Results 21 to 30 of about 27,076 (199)

The origin of the RB1 imprint. [PDF]

open access: yesPLoS ONE, 2013
The human RB1 gene is imprinted due to a differentially methylated CpG island in intron 2. This CpG island is part of PPP1R26P1, a truncated retrocopy of PPP1R26, and serves as a promoter for an alternative RB1 transcript.
Deniz Kanber   +6 more
doaj   +1 more source

A family case of fertile human 45,X,psu dic(15;Y) males [PDF]

open access: yes, 2006
We report on a familial case including four male probands from three generations with a 45,X,psu dic(15;Y)(p11.2;q12) karyotype. 45,X is usually associated with a female phenotype and only rarely with maleness, due to translocation of small Y chromosomal
Andersson M   +29 more
core   +1 more source

The evolution and biological correlates of hand preferences in anthropoid primates

open access: yeseLife, 2022
The evolution of human right-handedness has been intensively debated for decades. Manual lateralization patterns in non-human primates have the potential to elucidate evolutionary determinants of human handedness, but restricted species samples and ...
Kai R Caspar   +4 more
doaj   +1 more source

Phylogenetic studies of the genus Cebus (Cebidae-Primates) using chromosome painting and G-banding

open access: yesBMC Evolutionary Biology, 2008
Background Chromosomal painting, using whole chromosome probes from humans and Saguinus oedipus, was used to establish karyotypic divergence among species of the genus Cebus, including C. olivaceus, C. albifrons, C. apella robustus and C.
Pissinatti A   +5 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

Apocrine glands in the eyelid of primates contribute to the ocular host defense [PDF]

open access: yes, 2004
Apocrine glands of Moll are regular components of primate eyelids. We studied the distribution and localization of these glands in three different primate species, the common marmoset, the rhesus monkey, and the hamadryas baboon.
Stoeckelhuber, B. M.   +2 more
core   +1 more source

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

Chewing on the trees: Constraintsand adaptation in the evolution of the primate mandible [PDF]

open access: yes, 2015
Chewing on different food types is a demanding biological function. The classic assumption in studying the shape of feeding apparatuses is that animals are what they eat, meaning that adaptation to different food items accounts for most of their ...
Adams   +57 more
core   +1 more source

Molecular Phylogenetics of Aotus (Platyrrhini, Cebidae)

open access: yesInternational Journal of Primatology, 2011
The accurate identification of taxa of Aotus is essential for 1) the development of precise biomedical assays, 2) the determination of potential illegal traffic of this genus, and 3) conservation. Although many studies have contributed to what we know about the phylogenetics of Aotus, none used a sufficiently large number of samples to clarify its ...
Ruiz García, Manuel   +9 more
openaire   +2 more sources

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