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Rosset SD, Baldo D, Borteiro C, Kolenc F, Cazzaniga NJ, Basso NG. Calling Frogs by Their Name: Long-Lasting Misidentification of Tetraploid Frogs of the Genus Odontophrynus (Anura: Odontophrynidae). HERPETOLOGICAL MONOGRAPHS 2022. [DOI: 10.1655/herpmonographs-d-21-00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Sergio D. Rosset
- Sección Herpetología, División Zoología Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Avenida 122 y 60, La Plata, 1900, Buenos Aires, Argentina
| | - Diego Baldo
- Laboratorio de Genética Evolutiva, Instituto de Biología Subtropical “Claudio Juan Bidau” (CONICET-UNaM), Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Félix de Azara 1552, Posadas, N3300LQF, Misiones, Argentina
| | - Claudio Borteiro
- Sección Herpetología, Museo Nacional de Historia Natural, Miguelete 1825, Montevideo, 11800, Uruguay
| | - Francisco Kolenc
- Sección Herpetología, Museo Nacional de Historia Natural, Miguelete 1825, Montevideo, 11800, Uruguay
| | - Néstor J. Cazzaniga
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, Bahía Blanca, 8000, Buenos Aires, Argentina
| | - Néstor G. Basso
- Instituto de Diversidad y Evolución Austral (IDEAus-CONICET), Blvd. Alte. Brown 2915, Puerto Madryn, U9120ACF, Chubut, Argentina
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Cianciarullo AM, Bonini-Domingos CR, Vizotto LD, Kobashi LS, Beçak ML, Beçak W. Whole-genome duplication and hemoglobin differentiation traits between allopatric populations of Brazilian Odontophrynus americanus species complex (Amphibia, Anura). Genet Mol Biol 2019; 42:436-444. [PMID: 31259358 PMCID: PMC6726162 DOI: 10.1590/1678-4685-gmb-2017-0260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 07/25/2018] [Indexed: 11/21/2022] Open
Abstract
Two allopatric populations of Brazilian diploid and tetraploid
Odontophrynus americanus species complex, both from São
Paulo state, had their blood hemoglobin biochemically analyzed. In addition,
these specimens were cytogenetically characterized. Biochemical characterization
of hemoglobin expression showed a distinct banding pattern between the
allopatric specimens. Besides this, two distinct phenotypes, not linked to
ploidy, sex, or age, were observed in adult animals of both populations.
Phenotype A exhibits dark-colored body with small papillae, ogival-shaped jaw
with reduced interpupillary distance and shorter hind limbs. Phenotype B shows
yellowish-colored body with larger papillae, arch-shaped jaw with broader
interpupillary distance and longer hind limbs. Intermediate phenotypes were also
found. Considering the geographical isolation of both populations, differences
in chromosomal secondary constrictions and distinct hemoglobins banding
patterns, these data indicate that 2n and 4n populations represent cryptic
species in the O. americanus species complex. The observed
phenotypic diversity can be interpreted as population genetic variability.
Eventually future data may indicate a probable beginning of speciation in these
Brazilian frogs. Such inter- and intrapopulational differentiation/speciation
process indicates that O. americanus species complex taxonomy
deserves further evaluation by genomics and metabarcoding communities, also
considering the pattern of hemoglobin expression, in South American frogs.
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Affiliation(s)
| | - Claudia R Bonini-Domingos
- Department of Biology, Laboratory of Hemoglobins and Genetics of the Hematological Diseases, Universidade Estadual Paulista "Julio de Mesquita Filho (UNESP), São José do Rio Preto, SP, Brazil
| | - Luiz D Vizotto
- Department of Zoology, Universidade Estadual Paulista "Julio de Mesquita Filho (UNESP), São José do Rio Preto, SP, Brazil
| | - Leonardo S Kobashi
- Laboratory of Ecology and Evolution, Instituto Butantan, São Paulo, SP, Brazil.,Universidade Paulista (UNIP) São Paulo, SP, Brazil
| | | | - Willy Beçak
- Laboratory of Genetics, Instituto Butantan, São Paulo, SP, Brazil
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Cimino MC. EGG‐PRODUCTION, POLYPLOIDIZATION AND EVOLUTION IN A DIPLOID ALL‐FEMALE FISH OF THE GENUS
POECILIOPSIS. Evolution 2017; 26:294-306. [DOI: 10.1111/j.1558-5646.1972.tb00195.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/1971] [Indexed: 11/29/2022]
Affiliation(s)
- Michael C. Cimino
- Ecology Section Biological Sciences Group The University of Connecticut Storrs Connecticut 06268
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Abstract
This review summarizes the current status of the known extant genuine polyploid anuran and urodelan species, as well as spontaneously originated and/or experimentally produced amphibian polyploids. The mechanisms by which polyploids can originate, the meiotic pairing configurations, the diploidization processes operating in polyploid genomes, the phenomenon of hybridogenesis, and the relationship between polyploidization and sex chromosome evolution are discussed. The polyploid systems in some important amphibian taxa are described in more detail.
