Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family
Boids are primitive snakes from a basal lineage that is widely distributed in Neotropical region. Many of these species are both morphologically and biogeographically divergent, and the relationship among some species remains uncertain even with evolutionary and phylogenetic studies being proposed f...
| Autor principal: | Viana, Patrik Ferreira |
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| Outros Autores: | Braga Ribeiro, Leila, Souza, George Myller, Menezes Chalkidis, Hipocrátes de, Gross, Maria Claudia, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
PLoS ONE
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14681 |
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oai:repositorio:1-14681 |
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oai:repositorio:1-14681 Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family Viana, Patrik Ferreira Braga Ribeiro, Leila Souza, George Myller Menezes Chalkidis, Hipocrátes de Gross, Maria Claudia Feldberg, Eliana Boidae Chromosomal Mapping Clinical Cytotaxonomy Family Gene Amplification Gene Rearrangement Karyotype Neotropics Species Subspecies Telomere Thinking Animals Boidae Chromosome Chromosome Nor Classification Genetics Heterochromatin Karyotype Phylogeny Heterochromatin Ribosome Dna Animalss Boidae Chromosomes Ribosomal Dna Heterochromatin Karyotype Nucleolus Organizer Region Phylogeny Telomere Boids are primitive snakes from a basal lineage that is widely distributed in Neotropical region. Many of these species are both morphologically and biogeographically divergent, and the relationship among some species remains uncertain even with evolutionary and phylogenetic studies being proposed for the group. For a better understanding of the evolutionary relationship between these snakes, we cytogenetically analysed 7 species and 3 subspecies of Neotropical snakes from the Boidae family using different chromosomal markers. The karyotypes of Boa constrictor occidentalis, Corallus hortulanus, Eunectes notaeus, Epicrates cenchria and Epicrates assisi are presented here for the first time with the redescriptions of the karyotypes of Boa constrictor constrictor, B. c. amarali, Eunectes murinus and Epicrates crassus. The three subspecies of Boa, two species of Eunectes and three species of Epicrates exhibit 2n = 36 chromosomes. In contrast, C. hortulanus presented a totally different karyotype composition for the Boidae family, showing 2n = 40 chromosomes with a greater number of macrochromosomes. Furthermore, chromosomal mapping of telomeric sequences revealed the presence of interstitial telomeric sites (ITSs) on many chromosomes in addition to the terminal markings on all chromosomes of all taxa analysed, with the exception of E. notaeus. Thus, we demonstrate that the karyotypes of these snakes are not as highly conserved as previously thought. Moreover, we provide an overview of the current cytotaxonomy of the group. © 2016 Viana et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2020-04-24T17:00:14Z 2020-04-24T17:00:14Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/14681 10.1371/journal.pone.0160274 en Volume 11, Número 8 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf PLoS ONE |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Boidae Chromosomal Mapping Clinical Cytotaxonomy Family Gene Amplification Gene Rearrangement Karyotype Neotropics Species Subspecies Telomere Thinking Animals Boidae Chromosome Chromosome Nor Classification Genetics Heterochromatin Karyotype Phylogeny Heterochromatin Ribosome Dna Animalss Boidae Chromosomes Ribosomal Dna Heterochromatin Karyotype Nucleolus Organizer Region Phylogeny Telomere |
| spellingShingle |
Boidae Chromosomal Mapping Clinical Cytotaxonomy Family Gene Amplification Gene Rearrangement Karyotype Neotropics Species Subspecies Telomere Thinking Animals Boidae Chromosome Chromosome Nor Classification Genetics Heterochromatin Karyotype Phylogeny Heterochromatin Ribosome Dna Animalss Boidae Chromosomes Ribosomal Dna Heterochromatin Karyotype Nucleolus Organizer Region Phylogeny Telomere Viana, Patrik Ferreira Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| topic_facet |
Boidae Chromosomal Mapping Clinical Cytotaxonomy Family Gene Amplification Gene Rearrangement Karyotype Neotropics Species Subspecies Telomere Thinking Animals Boidae Chromosome Chromosome Nor Classification Genetics Heterochromatin Karyotype Phylogeny Heterochromatin Ribosome Dna Animalss Boidae Chromosomes Ribosomal Dna Heterochromatin Karyotype Nucleolus Organizer Region Phylogeny Telomere |
| description |
Boids are primitive snakes from a basal lineage that is widely distributed in Neotropical region. Many of these species are both morphologically and biogeographically divergent, and the relationship among some species remains uncertain even with evolutionary and phylogenetic studies being proposed for the group. For a better understanding of the evolutionary relationship between these snakes, we cytogenetically analysed 7 species and 3 subspecies of Neotropical snakes from the Boidae family using different chromosomal markers. The karyotypes of Boa constrictor occidentalis, Corallus hortulanus, Eunectes notaeus, Epicrates cenchria and Epicrates assisi are presented here for the first time with the redescriptions of the karyotypes of Boa constrictor constrictor, B. c. amarali, Eunectes murinus and Epicrates crassus. The three subspecies of Boa, two species of Eunectes and three species of Epicrates exhibit 2n = 36 chromosomes. In contrast, C. hortulanus presented a totally different karyotype composition for the Boidae family, showing 2n = 40 chromosomes with a greater number of macrochromosomes. Furthermore, chromosomal mapping of telomeric sequences revealed the presence of interstitial telomeric sites (ITSs) on many chromosomes in addition to the terminal markings on all chromosomes of all taxa analysed, with the exception of E. notaeus. Thus, we demonstrate that the karyotypes of these snakes are not as highly conserved as previously thought. Moreover, we provide an overview of the current cytotaxonomy of the group. © 2016 Viana et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| format |
Artigo |
| author |
Viana, Patrik Ferreira |
| author2 |
Braga Ribeiro, Leila Souza, George Myller Menezes Chalkidis, Hipocrátes de Gross, Maria Claudia Feldberg, Eliana |
| author2Str |
Braga Ribeiro, Leila Souza, George Myller Menezes Chalkidis, Hipocrátes de Gross, Maria Claudia Feldberg, Eliana |
| title |
Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| title_short |
Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| title_full |
Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| title_fullStr |
Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| title_full_unstemmed |
Is the karyotype of neotropical boid snakes really conserved? Cytotaxonomy, chromosomal rearrangements and karyotype organization in the Boidae family |
| title_sort |
is the karyotype of neotropical boid snakes really conserved? cytotaxonomy, chromosomal rearrangements and karyotype organization in the boidae family |
| publisher |
PLoS ONE |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/14681 |
| _version_ |
1787144691901267968 |
| score |
11.755432 |