0000000001278714
AUTHOR
Barbara Picone
showing 21 related works from this author
PHYLOGENOMIC OF PROSIMIANS: A CLADISTIC APPROACH
2009
What can chromosomes tell us about the origin of primates?
2011
Evidence of a chromosomal polymorphism unique to Cercopithecini. A key factor in the Tribe definition ?
2015
WILLIAMS-BEUREN MAPPING IN CALLITHRIX ARGENTATA, CALLICEBUS CUPREUS AND ALOUATTA CARAYA INDICATES DIFFERENT PATTERNS OF CHROMOSOMAL REARRANGEMENTS IN…
2007
Human chromosome 7 has a complex syntenic origin. It was divided into two segments in both the ancestral primate karyotype and in Platyrrhini. Apparently, a small segment in the ancestral platyrrhine karyotype was associated with HSA5 and the remainder formed a middle-sized submetacentric. We tested the dynamics of platyrrhine chromosomes by hybridizing the locus specific Willams-Beuren probe (7q 11.23, 450 kb) to chromosomes of representative species from the three families of the New World monkeys recently proposed by molecular genomics: Cebidae, Callithrix argentata (bare ear marmoset or silvery marmoset, 2n = 44); Pitheciidae, Callicebus cupreus [red titi monkey, or coppery monkey, 2n =…
Exploring Evolution in Ceboidea (Platyrrhini, Primates) by Williams-Beuren Probe (HSA 7q11.23) Chromosome Mapping
2007
The ancestral platyrrhine karyotype was characterised by a syntenic association of human 5 and a small segment of human 7 orthologues. This large syntenic association has undergone numerous rearrangements in various phylogenetic lines. We used a locus-specific molecular cytogenetic approach to study the chromosomal evolution of the human 7q11.23 orthologous sequences (William-Beuren syndrome, WS) in various Ceboidea (Platyrrhini) species. The fluorescent in situ hybridisation of the WS probe revealed a two-way pattern of chromosomal organisation that suggests various evolutionary scenarios. The first pattern (seen in Callimico and Saimiri ) includes a fairly simple disruption of the 7/5 syn…
The Phylogenetic position of Daubentonia madagascariensis (Gmelin, 1788; primates, Strepsirhini) as revealed by chromosomal analysis
2012
One of the major topics in primate evolution is the phylogenetic position of the bizarre Daubentonia madagascariensis (DMA, aye-aye). The principal points that have been discussed for many decades are whether the aye-aye is: (i) the sister group of primates; (ii) the sister group of strepsirhines; or (iii) the sister group of lemurs. Very little is known about Daubentonia evolution, particularly on the chromosomal background. The present report focuses on the chromosomal history of this species. We used available chromosome painting data as the main source to identify conserved chromosomes, chromosomal segments and syntenic associations that have characterized the aye-aye karyotype. The dat…
The evolutionary history of HSA7/16 synteny in vertebrates: a critical interpretation of comparative cytogenetic and genome sequence data
2013
The current work is an in silico study of data from previous publications and genome browsers, on the origin of the human synteny HSA7a/16p. The molecular composition of the chromosomal segments identified as HSA7a/16 and 7b (free or differently associated) is not yet clear. This means that a syntenic association 7/16, which can be detected by an in situ hybridization (FISH) method in different taxa, may not necessarily correspond to those of the same association in different lineages. In silico research, together with comparative cytogenetics, have been applied in order to define the composition of the 7/16 syntenic association. These results allow a confident reconstruction of the synteni…
A Phylogenetic Analysis of Human Syntenies Revealed by Chromosome Painting in Euarchontoglires Orders
2010
To search for cytogenetic signatures that can help to clarify evolutionary affinities among the five orders within the Euarchontoglires clade, we focused on associations of conserved syntenic blocks that have been accumulated in the karyotypes of Primates (Strepsirhini and Haplorhini), five families of Rodentia, Scandentia (Tupaia belangeri), Dermoptera (Galeopterus variegatus) and Lagomorpha (Oryctolagus cuniculus). We examined available chromosome painting data to identify conserved chromosomes and chromosomal segments, and syntenic associations likely to have characterized the ancestral eutherian karyotype. The data set includes 161 characters that have been subjected to a concatenated a…
KARYOTYPE EVOLUTION IN PRIMATES AND RODENTS. PHYLOGENETIC RELATIONSHIP AND CHROMOSOMAL SIGNATURES BY COMPARATIVE CYTOGENETIC APPROACHES
2009
LOOKING FOR CYTOGENETIC SIGNATURES WITHIN EUARCHONTOGLIRES SUPER-CLADE BY ZOO-FISH COMPARATIVE CHROMOSOME PAINTING AND PHYLOGENETIC ANALYSIS
2009
Study of phylogenetic relationship in platyrrhinae by single locus probe mapping
2008
Genome complexity and evolution in primates: the case of human chromosome 7
2006
localizzazione cromosomi ed analisi delle dinaniche evolutive del locus HSA7q11.23 William Beuren nei primati
2007
Preliminary data on cytogenetics and cytotaxonomy of cercopithecus albogularis labiatus (Samango monkey)
2011
phylogeny of Cercopithecini (Primates): new data from mapping locus specific Williams Beuren (HSA7q11.23)probe on Cercopithecus neglectus
2008
Study of the Evolution of locus HSA7q11.23 by mapping the William-Beuren probe on Platyrrine (Primates)
2008
Mapping the Wolf-Hirschhorn (wp 4p16.3) Locus on non-human primates
2008
MOLECULAR CYTOGENETIC APPROACH BY WOLF-HIRSCHHORN PROBE-MAPPING AND OTHERS BAC PROBES TO STUDY GENOME EVOLUTION IN PRIMATES
2009
A cladistic approach to testing phylogenomic evolution in Strepsirhines
2010
HUMAN CHROMOSOME 4 SYNTENIC ASSOCIATIONS IN PLACENTAL MAMMALS
2009
Preliminary data on cytogenetics and cytotaxonomy of Cercopithecus albogoularis labiatus (Samango monkey)
2010
Preliminary data on cytogenetics and cytotaxonomy of Cercopithecus albogoularis labiatus (Samango monkey) L. Sineo1, M. Roccella1, B. Picone1, R. Stanyon2, F. Genin3 and J. Masters 3 1Dipartimento di Biologia animale, Università di Palermo, Italia; 2Dipartimento di Biologia evoluzionistica, Università di Firenze, Italia; 3Department of Zoology and Entomology, University of Fort Hare, Alice, South Africa The systematic status and phylogenetic relationships of the C. mitis “species group” are contentious. The species group effectively includes very different species (C. nictitans, C. mitis, and C. albogularis) with wide, reciprocally remote distribution in Africa, and high regional variabilit…