Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences
Genome size or C-value is defined as the total amount of DNA contained within a haploid chromosome set and is regarded as a species-specific constant. Speciation among neotropical primates seems to be accompanied by marked quantitative changes in DNA content. A direct correlation between genome size...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_14248581_v135_n1_p33_Fantini |
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todo:paper_14248581_v135_n1_p33_Fantini2023-10-03T16:13:48Z Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences Fantini, L. Mudry, M.D. Nieves, M. C-Value Cebus Genome Heterochromatin Hybrid Interspecies comparative genomic hybridization DNA article comparative genomic hybridization DNA extraction DNA probe female genome size nonhuman nucleic acid analysis Platyrrhini priority journal taxonomy Animals Cebus Chimera Chromosome Banding Chromosomes Comparative Genomic Hybridization Crosses, Genetic Cytogenetics DNA Female Genome Genomics Heterochromatin Karyotyping Male Repetitive Sequences, Nucleic Acid Sample Size Species Specificity Cebus Cebus apella Cebus libidinosus Platyrrhini Primates Genome size or C-value is defined as the total amount of DNA contained within a haploid chromosome set and is regarded as a species-specific constant. Speciation among neotropical primates seems to be accompanied by marked quantitative changes in DNA content. A direct correlation between genome size and the presence of heterochromatin has also been proposed. In this work, we analyzed the genome of a female fertile hybrid between Cebus libidinosus and C. nigritus using interspecies comparative genomic hybridization (iCGH), in order to detect quantitative differences between the hybrid and the parental genomes. We also estimated the genome sizes of C. libidinosus and C. nigritus. Both species, considered subspecies of C. apella until 2001, have a highly homologous karyotype but are easily distinguishable at the chromosomal level due to the noncentromeric heterochromatin block on C. libidinosus chromosome 11. Our findings on C-value quantification support the species status for C. libidinosus and C. nigritus, each having a different genome size. The iCGH analysis of the hybrid revealed quantitative differences in comparison to both parental species. The hybrid genome contains a greater amount of DNA in the heterochromatic blocks related to those in the genomes of both parental species. In view of observations in previous and the present work, some hypotheses about genome dynamics of neotropical primates are proposed and discussed. Copyright © 2011 S. Karger AG, Basel. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14248581_v135_n1_p33_Fantini |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
C-Value Cebus Genome Heterochromatin Hybrid Interspecies comparative genomic hybridization DNA article comparative genomic hybridization DNA extraction DNA probe female genome size nonhuman nucleic acid analysis Platyrrhini priority journal taxonomy Animals Cebus Chimera Chromosome Banding Chromosomes Comparative Genomic Hybridization Crosses, Genetic Cytogenetics DNA Female Genome Genomics Heterochromatin Karyotyping Male Repetitive Sequences, Nucleic Acid Sample Size Species Specificity Cebus Cebus apella Cebus libidinosus Platyrrhini Primates |
| spellingShingle |
C-Value Cebus Genome Heterochromatin Hybrid Interspecies comparative genomic hybridization DNA article comparative genomic hybridization DNA extraction DNA probe female genome size nonhuman nucleic acid analysis Platyrrhini priority journal taxonomy Animals Cebus Chimera Chromosome Banding Chromosomes Comparative Genomic Hybridization Crosses, Genetic Cytogenetics DNA Female Genome Genomics Heterochromatin Karyotyping Male Repetitive Sequences, Nucleic Acid Sample Size Species Specificity Cebus Cebus apella Cebus libidinosus Platyrrhini Primates Fantini, L. Mudry, M.D. Nieves, M. Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| topic_facet |
C-Value Cebus Genome Heterochromatin Hybrid Interspecies comparative genomic hybridization DNA article comparative genomic hybridization DNA extraction DNA probe female genome size nonhuman nucleic acid analysis Platyrrhini priority journal taxonomy Animals Cebus Chimera Chromosome Banding Chromosomes Comparative Genomic Hybridization Crosses, Genetic Cytogenetics DNA Female Genome Genomics Heterochromatin Karyotyping Male Repetitive Sequences, Nucleic Acid Sample Size Species Specificity Cebus Cebus apella Cebus libidinosus Platyrrhini Primates |
| description |
Genome size or C-value is defined as the total amount of DNA contained within a haploid chromosome set and is regarded as a species-specific constant. Speciation among neotropical primates seems to be accompanied by marked quantitative changes in DNA content. A direct correlation between genome size and the presence of heterochromatin has also been proposed. In this work, we analyzed the genome of a female fertile hybrid between Cebus libidinosus and C. nigritus using interspecies comparative genomic hybridization (iCGH), in order to detect quantitative differences between the hybrid and the parental genomes. We also estimated the genome sizes of C. libidinosus and C. nigritus. Both species, considered subspecies of C. apella until 2001, have a highly homologous karyotype but are easily distinguishable at the chromosomal level due to the noncentromeric heterochromatin block on C. libidinosus chromosome 11. Our findings on C-value quantification support the species status for C. libidinosus and C. nigritus, each having a different genome size. The iCGH analysis of the hybrid revealed quantitative differences in comparison to both parental species. The hybrid genome contains a greater amount of DNA in the heterochromatic blocks related to those in the genomes of both parental species. In view of observations in previous and the present work, some hypotheses about genome dynamics of neotropical primates are proposed and discussed. Copyright © 2011 S. Karger AG, Basel. |
| format |
JOUR |
| author |
Fantini, L. Mudry, M.D. Nieves, M. |
| author_facet |
Fantini, L. Mudry, M.D. Nieves, M. |
| author_sort |
Fantini, L. |
| title |
Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| title_short |
Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| title_full |
Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| title_fullStr |
Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| title_full_unstemmed |
Genome size of two cebus species (Primates: Platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| title_sort |
genome size of two cebus species (primates: platyrrhini) with a fertile hybrid and their quantitative genomic differences |
| url |
http://hdl.handle.net/20.500.12110/paper_14248581_v135_n1_p33_Fantini |
| work_keys_str_mv |
AT fantinil genomesizeoftwocebusspeciesprimatesplatyrrhiniwithafertilehybridandtheirquantitativegenomicdifferences AT mudrymd genomesizeoftwocebusspeciesprimatesplatyrrhiniwithafertilehybridandtheirquantitativegenomicdifferences AT nievesm genomesizeoftwocebusspeciesprimatesplatyrrhiniwithafertilehybridandtheirquantitativegenomicdifferences |
| _version_ |
1807317357737017344 |