Dynamics of Chromosome Evolution across Animals and Plants: Advances, Insights, and Prospects

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Genetics and Genomics".

Deadline for manuscript submissions: closed (1 June 2023) | Viewed by 1760

Special Issue Editors


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Guest Editor
Department of Cell Biology, Faculty of Science, Charles University, 12843 Prague, Czech Republic
Interests: chromosome; chromosomal evolution; sex chromosomes; animal cytogenetics; in situ hybridization; interspecies hybridization; polyploidy; asexuality; Xenopus, Carassius; Sanger sequencing; Next generation sequencing

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Guest Editor
Department of Biology, Federal University of Piauí, Teresina, Piauí, Brazil
Interests: chromosome evolution; karyotype organization; speciation; diversification; comparative cytogenomic mapping; plant cytogenetics; oligonucleiotides; fluorescent in situ hybridization; oligo-FISH

Special Issue Information

Dear Colleagues,

The tempo of chromosomal evolution differs in different species and taxa. What is the cause and consequence of a variability in chromosomal evolution dynamics among species? Chromosomal rearrangements, such as inversions, translocations, duplication, and deletion, could serve as a driver of chromosomal evolution, karyotype organization, and species diversification, helping to physically trace the evolutionary paths within and/or between taxa. For example, when a chromosomal region is translocated on another chromosome, two chromosomes fuse in one, one chromosome undergoes fission onto more fragments, or a chromosomal segment is inverted within single chromosomes with effects in evolution such as recombination suppression or a new speciation event. This issue focuses on the structural changes in both autosomal and sex chromosomes in animals and plants, and on approaches that show how chromosomal evolution can elucidate the dynamics, speciation, and diversification among closely and distantly related species, as well as how chromosomal rearrangements that influence the evolution of sex determination systems and sex differentiation can contribute to the understanding dynamics of chromosomal evolution. Conventional and advanced molecular cytogenetics using different types of specific fluorescent in situ hybridization (FISH) probes, numerous state-of-the-art omics techniques and combinations of them have been used to study chromosome evolution in general, which is the main subject of this issue.

Dr. Martin Knytl
Dr. Lívia Do Vale Martins
Guest Editors

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Keywords

  • chromosomal rearrangements
  • synteny
  • chromosome evolution
  • karyotype organization
  • speciation
  • species’ diversification

Published Papers (1 paper)

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Research

11 pages, 2500 KiB  
Communication
Chromosome Painting in Cercopithecus petaurista (Schreber, 1774) Compared to Other Monkeys of the Cercopithecini Tribe (Catarrhini, Primates)
by Vanessa Milioto, Luca Sineo and Francesca Dumas
Life 2023, 13(5), 1203; https://doi.org/10.3390/life13051203 - 17 May 2023
Viewed by 1115
Abstract
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 [...] Read more.
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. Full article
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