Application of molecular cytogenetics for chromosomal evolution of the Lemuriformes (Prosimians)
| Autor: | S. Warter, Marcel Hauwy, Y. Rumpler, Bernard Dutrillaux |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Biology
Subspecies Cheirogaleidae Chromosome Painting Evolution Molecular Molecular cytogenetics Lemuridae Phylogenetics Sequence Homology Nucleic Acid Genetics Animals Chromosomes Human Humans Molecular Biology Metaphase Phylogeny Genetics (clinical) Blood Cells Phylogenetic tree Chromosome Karyotype Fibroblasts biology.organism_classification Chromosomes Mammalian Strepsirhini Evolutionary biology Karyotyping Cytogenetic Analysis DNA Probes |
| Zdroj: | Cytogenetic and Genome Research. 108:197-203 |
| ISSN: | 1424-859X 1424-8581 |
| Popis: | R-banding chromosomal studies of 21 species of Lemuriformes allowed us to reconstruct the presumed ancestral karyotype of all the Lemuriformes except for Daubentoniidae and permitted the construction of their phylogenetic tree. Chromosome painting with fluorescently labeled heterologous DNA probes permitted comparative chromosome maps to be established. The Zoo-FISH method was used to reassess the karyotypes of 22 species or subspecies. While our results largely confirm the previous reconstruction of the ancestral karyotype, they resulted in a modification of the previously established phylogenetic tree. The Daubentoniidae emerged first followed by the divergence of the families Cheirogaleidae, Indriidae, Lepilemuridae and Lemuridae. Eight chromosome rearrangements occurred in all Lemuriformes except for Daubentoniidae in the common trunk. The present findings do not allow us to propose the occurrence of any rearrangement common to Daubentoniidae and other Lemuriformes, and probably other Prosimii. Conserved syntenies previously described in various mammalian orders were also conserved, while others were specific to the Lemuriformes. |
| Databáze: | OpenAIRE |
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