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Faivovich J, Nicoli L, Blotto BL, Pereyra MO, Baldo D, Barrionuevo JS, Fabrezi M, Wild ER, Haddad CF. Big, Bad, and Beautiful: Phylogenetic Relationships of the Horned Frogs (Anura: Ceratophryidae). SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2014. [DOI: 10.2994/sajh-d-14-00032.1] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Julián Faivovich
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—Consejo Nacional de Investigaciones Científicas y Técnicas, Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Laura Nicoli
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—Consejo Nacional de Investigaciones Científicas y Técnicas, Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Boris L. Blotto
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—Consejo Nacional de Investigaciones Científicas y Técnicas, Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Martín O. Pereyra
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—Consejo Nacional de Investigaciones Científicas y Técnicas, Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Diego Baldo
- Laboratorio de Genética Evolutiva, Instituto de Biología Subtropical (Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Misiones), Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, N
| | - J. Sebastián Barrionuevo
- División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—Consejo Nacional de Investigaciones Científicas y Técnicas, Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Marissa Fabrezi
- Instituto de Bio y Geociencias del NOA, Centro Científico Tecnológico-Salta, Consejo Nacional de Investigaciones Científicas y Técnicas, 9 de Julio 14, 4405, Rosario de Lerma, Salta, Argentina
| | - Erik R. Wild
- Department of Biology and Museum of Natural History, University of Wisconsin-Stevens Point. Stevens Point, Wisconsin, 54022, USA
| | - Célio F.B. Haddad
- Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A1515, CEP 13506-900, Rio Claro, São Paulo, Brazil
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Stenberg P, Saura A. Meiosis and Its Deviations in Polyploid Animals. Cytogenet Genome Res 2013; 140:185-203. [DOI: 10.1159/000351731] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Beçak ML, Fukuda-Pizzocaro K. Pore-linked filaments in anura spermatocyte nuclei. AN ACAD BRAS CIENC 2007; 79:63-70. [PMID: 17401476 DOI: 10.1590/s0001-37652007000100009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Accepted: 02/17/2006] [Indexed: 05/14/2023] Open
Abstract
Pore-linked filaments were visualized in spreads of anuran spermatocyte nuclei using transmission electron microscope. We used Odontophrynus diplo and tetraploid species having the tetraploid frogs reduced metabolic activities. The filaments with 20-40 nm width are connected to a ring component of the nuclear pore complex with 90-120 nm and extend up to 1 microm (or more) into the nucleus. The filaments are curved and connect single or neighboring pores. The intranuclear filaments are associated with chromatin fibers and related to RNP particles of 20-25 nm and spheroidal structures of 0.5 microm, with variations. The aggregates of several neighboring pores with the filaments are more commonly observed in 4n nuclei. We concluded that the intranuclear filaments may correspond to the fibrillar network described in Xenopus oocyte nucleus being probably related to RNA transport. The molecular basis of this RNA remains elusive. Nevertheless, the morphological aspects of the spheroidal structures indicate they could correspond to nucleolar chromatin or to nucleolus-derived structures. We also speculate whether the complex aggregates of neighboring pores with intranuclear filaments may correspond to pore clustering previously described in these tetraploid animals using freeze-etching experiments.
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Affiliation(s)
- Maria Luiza Beçak
- Laboratório de Genética, Instituto Butantan, São Paulo, SP, 05503-900, Brasil.
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Lourenço LB, Recco-Pimentel SM, Cardoso AJ. A second case of multivalent meiotic configurations in diploid species of Anura. Genet Mol Biol 2000. [DOI: 10.1590/s1415-47572000000100024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We analyzed the meiotic chromosomes of specimens from the two karyological groups of Physalaemus petersi (Jiménez de la Espada, 1872) described in the literature. Multivalent configurations (rings or chains) were observed in both groups. This meiotic organization resulted from the terminal association of non-homologous chromosomes, and an analysis of C-banded multivalents indicated no involvement of heterochromatic regions in these associations. A possible explanation for such meiotic configurations is the occurrence of heterozygous translocations. Thus, multivalents may indicate the involvement of translocation events in the karyotypic evolution of P. petersi.
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Abstract
The yeast Saccharomyces cerevisiae was used to study the genetic consequences of polyploidy in a unicellular organism. Isogenic diploid (2N), triploid (3N) and tetraploid (4N) strains with a genetically marked chromosome VII (cyh2-leu1-CEN7-ade6) were constructed and were used to follow the loss of one, two or three chromosome VII's during mitosis. We found that as ploidy increased, the frequency of loss of a single chromosome VII increased: Loss of one copy of chromosome VII occurred at a rate nearly 30-fold higher in triploids and approximately 1000-fold higher in tetraploids than in the diploid. Loss of two or three copies occurred at an even greater frequency. These findings suggest either that aneuploidy (3N-1, 3N-2, 4N-1, 4N-2, 4N-3) increases genome instability or that multiple chromosome loss events occur at high frequency. Polyploidy appears to dramatically increase chromosome loss, presumably due to the inability of the cell to undergo proper chromosome segregation. The biological significance and possible causes for the instability of polyploidy in unicellular organisms such as yeast are discussed.
