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Karyotypic diversity

Karyotypic diversity and evolutionary trends in the Neotropical catfish genus Hypostomus Lacépède, 1803 (Teleostei, Siluriformes, Loricariidae)

Karyotypic diversity and evolutionary trends in the Neotropical catfish genus Hypostomus Lacépède, 1803 (Teleostei, Siluriformes, Loricariidae)

... he family Loricariidae with 813 nominal species is one of the largest ish families of the world. Hy- postominae, its more complex subfamily, was recently divided into ive tribes. he tribe Hypostomini is composed of a ...

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Chromosomal Studies of Five Species of the Marine Fishes From the Paranaguá Bay and the Karyotypic Diversity in the Marine Teleostei of the Brazilian Coast

Chromosomal Studies of Five Species of the Marine Fishes From the Paranaguá Bay and the Karyotypic Diversity in the Marine Teleostei of the Brazilian Coast

... higher karyotypic complexity than the observed in the species studied by Pastori et ...particular karyotypic diversity of this group, which can be explained by the evolutionary process that these ...

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Karine Frehner Kavalco1 , Karina de Oliveira Brandão2 , Rubens Pazza1 and Lurdes Foresti de Almeida-Toledo2

Karine Frehner Kavalco1 , Karina de Oliveira Brandão2 , Rubens Pazza1 and Lurdes Foresti de Almeida-Toledo2

... The group “A. fasciatus” presented high karyotypic diversity. Two “standard” cytotypes were characterized by the exclusive presence of homologous chromosomes (bear- ing 2n = 46 and 2n = 48). However, other ...

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Cytogenetic divergence in two sympatric fish species of the genus Astyanax Baird and Girard, 1854 (Characiformes, Characidae) from northeastern Brazil

Cytogenetic divergence in two sympatric fish species of the genus Astyanax Baird and Girard, 1854 (Characiformes, Characidae) from northeastern Brazil

... high karyotypic diversity of Astyanax species when compared to other Neotropical fish groups is thought to be related to the biological traits of these small ...

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Genomic and karyotypic variation in Drosophila parasitoids (Hymenoptera, Cynipoidea, Figitidae)

Genomic and karyotypic variation in Drosophila parasitoids (Hymenoptera, Cynipoidea, Figitidae)

... Karyotypes of only two parasitic wasps attacking Drosophila spp., namely, Lepto- pilina heterotoma with n = 10 (Crozier 1975) and L. clavipes (Hartig, 1841) with n = 5 (Pannebakker et al. 2004) have been previously ...

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Karyotypic variation of Glanidium ribeiroi Haseman, 1911 (Siluriformes, Auchenipteridae) along the Iguazu river basin

Karyotypic variation of Glanidium ribeiroi Haseman, 1911 (Siluriformes, Auchenipteridae) along the Iguazu river basin

... 2010. Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic ...

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Roberto Ferreira Artoni, Oscar Akio Shibatta, Maria Claudia Gross, Carlos Henrique Schneider, Mara Cristina de Almeida, Marcelo Ricardo Vicari and Luiz Antonio Carlos Bertollo

Roberto Ferreira Artoni, Oscar Akio Shibatta, Maria Claudia Gross, Carlos Henrique Schneider, Mara Cristina de Almeida, Marcelo Ricardo Vicari and Luiz Antonio Carlos Bertollo

... the karyotypic diversity must occur in consequence of the fixa- tion of chromosomal rearrangements in the populations, in- fluenced by factors like effective population size, gene flow and/or genetic ...

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Karyotypic variation and geographic distribution of Anopheles campestris-like (Diptera: Culicidae) in Thailand

Karyotypic variation and geographic distribution of Anopheles campestris-like (Diptera: Culicidae) in Thailand

... Seventy-one isolines of Anopheles campestris-like were established from wild-caught females collected from human-biting and animal-biting traps at 12 locations in Thailand. All isolines had an average branch summation of ...

