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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
07/04/2021 |
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Data da última atualização: |
07/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SADER, M.; VAIO, M.; SANTOS, L. A. C.; DORNELAS, M. C.; VIEIRA, M. L. C.; MELO, N. F. de; PEDROSA-HARAND, A. |
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Afiliação: |
MARIELA SADER; MAGDALENA VAIO; LUIZ AUGUSTO CAUZ SANTOS; MARCELO CARNIER DORNELAS; MARIA LUCIA CARNEIRO VIEIRA; NATONIEL FRANKLIN DE MELO, CPATSA; ANDREA PEDROSA-HARAND. |
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Título: |
Large vs small genomes in Passiflora: the influence of the mobilome and the satellitome. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Planta, v. 253, n. 4, 2021. |
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DOI: |
https://doi.org/10.1007/s00425-021-03598-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Repetitive sequences are ubiquitous and fast-evolving elements responsible for size variation and large-scale organization of plant genomes. Within Passifora genus, a tenfold variation in genome size, not attributed to polyploidy, is known. Here, we applied a combined in silico and cytological approach to study the organization and diversifcation of repetitive elements in three species of this genus representing its known range in genome size variation. Sequences were classifed in terms of type and repetitiveness and the most abundant were mapped to chromosomes. We identifed long terminal repeat (LTR) retrotransposons as the most abundant elements in the three genomes, showing a considerable variation among species. Satellite DNAs (satDNAs) were less representative, but highly diverse between subgenera. Our results clearly confrm that the largest genome species (Passifora quadrangularis) presents a higher accumulation of repetitive DNA sequences, specially Angela and Tekay elements, making up most of its genome. Passifora cincinnata, with intermediate genome and from the same subgenus, showed similarity with P. quadrangularis regarding the families of repetitive DNA sequences, but in diferent proportions. On the other hand, Passifora organensis, the smallest genome, from a diferent subgenus, presented greater diversity and the highest proportion of satDNA. Altogether, our data indicates that while large genomes evolved by an accumulation of retrotransposons, the smallest genome known for the genus has evolved by diversifcation of diferent repeat types, particularly satDNAs. MenosRepetitive sequences are ubiquitous and fast-evolving elements responsible for size variation and large-scale organization of plant genomes. Within Passifora genus, a tenfold variation in genome size, not attributed to polyploidy, is known. Here, we applied a combined in silico and cytological approach to study the organization and diversifcation of repetitive elements in three species of this genus representing its known range in genome size variation. Sequences were classifed in terms of type and repetitiveness and the most abundant were mapped to chromosomes. We identifed long terminal repeat (LTR) retrotransposons as the most abundant elements in the three genomes, showing a considerable variation among species. Satellite DNAs (satDNAs) were less representative, but highly diverse between subgenera. Our results clearly confrm that the largest genome species (Passifora quadrangularis) presents a higher accumulation of repetitive DNA sequences, specially Angela and Tekay elements, making up most of its genome. Passifora cincinnata, with intermediate genome and from the same subgenus, showed similarity with P. quadrangularis regarding the families of repetitive DNA sequences, but in diferent proportions. On the other hand, Passifora organensis, the smallest genome, from a diferent subgenus, presented greater diversity and the highest proportion of satDNA. Altogether, our data indicates that while large genomes evolved by an accumulation of retrotransposons, the smallest gen... Mostrar Tudo |
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Palavras-Chave: |
Escumação do genma; Evolução cromossmica; SatDNA. |
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Thesagro: |
Genoma; Maracujá; Passiflora Edulis. |
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Thesaurus Nal: |
Passion fruits; Retrotransposons. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02457naa a2200301 a 4500
001 2131125
005 2021-04-07
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00425-021-03598-0$2DOI
100 1 $aSADER, M.
245 $aLarge vs small genomes in Passiflora$bthe influence of the mobilome and the satellitome.$h[electronic resource]
260 $c2021
520 $aRepetitive sequences are ubiquitous and fast-evolving elements responsible for size variation and large-scale organization of plant genomes. Within Passifora genus, a tenfold variation in genome size, not attributed to polyploidy, is known. Here, we applied a combined in silico and cytological approach to study the organization and diversifcation of repetitive elements in three species of this genus representing its known range in genome size variation. Sequences were classifed in terms of type and repetitiveness and the most abundant were mapped to chromosomes. We identifed long terminal repeat (LTR) retrotransposons as the most abundant elements in the three genomes, showing a considerable variation among species. Satellite DNAs (satDNAs) were less representative, but highly diverse between subgenera. Our results clearly confrm that the largest genome species (Passifora quadrangularis) presents a higher accumulation of repetitive DNA sequences, specially Angela and Tekay elements, making up most of its genome. Passifora cincinnata, with intermediate genome and from the same subgenus, showed similarity with P. quadrangularis regarding the families of repetitive DNA sequences, but in diferent proportions. On the other hand, Passifora organensis, the smallest genome, from a diferent subgenus, presented greater diversity and the highest proportion of satDNA. Altogether, our data indicates that while large genomes evolved by an accumulation of retrotransposons, the smallest genome known for the genus has evolved by diversifcation of diferent repeat types, particularly satDNAs.
650 $aPassion fruits
650 $aRetrotransposons
650 $aGenoma
650 $aMaracujá
650 $aPassiflora Edulis
653 $aEscumação do genma
653 $aEvolução cromossmica
653 $aSatDNA
700 1 $aVAIO, M.
700 1 $aSANTOS, L. A. C.
700 1 $aDORNELAS, M. C.
700 1 $aVIEIRA, M. L. C.
700 1 $aMELO, N. F. de
700 1 $aPEDROSA-HARAND, A.
773 $tPlanta$gv. 253, n. 4, 2021.
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Embrapa Semiárido (CPATSA) |
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| 10. |  | SCHAFFERT, R. E. The use of sorghum for food in Brazil. In: GOMEZ, M. I.; HOUSE, L. R.; ROONEY, L. W.; DENDY, D. A. V. Utilization of sorghum and millets. Patancheru: ICRISAT, 1992. p. 95-97.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 16. | | SCHAFFERT, R. E.; RODRIGUES, J. A. S. Fluxo gênico em sorgo. In: KARAM, D.; MAGALHÃES, P. C. (Ed.). Eficiência nas cadeias produtivas e o abastecimento global. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2014. cap. 26, p. 279-299.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 537 | |
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