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Affiliation(s)
- V W Mayer
- Division of Toxicological Studies, Food and Drug Administration, Washington, DC 20204
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Schmid M, Haaf T, Schempp W. Chromosome banding in Amphibia. IX. The polyploid karyotypes of Odontophrynus americanus and Ceratophrys ornata (Anura, Leptodactylidae). Chromosoma 1985; 91:172-84. [PMID: 3979176 DOI: 10.1007/bf00328215] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The somatic and meiotic chromosomes of the South American leptodactylid toads Odontophrynus americanus, Ceratophyrys ornata, and C. cranwelli were analysed both with conventional staining and differential banding techniques. The karyotypes of O. americanus were tetraploid; those of C. ornata octaploid. Ceratophrys cranwelli is a diploid species whose karyotype displays great similarities with that of C. ornata. The high frequency of multivalent pairing configurations in the meioses of O. americanus and C. ornata indicate that these animals were of autopolyploid origin. The conventionally stained somatic chromosomes of O. americanus can be arranged into sets of four similar chromosomes (quartets); those of C. ornata, into sets of eight similar chromosomes (octets). The banding patterns revealed heterogeneity within some quartets of O. americanus, dividing each of them into two pairs of homologous chromosomes. In analogy, some octets of C. ornata can be subdivided into two quartets of chromosomes with homologous bands. These structural heterogeneities within the quartets and octets are interpreted as a "diploidization" of the polyploid karyotypes. Diploidization leads to genomes that are polyploid with respect to the amount of genetic material and diploid with respect to chromosomal characteristics and the level of gene expression. In tetraploid O. americanus, the number of nucleolus organizer regions (NORs) and their DNA content is proportional to the degree of ploidy. In contrast, up to eight NORs have been deleted in the octoploid C. ornata. These NOR losses are discussed as a possible reason for the reduction of genetic activity in polyploid genomes.
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Leipoldt M. Towards an understanding of the molecular mechanisms regulating gene expression during diploidization in phylogenetically polyploid lower vertebrates. Hum Genet 1983; 65:11-8. [PMID: 6357994 DOI: 10.1007/bf00285022] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Polyploidization and regional gene duplication have occurred frequently during vertebrate evolution, providing the genetic material necessary for creating evolutionary novelties. Mammals, including man, can be regarded as diploid species with a polyploid history of evolution. Polyploidization steps during the phylogeny of mammals probably took place in the genomes of amphibian- or fish-like mammalian ancestors. The polyploid status has subsequently been shaped by the process of diploidization, leading to genomes that are polyploid with respect to the amount of genetic material and the number of gene copies, and diploid with respect to the level of gene expression and chromosomal characteristics. Phylogenetically tetraploid amphibian and teleost species together with their diploid close relatives can be used as a model system to study the effect of polyploidization and the mechanisms of diploidization of a parallel event during early mammalian evolution. Experimental evidence permits the assumption that the diploidization of gene expression in tetraploid cyprinid fish may be functionally correlated with structural modifications of the ribosomal components, RNA and protein. These findings are discussed in the light of reduced protein synthesis in diploidized tetraploid species and a mechanism to explain diploidization during mammalian evolution.
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Cytogenetics of the chinese giant salamander, Andrias davidianus (Blanchard): the evolutionary significance of cryptobranchoid karyotypes. Chromosoma 1982. [DOI: 10.1007/bf00292262] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cytogenetics. ACTA ACUST UNITED AC 1979. [DOI: 10.1016/s1546-5098(08)60030-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Schwantes MLB, Schwantes AR, Beçak W. Electrophoretic studies on polyploid amphibians—I. 6-phosphogluconate dehydrogenase (6-PGD). ACTA ACUST UNITED AC 1977. [DOI: 10.1016/0305-0491(77)90237-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pedersen RA. DNA content, ribosomal gene multiplicity, and cell size in fish. THE JOURNAL OF EXPERIMENTAL ZOOLOGY 1971; 177:65-78. [PMID: 5569239 DOI: 10.1002/jez.1401770108] [Citation(s) in RCA: 90] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Beçak W, Goissis G. DNA and RNA content in diploid and tetraploid amphibians. EXPERIENTIA 1971; 27:345-6. [PMID: 5546670 DOI: 10.1007/bf02138189] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Beçak ML, Beçak W. Further studies on polyploid amphibians (Ceratophrydidae). 3. Meiotic aspects of the interspecific triploid hybrid: Odontophrynus cultripes (2n=22) x O. americanus (4n=44). Chromosoma 1970; 31:377-85. [PMID: 5490304 DOI: 10.1007/bf00285829] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Beçak W, Beçak ML, de Langlada FG. Artificial triploid hybrids by interspecific mating of Odontophrynus (amphibia, anura). EXPERIENTIA 1968; 24:1162-4. [PMID: 5721150 DOI: 10.1007/bf02147828] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Beçak W, Schwantes AR, Schwantes ML. Polymorphism of albumin-like proteins in the South American tetraploid frog Odontophrynus americanus (Salientia: ceratophrydidae). THE JOURNAL OF EXPERIMENTAL ZOOLOGY 1968; 168:473-6. [PMID: 5749144 DOI: 10.1002/jez.1401680407] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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