Results 1 to 10 of about 24,741 (157)

Multiple sex chromosome systems in howler monkeys (Platyrrhini, Alouatta) [PDF]

open access: yesComparative Cytogenetics, 2014
In light of the multiple sex chromosome systems observed in howler monkeys (Alouatta Lacépède, 1799) a combined cladistic analysis using chromosomal and molecular characters was applied to discuss the possible origin of these systems ...
Eliana Steinberg   +2 more
doaj   +5 more sources

Chromosome phylogeny of the subfamily Pitheciinae (Platyrrhini, Primates) by classic cytogenetics and chromosome painting

open access: yesBMC Evolutionary Biology, 2010
Background The New World monkey (Platyrrhini) subfamily Pitheciinae is represented by the genera Pithecia, Chiropotes and Cacajao. In this work we studied the karyotypes of Pithecia irrorata (2n = 48) and Cacajao calvus rubicundus (2n = 45 in males and ...
Neusser Michaela   +7 more
doaj   +1 more source

Taxonomic review of Saguinus mystax (Spix, 1823) (Primates, Callitrichidae), and description of a new species [PDF]

open access: yesPeerJ, 2023
Although the Amazon has the greatest diversity of primates, there are still taxonomic uncertainties for many taxa, such as the species of the Saguinus mystax group.
Gerson Paulino Lopes   +11 more
doaj   +2 more sources

Vertical clinging and leaping induced evolutionary rate shifts in postcranial evolution of tamarins and marmosets (Primates, Callitrichidae)

open access: yesBMC Ecology and Evolution, 2021
Background Callitrichids comprise a diverse group of platyrrhine monkeys that are present across South and Central America. Their secondarily evolved small size and pointed claws allow them to cling to vertical trunks of a large diameter.
Léo Botton-Divet, John A. Nyakatura
doaj   +1 more source

The Evolution of Primate Short-Term Memory [PDF]

open access: yesAnimal Behavior and Cognition, 2022
Short-term memory is implicated in a range of cognitive abilities and is critical for understanding primate cognitive evolution. To investigate the effects of phylogeny, ecology and sociality on short-term memory, we tested the largest and most diverse ...
ManyPrimates   +83 more
doaj   +1 more source

HERV-W group evolutionary history in non-human primates: characterization of ERV-W orthologs in Catarrhini and related ERV groups in Platyrrhini

open access: yesBMC Evolutionary Biology, 2018
Background The genomes of all vertebrates harbor remnants of ancient retroviral infections, having affected the germ line cells during the last 100 million years.
Nicole Grandi   +4 more
doaj   +1 more source

Neotropical primate evolution and phylogenetic reconstruction using chromosomal data

open access: yesThe European Zoological Journal, 2017
Platyrrhini are a group of Neotropical primates living in central and south America, and have been extensively studied through morphological and molecular data in order to shed light on their phylogeny and evolution.
F. Dumas, S. Mazzoleni
doaj   +1 more source

Mapping CAP-A satellite DNAs by FISH in Sapajus cay paraguay and S. macrocephalus (Platyrrhini, Primates)

open access: yesCaryologia, 2023
Satellite DNAs such as Cap-A sequences are potentially informative taxonomic and phylogenetic markers useful for characterizing primate genomes. They have also been used as cytogenetic markers facilitating species identification in many taxa. The aim of
Francesca Dumas, Simona Ceraulo
doaj   +1 more source

Centromeric enrichment of LINE-1 retrotraposon in two species of South American monkeys Alouatta belzebul and Ateles nancymae (Platyrrhini, Primates)

open access: yesCaryologia, 2022
LINE-1 are retrotransposable elements, a kind of repetitive DNA included in the heterochromatin regions of chromosomes. Repetitive DNA represent one of the major genomic components which role is not still clear challenging genomic assembly.
Francesca Dumas   +2 more
doaj  

Contribution à l’étude de la mobilité de l’hallux et de la phylogénie des primates actuels

open access: yesRevue de Primatologie, 2015
Material and methods: 51 anatomical specimens of non-human primates were dissected (18 embalmed, 33 fresh). The amplitudes of the medial cuneometatarsal and metatarsophalangeal articulations of the first ray of the foot of the various fresh pieces and ...
J Norbert Kuhlmann
doaj   +1 more source

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