanna H Tomasco
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11400, Uruguay.
| | - Nicolás Boullosa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11400, Uruguay.
| | - Federico G Hoffmann
- Department of Biochemistry and Molecular Biology, Mississippi State University, MS, USA; Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, MS, USA.
| | - Enrique P Lessa
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11400, Uruguay.
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39
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Buezas G, Becerra F, Vassallo A. Cranial suture complexity in caviomorph rodents (Rodentia; Ctenohystrica). J Morphol 2017; 278:1125-1136. [DOI: 10.1002/jmor.20699] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 03/15/2017] [Accepted: 04/19/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Guido Buezas
- Departamento de Biología; IIMyC, Universidad Nacional de Mar del Plata; Mar del Plata Argentina
| | - Federico Becerra
- Departamento de Biología; IIMyC, Universidad Nacional de Mar del Plata; Mar del Plata Argentina
- Max Planck Weizmann Center for Integrative Archaeology and Anthropology, Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
| | - Aldo Vassallo
- Departamento de Biología; IIMyC, Universidad Nacional de Mar del Plata; Mar del Plata Argentina
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40
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Álvarez A, Arévalo RLM, Verzi DH. Diversification patterns and size evolution in caviomorph rodents. Biol J Linn Soc Lond 2017. [DOI: 10.1093/biolinnean/blx026] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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The karyotype of Trinomys paratus (Rodentia: Echimyidae) with comments about its phylogenetic relationship. MAMMALIA 2017. [DOI: 10.1515/mammalia-2016-0131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The spiny rat Trinomys, with ten endemic species in eastern Brazil, has a complex taxonomy. We carried out a revision of the karyotypes of Trinomys, described for the first time the karyotype of Trinomys paratus and performed the first phylogenetic analysis including all Trinomys species based on the mitochondrial cytochrome b gene. The T. paratus karyotype showed diploid number of 58 and fundamental autosomal number of 112. Diploid and fundamental autosomal numbers (FNa), and chromosomes’ morphology, are similar to those described for Trinomys eliasi. T. paratus appears as sister taxa of T. eliasi; in turn, this clade was recovered as the sister group of Trinomys setosus, as previously reported, confirming that sister species of Trinomys has conserved karyotypes, and suggesting that karyological evolution in this genus could be slower than species differentiation.
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Luna F, Naya H, Naya DE. Understanding evolutionary variation in basal metabolic rate: An analysis in subterranean rodents. Comp Biochem Physiol A Mol Integr Physiol 2017; 206:87-94. [PMID: 28179141 DOI: 10.1016/j.cbpa.2017.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 12/09/2016] [Accepted: 02/02/2017] [Indexed: 11/26/2022]
Abstract
Understanding how evolutionary variation in energetic metabolism arises is central to several theories in animal biology. Basal metabolic rate (BMR) -i.e., the minimum rate of energy necessary to maintain thermal homeostasis in endotherms- is a highly informative measure to increase our understanding, because it is determined under highly standardized conditions. In this study we evaluate the relationship between taxa- and mass-independent (residual) BMR and ten environmental factors for 34 subterranean rodent species. Both conventional and phylogenetically informed analyses indicate that ambient temperature is the major determinant of residual BMR, with both variables inversely correlated. By contrast, other environmental factors that have been shown to affect residual BMR in endotherms, such as habitat productivity and rainfall, were not significant predictors of residual BMR in this group of species. Then, the results for subterranean rodents appear to support a central prediction of the obligatory heat model (OHM), which is a mechanistic model aimed to explain the evolution of residual BMR. Specifically, OHM proposes that during the colonization of colder environments, individuals with greater masses of metabolically expensive tissues (and thus with greater BMR) are favored by natural selection due to the link between greater masses of metabolically expensive tissues and physiological capacities. This way, natural selection should establishes a negative correlation between ambient temperature and both internal organ size and residual BMR.
