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[wild reservoirs and vectors of trypanosoma cruzi. xl. natural infection of the monkey, callithrix argentata melanura (geoffroy, 1812) by t. cruzi]. 19704996303
primary structures of adult hemoglobins of silvery marmoset, callithrix argentatus, and cotton-headed tamarin, saguinus oedipus.tryptic peptides of the alpha and beta chains from silvery marmoset (callithrix argentatus) and cotton-headed tamarin (saguinus oedipus) hemoglobins were isolated and sequenced, respectively, by conventional methods. the ordering of the peptides in each chain was deduced from the homology of their sequences with those of human adult hemoglobin. the primary structures thus deduced are compared with those of other primate hemoglobins, and the rate of evolution in new world monkey hemoglobins is di ...19846427202
influence of season on birth distribution in marmosets and tamarins.the cotton-topped tamarin in captivity exhibits a seasonal influence on birth distribution, while the captive silvery marmoset, common marmoset, goeldi's monkey and red-mantled tamarin are not significantly affected.19806780724
molecular cytotaxonomy of new world monkeys (platyrrhini) - comparative analysis of five species by multi-color chromosome painting gives evidence for a classification of callimico goeldii within the family of callitrichidae.chromosome rearrangements are considered as "rare genomic changes" and can provide useful markers and even landmarks for reconstructing phylogenies complementary to dna sequence data and bio-morphological comparisons. here, we applied multi-directional chromosome painting to reconstruct the chromosome phylogeny and evolutionary relationships among the new world monkey (platyrrhini) species callithrix argentata, cebuella pygmaea, saguinus oedipus, callithrix jacchus and callimico goeldii. the res ...200111856883
investigation of marmoset hybrids (cebuella pygmaea x callithrix jacchus) and related callitrichinae (platyrrhini) by cross-species chromosome painting and comparative genomic hybridization.we report on the cytogenetics of twin offspring from an interspecies cross in marmosets (callitrichinae, platyrrhini), resulting from a pairing between a female common marmoset (callithrix jacchus, 2n = 46) and a male pygmy marmoset (cebuella pygmaea, 2n = 44). we analyzed their karyotypes by multi-directional chromosome painting employing human, saguinus oedipus and lagothrix lagothricha chromosome-specific probes. both hybrid individuals had a karyotype with a diploid chromosome number of 2n = ...200515545729
cholelithiasis in four callitrichid species (leontopithecus, callithrix).medical records of three male and three female callitrichids of four species (leontopithecus chrysopygus, leontopithecus rosalia, callithrix argentata argentata, callithrix kuhlii) diagnosed with cholelithiasis were reviewed. ages of affected animals at the time of diagnosis ranged from 2-14 yr. definitive antemortem diagnosis of cholelithiasis was made in four of the six cases. chronic weight loss, lethargy, and weakness were seen in all cases. chronic intermittent diarrhea was seen in three ca ...200617312811
phylogenomics of species from four genera of new world monkeys by flow sorting and reciprocal chromosome painting.the taxonomic and phylogenetic relationships of new world monkeys (platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic fossils are rare. recently, molecular data have led to a radical revision of the traditional taxonomy and phylogeny of these primates. here we examine new hypotheses of platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species belonging to four genera of platyrrhines included in the c ...200717767727
primate diversity, habitat preferences, and population density estimates in noel kempff mercado national park, santa cruz department, bolivia.this report documents primate communities at two sites within noel kempff mercado national park in northeastern santa cruz department, bolivia. diurnal line transects and incidental observations were employed to survey two field sites, lago caiman and las gamas, providing information on primate diversity, habitat preferences, relative abundance, and population density. primate diversity at both sites was not particularly high, with six observed species: callithrix argentata melanura, aotus azara ...19989802511
on the mammals collected by friedrich sellow in brazil and uruguay (1814-1831), with special reference to the types and their provenance.from 1814 to 1831, the prussian naturalist friedrich sellow collected 263 mammals in brazil and uruguay. upon receiving the specimens, the curator of the berlin zoological museum, martin lichtenstein, removed the original labels and replaced with ones containing more generalized locations. as a consequence, several type specimens have now dubious type localities. we examined these types as well as geographically restricted mammals collected by sellow. in some cases, there are inconsistencies bet ...201728187657
