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Previous issue date: 2010-04-09 / CAPES / The genus Ctenomys Blainville, 1826 has a systematic and complex although there are morphological and molecular studies on the genus, it is still difficult to identify and classify these individuals who have a high diversity of karyotypes with diploid numbers ranging from 2n = 10 to 2n = 70. However, some authors confirm the usefulness of taxonomic structures such as penis and baculum in the systematic study of rodents. The penis, as well as the baculum (penis bone), has been the subject of several studies because of its great morphological diversity. This work is based on the study of external morphology of the glans penes and baculum of Ctenomys minutus, Ctenomys flamarioni and Ctenomys torquatus to identify possible variations and compare the differences. The study was done from the penis of adult set of the species listed above. Photographs were taken, dissections, drawings with a camera lucida and diaphanization the penis. For analysis of the microstructure of the surface of the glans penes was used the technique of scanning electron microscopy (SEM). The results showed great differences in morphological structure of the baculum of the three species analyzed and showed structures similar to thorns that covered the entire surface of the glans penes with varying distribution over the glans. Our results indicate that the baculum may be an excellent marker complex taxonomic groups such as the Ctenomys. Morphological studies of the surface of the glans penes and baculum combined with genetic studies, molecular and biogeographical can provide important information to better understand the systematic, evolution and taxonomy of the genus. / O g?nero Ctenomys Blainville, 1826 possui uma sistem?tica complexa e apesar de j? existirem estudos moleculares e morfol?gicos sobre o g?nero, ainda ? dif?cil identificar e classificar estes indiv?duos que possuem uma alta diversifica??o cariot?pica com n?meros dipl?ides variando de 2n= 10 a 2n= 70. Por?m, alguns autores confirmam a utilidade taxon?mica de estruturas como p?nis e baculum no estudo da sistem?tica de roedores.O p?nis, assim como o baculum (osso peniano), tem sido alvo de diversos estudos devido sua grande diversidade morfol?gica. O presente trabalho se baseia no estudo da morfologia externa do glans penes e do baculum de Ctenomys minutus, Ctenomys flamarioni e Ctenomys torquatus com o objetivo de identificar poss?veis varia??es e comparar as diferen?as encontradas. O estudo foi feito a partir dos p?nis fixados de indiv?duos adultos das esp?cies listadas anteriormente. Foram feitas fotografias, dissec??es, desenhos com c?mara clara e diafaniza??o dos p?nis. Para an?lises da microestrutura da superf?cie do glans penes foi utilizado a t?cnica de Microscopia Eletr?nica de Varredura (MEV). Os resultados revelaram grandes diferen?as morfol?gicas na estrutura do baculum das tr?s esp?cies analisadas e revelaram estruturas semelhantes a espinhos que recobriam toda a superf?cie do glans penes com distribui??o variando ao longo da glande. Nossos resultados indicam que o baculum pode ser um excelente marcador taxon?mico em grupos complexos como ? o caso dos Ctenomys. Estudos morfol?gicos da superf?cie do glans penes e do baculum aliados a estudos gen?ticos, moleculares e biogeogr?ficos podem fornecer informa??es importantes para melhor entendermos a sistem?tica, evolu??o e taxonomia do g?nero.