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Affiliation(s)
- Facundo Luna
- Laboratorio de Ecología Fisiológica y del Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Hugo Naya
- Unidad de Bioinformática, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Daniel E Naya
- Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
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Selective binocular vision loss in two subterranean caviomorph rodents: Spalacopus cyanus and Ctenomys talarum. Sci Rep 2017; 7:41704. [PMID: 28150809 PMCID: PMC5288697 DOI: 10.1038/srep41704] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/19/2016] [Indexed: 11/09/2022] Open
Abstract
To what extent can the mammalian visual system be shaped by visual behavior? Here we analyze the shape of the visual fields, the densities and distribution of cells in the retinal ganglion-cell layer and the organization of the visual projections in two species of facultative non-strictly subterranean rodents, Spalacopus cyanus and Ctenomys talarum, aiming to compare these traits with those of phylogenetically closely related species possessing contrasting diurnal/nocturnal visual habits. S. cyanus shows a definite zone of frontal binocular overlap and a corresponding area centralis, but a highly reduced amount of ipsilateral retinal projections. The situation in C. talarum is more extreme as it lacks of a fronto-ventral area of binocular superposition, has no recognizable area centralis and shows no ipsilateral retinal projections except to the suprachiasmatic nucleus. In both species, the extension of the monocular visual field and of the dorsal region of binocular overlap as well as the whole set of contralateral visual projections, appear well-developed. We conclude that these subterranean rodents exhibit, paradoxically, diurnal instead of nocturnal visual specializations, but at the same time suffer a specific regression of the anatomical substrate for stereopsis. We discuss these findings in light of the visual ecology of subterranean lifestyles.
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Vianna JA, Noll D, Moreno L, Silva C, Muñoz-Leal S, Najle M, González-Acuña D. Record of an alleged extinct rodent: molecular analyses of the endemicOctodon pacificusfrom Chile. J Mammal 2017. [DOI: 10.1093/jmammal/gyw193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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The complete mitochondrial genomes of two Atlantic spiny rats, genus Trinomys (Rodentia: Echimyidae), from low-pass shotgun sequencing. GENE REPORTS 2016. [DOI: 10.1016/j.genrep.2016.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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46
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Filling phylogenetic gaps and the biogeographic relationships of the Octodontidae (Mammalia: Hystricognathi). Mol Phylogenet Evol 2016; 105:96-101. [DOI: 10.1016/j.ympev.2016.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 08/03/2016] [Accepted: 08/23/2016] [Indexed: 11/18/2022]
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Orr ME, Garbarino VR, Salinas A, Buffenstein R. Extended Postnatal Brain Development in the Longest-Lived Rodent: Prolonged Maintenance of Neotenous Traits in the Naked Mole-Rat Brain. Front Neurosci 2016; 10:504. [PMID: 27877105 PMCID: PMC5099538 DOI: 10.3389/fnins.2016.00504] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/21/2016] [Indexed: 11/24/2022] Open
Abstract
The naked mole-rat (NMR) is the longest-lived rodent with a maximum lifespan >31 years. Intriguingly, fully-grown naked mole-rats (NMRs) exhibit many traits typical of neonatal rodents. However, little is known about NMR growth and maturation, and we question whether sustained neotenous features when compared to mice, reflect an extended developmental period, commensurate with their exceptionally long life. We tracked development from birth to 3 years of age in the slowest maturing organ, the brain, by measuring mass, neural stem cell proliferation, axonal, and dendritic maturation, synaptogenesis and myelination. NMR brain maturation was compared to data from similar sized rodents, mice, and to that of long-lived mammals, humans, and non-human primates. We found that at birth, NMR brains are significantly more developed than mice, and rather are more similar to those of newborn primates, with clearly laminated hippocampi and myelinated white matter tracts. Despite this more mature brain at birth than mice, postnatal NMR brain maturation occurs at a far slower rate than mice, taking four-times longer than required for mice to fully complete brain development. At 4 months of age, NMR brains reach 90% of adult size with stable neuronal cytostructural protein expression whereas myelin protein expression does not plateau until 9 months of age in NMRs, and synaptic protein expression continues to change throughout the first 3 years of life. Intriguingly, NMR axonal composition is more similar to humans than mice whereby NMRs maintain expression of three-repeat (3R) tau even after brain growth is complete; mice experience an abrupt downregulation of 3R tau by postnatal day 8 which continues to diminish through 6 weeks of age. We have identified key ages in NMR cerebral development and suggest that the long-lived NMR may provide neurobiologists an exceptional model to study brain developmental processes that are compressed in common short-lived laboratory animal models.
