Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil
Species in the subgenus Artibeus Leach, 1821 are widely distributed in Brazil. Conserved karyotypes characterize the group with identical diploid number and chromosome morphology. Recent studies suggested that the heterochromatin distribution and accumulation patterns can vary among species. In orde...
| Autor principal: | Souza, Érica Martinha Silva de |
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| Outros Autores: | Gross, Maria Claudia, Silva, Carlos Eduardo Faresin e, Sotero-Caio, Cibele Gomes, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Comparative Cytogenetics
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/15769 |
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oai:repositorio:1-15769 |
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oai:repositorio:1-15769 Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil Souza, Érica Martinha Silva de Gross, Maria Claudia Silva, Carlos Eduardo Faresin e Sotero-Caio, Cibele Gomes Feldberg, Eliana Species in the subgenus Artibeus Leach, 1821 are widely distributed in Brazil. Conserved karyotypes characterize the group with identical diploid number and chromosome morphology. Recent studies suggested that the heterochromatin distribution and accumulation patterns can vary among species. In order to assess whether variation can also occur within species, we have analyzed the chromosomal distribution of constitutive heterochromatin in A. planirostris (Spix, 1823) and A. lituratus (Olfers, 1818) from Central Amazon (North Brazil) and contrasted our findings with those reported for other localities in Brazil. In addition, Ag-NOR staining and FISH with 18S rDNA, telomeric, and LINE-1 probes were performed to assess the potential role that these different repetitive markers had in shaping the current architecture of heterochromatic regions. Both species presented interindividual variation of constitutive heterochromatin. In addition, in A. planirostris the centromeres of most chromosomes are enriched with LINE-1, colocated with pericentromeric heterochromatin blocks. Overall, our data indicate that amplification and differential distribution of the investigated repetitive DNAs might have played a significant role in shaping the chromosome architecture of the subgenus Artibeus. © érica M. Silva de Souza. 2020-05-18T20:46:08Z 2020-05-18T20:46:08Z 2017 Artigo https://repositorio.inpa.gov.br/handle/1/15769 10.3897/CompCytogen.v11i4.14562 en Volume 11, Número 4, Pags. 613-626 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Comparative Cytogenetics |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| description |
Species in the subgenus Artibeus Leach, 1821 are widely distributed in Brazil. Conserved karyotypes characterize the group with identical diploid number and chromosome morphology. Recent studies suggested that the heterochromatin distribution and accumulation patterns can vary among species. In order to assess whether variation can also occur within species, we have analyzed the chromosomal distribution of constitutive heterochromatin in A. planirostris (Spix, 1823) and A. lituratus (Olfers, 1818) from Central Amazon (North Brazil) and contrasted our findings with those reported for other localities in Brazil. In addition, Ag-NOR staining and FISH with 18S rDNA, telomeric, and LINE-1 probes were performed to assess the potential role that these different repetitive markers had in shaping the current architecture of heterochromatic regions. Both species presented interindividual variation of constitutive heterochromatin. In addition, in A. planirostris the centromeres of most chromosomes are enriched with LINE-1, colocated with pericentromeric heterochromatin blocks. Overall, our data indicate that amplification and differential distribution of the investigated repetitive DNAs might have played a significant role in shaping the chromosome architecture of the subgenus Artibeus. © érica M. Silva de Souza. |
| format |
Artigo |
| author |
Souza, Érica Martinha Silva de |
| spellingShingle |
Souza, Érica Martinha Silva de Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| author2 |
Gross, Maria Claudia Silva, Carlos Eduardo Faresin e Sotero-Caio, Cibele Gomes Feldberg, Eliana |
| author2Str |
Gross, Maria Claudia Silva, Carlos Eduardo Faresin e Sotero-Caio, Cibele Gomes Feldberg, Eliana |
| title |
Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| title_short |
Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| title_full |
Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| title_fullStr |
Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| title_full_unstemmed |
Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil |
| title_sort |
heterochromatin variation and line-1 distribution in artibeus (chiroptera, phyllostomidae) from central amazon, brazil |
| publisher |
Comparative Cytogenetics |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15769 |
| _version_ |
1787141764267638784 |
| score |
11.755432 |