Eight million years of maintained heterozygosity in chromosome homologs of cercopithecine monkeys

Tolomeo, Doron; Capozzi, Oronzo; Chiatante, Giorgia; Sineo, Luca; Ishida, Takafumi; Archidiacono, Nicoletta; Rocchi, Mariano; Stanyon, Roscoe

doi:10.1007/s00412-020-00731-y

Cited by 1 publication

(2 citation statements)

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“…The 20/21 syntenic association is an apomorphic trait of all Cercopithecini species ( Table 1 ), also present as a polymorphism known as a “tribal-specific” polymorphism [ 14 ]. In C. petaurista , the 20/21 syntenic association is found on chromosome 9 in heterozygosity, as shown here through the paint patterns ( Figure 1 f,g and Figure 2 ) and in agreement with previous banding, painting [ 4 , 5 ], and BAC [ 33 ] data mapping.…”

Section: Discussionsupporting

confidence: 91%

“…Despite the diversity found in the genus, only a few studies have been conducted using painting approaches on the genomic structure of Cercopithecus species; comparisons of chromosomal banding patterns and of whole chromosome probe “paint” mappings have permitted researchers to propose phylogenetic relationships [ 6 , 31 , 32 , 33 , 34 , 35 ], and to show that non-centromeric fissioning and centromere activation and deactivation [ 36 ] are noticeable chromosomal evolutionary mechanisms of the Cercopithecini tribe.…”

Section: Introductionmentioning

confidence: 99%

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Chromosome Painting in Cercopithecus petaurista (Schreber, 1774) Compared to Other Monkeys of the Cercopithecini Tribe (Catarrhini, Primates)

Milioto

Sineo

Dumas

2023

Life

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The Cercopithecini tribe includes terrestrial and arboreal clades whose relationships are controversial, with a high level of chromosome rearrangements. In order to provide new insights on the tribe’s phylogeny, chromosome painting, using the complete set of human syntenic probes, was performed in Cercopithecus petaurista, a representative species of the Cercopithecini tribe. The results show C. petaurista with a highly rearranged karyotype characterized by the fission of human chromosomes 1, 2, 3, 5, 6, 8, 11, and 12. These results compared with the literature data permit us to confirm the monophyly of the Cercopithecini tribe (fissions of chromosomes 5 and 6), as previously proposed by chromosomal and molecular data. Furthermore, we support the monophyly of the strictly arboreal Cercopithecus clade, previously proposed by the molecular approach, identifying chromosomal synapomorphies (fissions of chromosomes 1, 2, 3, 11, 12). We also add additional markers that can be useful for deciphering arboreal Cercopithecini phylogeny. For example, the fission of chromosome 8 is synapomorphy linking C. petaurista, C. erythrogaster, and C. nictitans among the arboreal species. Finally, a telomeric sequence probe was mapped on C. petaurista, showing only classic telomeric signals and giving no support to a previous hypothesis regarding a link between interspersed telomeric sequences in high rearranged genomes.

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Section: Discussionsupporting

confidence: 91%