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:jspui/2351 |
| Date | 09 April 2010 |
| Creators | BERNARDO, Joice dos Santos Lima |
| Contributors | Barbosa, Oscar Rocha, Santos, Jacenir Reis dos, Freitas, Thales Roberto O. de |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Programa de P?s-Gradua??o em Biologia Animal, UFRRJ, Brasil, Instituto de Ci?ncias Biol?gicas |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | ALTUNA, CA. & LESSA, EP., 1985. Penial Morphology in Uruguayan Species of Ctenomys (Rodentia: Octodontidae). Journal of Mammalogy. Vol. 66 no. 3 p. 483-488. BALBONTIN, J.; REIG S. & MORENO, S., 1996. Evolutionary relationships of Ctenomys (Rodentia: Octodontidae) from Argentina, based on penes morphology. Acta Theriologica. Vol. 41 p.237- 253. BARYSHNIKOV, GF.; BININDA-EMONDS, ORP. & ABRAMOV, AV., 2003. Morphological variability and evolution of the baculum (os penis) in Mustelidae (Carnivora). Journal of Mammalogy. Vol. 84 no. 2 p.673-690. BIDAU, CJ., 2006. Fam?lia Ctenomyidae. In: Mam?feros de Argentina. Sistem?tica y distribuci?n (ed. B?rquez, MM.; D?az & Ojeda, RA). SAREM. Tucum?n, Argentina. p. 212?231. BRADLEY, RD. & SCHMIDLY, JD., 1987. The glans penes and bacula in latin American taxa of the Peromyscus boylii group. Jounal of mammalogy. Vol. 68 p. 595-616. BRADLEY, RD.; SCHMIDLY, JD. & OWEN, RD., 1989. Variation in the glans penes and bacula among latin american populations of the Peromyscus boylii species complex. Journal of mammalogy. Vol. 70 no. 4 p. 712-725. BRADLEY, RD.; SCHMIDLY, JD. & OWEN, RD., 1990.Variation in the glans penes and bacula among Latin American populations of Peromyscus aztecus. Occasional papers the museum Texas Tech University, no. 135. - 47 - CONTRERAS, JR. & BIDAU, CJ., 1999. L?neas generales del panorama evolutivo de los roedores excavadores sudamericanos del g?nero Ctenomys (Mammalia, Rodentia, Caviomorpha, Ctenomyidae). Ciencia Siglo. Vol. 21 no. 1 p.1?22. COOK, JA. & YATES, TL. 1994. Systematic relationships of the bolivian tuco-tucos, genus Ctenomys (Rodentia: Ctenommyidae). Journal of mammalogy. Vol. 75 no. 3 p. 583-599. DARWIN, C., 1871. Journal of researches into the natural history and geology of the countries visited during the voyage round The world of the H.M.S. Beagle. D. Appleton and Conpany. New York. P. 519. DINGERKUS, G. & UHLER, LD., 1977. Enzyme clearing of alcian blue stained whole small vertebrates for demonstration of cartilage. Stain Technology. Vol. 52 p.229-232. DIXSON, AF., 1987. Observations on the evolution of the genitalia and copulatory behaviour in male primates . Journal of Zoology. Vol. 213 p. 423-443. EWER, RF., 1973.The carnivores. Cornell University, Nova York. FERGUSON, SH. & LARIVI?RE, S., 2004., Are long penes bones an adaption to high latitude snowy environments? Oikos. Vol.105 p. 255-267. - 48 - FERNANDEZ-STOLZ, GP.; STOLZ, JFB.& FREITAS, TRO., 2007. Bottlenecks and dispersal in the tuco-tuco-das-dunas, Ctenomys flamarioni (Rodentia: Ctenomyidae) in southern Brazil. Journal of mammalogy. Vol. 88 no. 4 p.935- 945. FRAYLEY, D.; CAMPBELL, KE.&WOLFF, RG., 1980. Additions to the knowledge of Hippocamelus, Ctenomys, Myocaster from the middle Pleistocene of the Tarija Basin, Bol?via. Papers of the Museum of Natural History . The University of Kansas. Vol. 85 p. 1-14. FREITAS, TRO., 1994. Geographical variation of heterochromatin in Ctenomys flamarioni (Rodentia-Octodontidae) and its cytogenetic relationships with other species of the genus. Cytogenetics. Cells Genetics.Vol. 67 p. 193-198, FREITAS TRO., 1995. Geographic distribution and conservation of four species of the genus Ctenomys in southern Brazil. Studies on Neotropical Fauna and Environment Vol. 30 p.53-59. FREITAS, TRO., 1997. Chromosome polymorphism in Ctenomys minutus (Rodentia-Octodontidae). Brazilian Journal of Genetics. Vol.20 no.1 FREITAS, TRO., 2001. Tuco-tucos (Rodentia-Octodontidae) in southern Brazil: Ctenomys lami spec. nov. separated from C. minutus Nehring 1887. Studies on Neotropical Fauna and Environment Vol. 36 p. 1-8. FREITAS, TRO. & LESSA, EP., 1984. Cytogenetics and morphology of Ctenomys torquatus (Rodentia-Octodontidae). Journal of Mammalogy. Vol. 65 p. 637-642. - 49 - GIM?NEZ, MD.; MIROL, CJ.; BIDAU, CJ. & SEARLE, JB., 2002. Molecular analysis of populations of Ctenomys (Caviomorpha, Rodentia) with high karyotypic variability. Cytogenetic and Genome Research. Vol. 96 p.130?136. GON?ALVES, GL. & FREIRAS, TRO., 2009. Intraspecific Variation and Genetic Differentiation of the Collared Tuco-tuco (Ctenomys Torquatus) in Southern Brazil. Journal of mammalogy. Vol. 90 no. 4 p.1020- 1031. GREENWALD, GS., 1956. The reproductive cycle of the field mouse, Microtus californicus. Journal of Mammalogy. Vol. 37 p. 213-222. HAMILTON, WJ. JR., 1949. The bacula of some North American Vespertilionid bats. Journal of Mammalogy. Vol. 30 p. 97-102. JELISSON, WL., 1945. A suggest homologof the Os penes or baculum of mammals. journal of mammalogy. Vol. 26 no. 2 p. 146-147. LARIVI?RE, S. & FERGUSON, SH., 2002. On the evolution of the mammalian baculum: vaginal friction, prolonged intromission or induced ovulation? Mammalogy. Vol. 32 p. 283-294. LESSA, EP. & COOK JA., 1989. Interespecific variation in penial characters in the genus Ctenomys (Rodentia: Octodontidae). Journal of mammalogy. Vol.70 p.856- 860. LESSA, EP. & COOK, JA., 1998. The molecular phylogenetics of tuco-tucos (genus Ctenomys, Rodentia: Octodontidae) suggests an early burst of speciation. Molecular Phylogenetics and Evolution. Vol.9 p. 88-99. - 50 - LONG, CA. & FRANK, T., 1968. Morphometric variation and function in the baculum, with comments on correlation of parts. Journal of Mammalogy. Vol.49 p.32-43. MASCHERETTI, S.; MIROL, PM.; GIM?NEZ, MD.; BIDAU, CJ.; CONTRERAS, JR. & SEARLE, JB., 2000. Phylogenetics of the speciose and chromosomally variable genus Ctenomys (Ctenomyidae, Octodontoidea), based on mitochondrial cytochrome b sequences. Biological Journal of the Linnean Society. Vol.70 p.361-376 NOWAK, RM., 1999.Walker?s mammals of the world. 6 ed. Johns Hopkins University Press. Baltimore. London. Vol. 2 PARAG, A.; BENNETT, NC.; FAULKES, CG. & BATEMAN, PW., 2006. Penile morphology of African mole rats (Bathyergidae): structural modification in relation to mode of ovulation and degree of sociality. Journal of Zoology. Vol.270 p. 323?329. PATTERSON, BD., 1983. Baculum-Body Size Relationships as Evidence for a Selective Continuum on Bacular Morphology. Journal of Mammalogy. Vol. 64 no. 3, p. 496-499. PATTERSON, BD., & THAELER JR, CS., 1982. The mammalian baculum: hypotheses on the nature of bacular variabillity. Journal of Mammalogy. Vol.63 p. 1-15. PEARSON, OP., 1974. Ecology and Behaviour chairman?s introduction. in: The biology of hystricomorph rodents (eds. Georgeand,WB.& Weir, J.) London.Vol. 34 p. 1-482. - 51 - RUTH, EB., 1934. The os priapi: a study in bone development. The Anatomical Record Vol. 60 p. 231-249 SIMSON, S.; FERRUCCI, L.; KURTONUR, C.; OZKAN, B. & FOLIPPUCCI, MG., 1995. Phalli and bacula of European dormice: description and comparisson. Hystrix. Vol.6 p. 231-244. TRAVI, VH., 1981, Preliminary note on a new species of the genus Ctenomys (Rodentia, Ctenomyidae). Iheringa Series Zoology. Vol. 60 p. 123-124. VITULLO, AD.; ROLDAN, ERS. & MERANI, MS., 1988. On the morphology of spermatozoa of tuco-tucos, Ctenomys (Rodentia, Ctenomyidae): new data and its implications for the evolution of the genus. Journal of Zoology. Vol. 215 p. 675-683. ZENUTO, RR.; VASSALLO, AI. & BUSCH, C., 2002. Comportamiento social y reproductivo del roedor subterr?neo solitario Ctenomys talarum (Rodentia: Ctenomyidae) en condiciones de semicautiverio. Revista Chilena de Historia. Natural. Vol.75 no.1 |
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