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Affiliation(s)
- Miranda E Orr
- Department of Physiology, University of Texas Health Science Center at San AntonioSan Antonio, TX, USA; The Barshop Institute for Longevity, Aging Studies, University of Texas Health Science Center at San AntonioSan Antonio, TX, USA
| | - Valentina R Garbarino
- Department of Physiology, University of Texas Health Science Center at San Antonio San Antonio, TX, USA
| | - Angelica Salinas
- Department of Physiology, University of Texas Health Science Center at San Antonio San Antonio, TX, USA
| | - Rochelle Buffenstein
- Department of Physiology, University of Texas Health Science Center at San AntonioSan Antonio, TX, USA; The Barshop Institute for Longevity, Aging Studies, University of Texas Health Science Center at San AntonioSan Antonio, TX, USA; Calico Life Sciences LLCSouth San Francisco, CA, USA
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48
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Tavares WC, Pessôa LM, Seuánez HN. Phylogenetic and size constrains on cranial ontogenetic allometry of spiny rats (Echimyidae, Rodentia). J Evol Biol 2016; 29:1752-65. [DOI: 10.1111/jeb.12905] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/08/2016] [Accepted: 05/23/2016] [Indexed: 11/30/2022]
Affiliation(s)
- W. C. Tavares
- Departamento de Zoologia; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
- Programa de Genética; Instituto Nacional de Câncer; Rio de Janeiro Brazil
- Departamento de Genética; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - L. M. Pessôa
- Departamento de Zoologia; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - H. N. Seuánez
- Programa de Genética; Instituto Nacional de Câncer; Rio de Janeiro Brazil
- Departamento de Genética; CCS; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
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FERREIRA THAISM, OLIVARES ADRIANAITATI, KERBER LEONARDO, DUTRA RODRIGOP, AVILLA LEONARDOS. Late Pleistocene echimyid rodents (Rodentia, Hystricognathi) from northern Brazil. ACTA ACUST UNITED AC 2016; 88:829-45. [DOI: 10.1590/0001-3765201620150288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/29/2015] [Indexed: 11/22/2022]
Abstract
ABSTRACT Echimyidae (spiny rats, tree rats and the coypu) is the most diverse family of extant South American hystricognath rodents (caviomorphs). Today, they live in tropical forests (Amazonian, coastal and Andean forests), occasionally in more open xeric habitats in the Cerrado and Caatinga of northern South America, and open areas across the southern portion of the continent (Myocastor). The Quaternary fossil record of this family remains poorly studied. Here, we describe the fossil echimyids found in karst deposits from southern Tocantins, northern Brazil. The analyzed specimens are assigned to Thrichomys sp., Makalata cf. didelphoides and Proechimys sp. This is the first time that a fossil of Makalata is reported. The Pleistocene record of echimyids from this area is represented by fragmentary remains, which hinders their determination at specific levels. The data reported here contributes to the understanding of the ancient diversity of rodents of this region, evidenced until now in other groups, such as the artiodactyls, cingulates, carnivores, marsupials, and squamate reptiles.
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Affiliation(s)
- THAIS M.F. FERREIRA
- Universidade Federal do Rio Grande do Sul, Brazil; Fundação Zoobotânica do Rio Grande do Sul, Brasil
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50
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Tavares WC, Pessôa LM, Seuánez HN. Stability and acceleration of phenotypic evolution in spiny rats (Trinomys, Echimyidae) across different environments. Zool J Linn Soc 2016. [DOI: 10.1111/zoj.12406] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- William Corrêa Tavares
- Programa de Pós-Graduação em Genética; CCS; Universidade Federal do Rio de Janeiro; Avenida Carlos Chagas Filho; S/N, Cidade Universitária; Rio de Janeiro 21941-590 RJ Brazil
- Departamento de Zoologia; CCS; Universidade Federal do Rio de Janeiro; Avenida Carlos Chagas Filho; S/N, Cidade Universitária Rio de Janeiro 21941-590, RJ Brazil
- Programa de Genética; Instituto Nacional de Câncer; Rua André Cavalcanti 37 Rio de Janeiro 20231-050, RJ Brazil
| | - Leila Maria Pessôa
- Departamento de Zoologia; CCS; Universidade Federal do Rio de Janeiro; Avenida Carlos Chagas Filho; S/N, Cidade Universitária Rio de Janeiro 21941-590, RJ Brazil
| | - Hector N. Seuánez
- Programa de Pós-Graduação em Genética; CCS; Universidade Federal do Rio de Janeiro; Avenida Carlos Chagas Filho; S/N, Cidade Universitária; Rio de Janeiro 21941-590 RJ Brazil
- Programa de Genética; Instituto Nacional de Câncer; Rua André Cavalcanti 37 Rio de Janeiro 20231-050, RJ Brazil
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