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SUSCEPTIBILITY OF TWO KARYOTYPIC FORMS OF Anopheles aconitus (DIPTERA: CULICIDAE) TO Plasmodium falciparum AND P. vivax

SUSCEPTIBILITY OF TWO KARYOTYPIC FORMS OF Anopheles aconitus (DIPTERA: CULICIDAE) TO Plasmodium falciparum AND P. vivax

... the sites for mosquito collections by using both human-baited and buffalo-baited traps. Four laboratory-colony strains of An. aconitus were established based on metaphase karyotypes and localities. Since the results of ...

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Brachyuran crabs diversity in Mudasal Odai and Nagapattinam coast of south east India

Brachyuran crabs diversity in Mudasal Odai and Nagapattinam coast of south east India

... There were number studies about the diversity of brachyuran crabs near our study area reported. In Chennai coast (Thangaraj Subramanian, 2001; Krishnamoorthy, 2007; Lakshmi Pillai and Thirumilu, 2008), Gulf of ...

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Intra- and interspecifi c karyotypic variations of the genus Senna Mill. (Fabaceae, Caesalpinioideae)

Intra- and interspecifi c karyotypic variations of the genus Senna Mill. (Fabaceae, Caesalpinioideae)

... Some species, such as S. occidentalis and S. obtusifolia, demonstrated intraspecific karyotypic variations, with karyotypes of 2n = 24, 26 and 28 (Chaulagain & Sakya 2002; Biondo et al. 2005a; Rice et al. ...

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Unisexual reproduction drives meiotic recombination and phenotypic and karyotypic plasticity in Cryptococcus neoformans.

Unisexual reproduction drives meiotic recombination and phenotypic and karyotypic plasticity in Cryptococcus neoformans.

... shown here for simplicity) that were analyzed for progeny from a - a unisexual reproduction, progeny SSB369 inherited ‘‘a’’ alleles from parental strain 431 a for all but 6 markers (No. [r] ...

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Karyotypic analysis in species of the genus Dasyprocta (Rodentia: Dasyproctidae) found in Brazilian Amazon

Karyotypic analysis in species of the genus Dasyprocta (Rodentia: Dasyproctidae) found in Brazilian Amazon

... Number of 2n=64 and 2n=65 cells, collected from peripheral blood, bone marrow and spleen, in Dasyprocta sp. and peripheral blood, in D. The presence of lineage 2 n = 65, with one supernu[r] ...

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Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.

Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.

... It is important to note, however, that two sites sampled on the leeward coast of Curac¸ao had high levels of clonal structure despite being in an area with low hurricane incidence. One explanation for the occurrence of ...

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Maintenance of positive diversity-stability relations along a gradient of environmental stress.

Maintenance of positive diversity-stability relations along a gradient of environmental stress.

... on diversity-abundance and diversity-stability relations in laboratory microcosms composed of temperate multi- trophic rock pool communities to identify differences in community and functional group ...

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Feeding diversity in macroinvertebrate communities: a contribution to estimate the ecological status in shallow waters

Feeding diversity in macroinvertebrate communities: a contribution to estimate the ecological status in shallow waters

... In stressed environments subjected either to anthropogenic action or natural physical stress, it is expected that the diversity of feeding groups decreases. This decrease is perhaps attributable to changes in ...

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JISTEM J.Inf.Syst. Technol. Manag.  vol.8 número3

JISTEM J.Inf.Syst. Technol. Manag. vol.8 número3

... This research aims at evaluating the risk analysis process in Information Technology and Communication (ICT) outsourcing conducted by organizations of the private sector. The research is characterized by being a ...

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Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil

Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil

... the karyotypic evolution of fishes (Ojima & Ueda, 1979), most studies of heterochromatin variation in Neotropical fishes have not been interpreted in a temporal ...

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Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)

Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)

... marked diversity in the karyotypic formula, which suggested the occurrence of several Robertsonian rearrangements and pericentric inversions during the evolutionary history of this ...

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Chromosome characterization and variability in some Iridaceae from Northeastern Brazil

Chromosome characterization and variability in some Iridaceae from Northeastern Brazil

... The monocot family Iridaceae comprises approxi- mately 2050 species distributed among 67 genera, with a major center of radiation in the southern African Sahara (Goldblatt et al., 2008). The Neotropics are considered the ...

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