range extension of the vulnerable dwarf marmoset, callibella humilis (roosmalen et al. 1998), and first analysis of its long call structure.we present two new records for the vulnerable dwarf marmoset, callibella humilis. the first record, based on observed and photographed individuals, is from a campinarana area on the left (west) bank of the rio madeirinha, a left (west)-bank tributary of the rio roosevelt in the state of amazonas, municipality of novo aripuanã and extends the distribution of the species ~270 km southwards, to the left (west) bank of the rio roosevelt. the second record is based on an individual collected from the ...201323975162
congenital digital aplasia in a free-ranging group of silvery marmosets, mico argentatus.congenital aplasia of the hallux (big toe) was observed in seven adult and infant members of a free-ranging group of silvery marmosets (mico argentatus) in the alter do chão savannah of central amazonia. apparently heritable, the condition was more common in males (80%) than females (50%) but was found in no other members of the population. animals with the condition presented normal behaviour.201020236218
phylogenetic relationships of the callitrichinae (platyrrhini, primates) based on beta2-microglobulin dna sequences.the phylogenetic relationships of callitrichine primates have been determined by dna sequence analyses of exons 1, 2, and 3 of the beta2-microglobulin gene. parsimony, distance, and maximum likelihood analyses of ca. 900 base pairs of 21 taxa, representing all callitrichine genera, indicated that saguinus was the most basal offshoot. within saguinus, s. fuscicollis appeared as the first divergent lineage followed by an unresolved trichotomy formed by s. mystax/s. imperator, s. midas/s. bicolor, ...199910380996
molecular phylogeny of new world primates (platyrrhini) based on beta2-microglobulin dna sequences.neotropical primates, traditionally grouped in the infraorder platyrrhini, comprise 16 extant genera. cladistic analyses based on morphological characteristics and molecular data resulted in topologic arrangements depicting disparate phylogenetic relationships, indicating that the evolution of gross morphological characteristics and molecular traits is not necessarily congruent. here we present a phylogenetic arrangement for all neotropical primate genera obtained from dna sequence analyses of t ...199910222163
chromosomal relationships and phylogenetic and clustering analyses on genes callithrix group argentata (callitrichidae, primates).the karyotypes of three species of marmosets of the callithrix argentata group (c. argentata, c. humeralifera and c. chrysoleuca) were studied. comparisons were made among species and with the previously described karyotypes of c. emiliae, c. mauesi (argentata group) and c. jacchus (jacchus group). two chromosomes rearrangements differentiate the argentata (2n=44) and jacchus (2n=46) groups: fusion or fission and a paracentric invasion. the argentata group is also characterized by the addition o ...19968641142
analysis of constitutive heterochromatin by fluorochromes and in situ digestion with restriction enzymes in species of the group callithrix argentata (callitrichidae, primates).the karyotypes of the species belonging to the group callithrix argentata (callitrichidae, platyrrhini) are characterized by large amounts of distal constitutive heterocharomatin (ch). the ch of the species c. argentata, c. humeralifera and c. emiliae was analyzed by banding with the restriction enzymes hinfi, mboi, alui, rsai, ddei, haeiii and mspi, as well as the fluorochromes cma3 and dapi. the results obtained permitted us to classify the ch of these species into three distinct types: 1) dis ...19968641141
recently amplified satellite dna in callithrix argentata (primates, platyrrhini).a satellite dna has been cloned from the neotropical primate callithrix argentata and designated carb. the presence of the satellite was assayed in new and old world primates by blot hybridization: carb is highly amplified in the genomes of all three species belonging to the c. argentata species group (c. argentata, c. emiliae, c. humeralifer), but is either absent, or present in only minor amounts, in other primates, including the closely related species, c. jacchus. a completely sequenced carb ...19957606357
spontaneous lobster claw deformity in a silvery marmoset (callithrix argentata). 19846439948
the black-tailed marmoset (callithrix argentata melanura) recorded from paraguay.the black-tailed marmoset (callithrix argentata melanura) occurs in central-western brazil and adjacent parts of bolivia, and is the only member of the genus (callithrix) to occur naturally outside brazil. data presented in this paper extend the range of this marmoset at least 200 km to the southwest into yet another country, paraguay.198331991957
evolution of the human chromosome 13 synteny: evolutionary rearrangements, plasticity, human disease genes and cancer breakpoints.the history of each human chromosome can be studied through comparative cytogenetic approaches in mammals which permit the identification of human chromosomal homologies and rearrangements between species. comparative banding, chromosome painting, bacterial artificial chromosome (bac) mapping and genome data permit researchers to formulate hypotheses about ancestral chromosome forms. human chromosome 13 has been previously shown to be conserved as a single syntenic element in the ancestral prima ...202032244767
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