| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Clima Temperado; Embrapa Milho e Sorgo; Embrapa Recursos Genéticos e Biotecnologia. |
|
Data corrente: |
29/03/2021 |
|
Data da última atualização: |
01/04/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MEDEIROS, M. B. de; VALLS, J. F. M.; ABREU, A. G. de; HEIDEN, G.; RIBEIRO-SILVA, S.; JOSE, S. C. B. R.; SANTOS, I. R. I.; PASSOS, A. M. A. dos; BURLE, M. L. |
|
Afiliação: |
MARCELO BRILHANTE DE MEDEIROS, Cenargen; JOSE FRANCISCO MONTENEGRO VALLS, Cenargen; ALUANA GONCALVES DE ABREU, CNPAF; GUSTAVO HEIDEN, CPACT; SUELMA RIBEIRO-SILVA, Instituto Chico Mendes de Conservação da Biodiversidade; SOLANGE CARVALHO B ROVERI JOSE, Cenargen; IZULME RITA IMACULADA SANTOS, Cenargen; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; MARILIA LOBO BURLE, Cenargen. |
|
Título: |
Status of the ex situ and in situ conservation of brazilian crop wild relatives of rice, potato, sweet potato, and finger millet: filling the gaps of germplasm collections. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Agronomy, v. 11, article 638, 2021. |
|
ISSN: |
2073-4395 |
|
DOI: |
https://doi.org/10.3390/agronomy11040638 |
|
Idioma: |
Inglês |
|
Conteúdo: |
This study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled "Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives" supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O?Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa's ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country. MenosThis study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled "Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives" supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O?Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the to... Mostrar Tudo |
|
Palavras-Chave: |
Banco de genes; Conservação ex situ; Conservação in situ; Crop wild relatives; Gap analysis. |
|
Thesagro: |
Arroz; Banco de Germoplasma; Batata; Batata Doce; Genética Vegetal; Germoplasma; Milheto; Oryza Sativa; Variedade. |
|
Thesaurus Nal: |
Ex situ conservation; Gene banks; Germplasm; In situ conservation; Potatoes; Rice; Sweet potatoes. |
|
Categoria do assunto: |
--
G Melhoramento Genético |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222370/1/agronomy-11-00638-v2.pdf
|
|
Marc: |
LEADER 03647naa a2200493 a 4500
001 2130919
005 2021-04-01
008 2021 bl uuuu u00u1 u #d
022 $a2073-4395
024 7 $ahttps://doi.org/10.3390/agronomy11040638$2DOI
100 1 $aMEDEIROS, M. B. de
245 $aStatus of the ex situ and in situ conservation of brazilian crop wild relatives of rice, potato, sweet potato, and finger millet$bfilling the gaps of germplasm collections.$h[electronic resource]
260 $c2021
520 $aThis study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled "Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives" supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O?Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa's ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country.
650 $aEx situ conservation
650 $aGene banks
650 $aGermplasm
650 $aIn situ conservation
650 $aPotatoes
650 $aRice
650 $aSweet potatoes
650 $aArroz
650 $aBanco de Germoplasma
650 $aBatata
650 $aBatata Doce
650 $aGenética Vegetal
650 $aGermoplasma
650 $aMilheto
650 $aOryza Sativa
650 $aVariedade
653 $aBanco de genes
653 $aConservação ex situ
653 $aConservação in situ
653 $aCrop wild relatives
653 $aGap analysis
700 1 $aVALLS, J. F. M.
700 1 $aABREU, A. G. de
700 1 $aHEIDEN, G.
700 1 $aRIBEIRO-SILVA, S.
700 1 $aJOSE, S. C. B. R.
700 1 $aSANTOS, I. R. I.
700 1 $aPASSOS, A. M. A. dos
700 1 $aBURLE, M. L.
773 $tAgronomy$gv. 11, article 638, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Café. |
|
Data corrente: |
25/01/2022 |
|
Data da última atualização: |
11/04/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
CINTRA, L. A.; SOUZA, T. B. de; PARTEKA, L. M.; BARRETO, L. M.; PEREIRA, L. F. P.; GAETA, M. L.; GUYOT, R.; VANZELA, A. L. L. |
|
Afiliação: |
LEONARDO ADABO CINTRA, UNIVERSIDADE ESTADUAL DE LONDRINA; THAÍSSA BOLDIERI DE SOUZA, UNIVERSIDADE ESTADUAL DE LONDRINA; LETÍCIA MARIA PARTEKA, UNIVERSIDADE ESTADUAL DE LONDRINA; LUCAS MESQUITA BARRETO, UNIVERSIDADE ESTADUAL DE LONDRINA; LUIZ FILIPE PROTASIO PEREIRA, CNPCa; MARCOS LETAIF GAETA, UNIVERSIDADE ESTADUAL DE LONDRINA; ROMAIN GUYOT, CIRAD; ANDRÉ LUÍS LAFORGA VANZELA, UNIVERSIDADE ESTADUAL DE LONDRINA. |
|
Título: |
An 82 bp tandem repeat family typical of 3' non-coding end of Gypsy/TAT LTR retrotransposons is conserved in Coffea spp. pericentromeres. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Genome, v.65, n. 3, p. 137-181, 2021. |
|
DOI: |
https://doi.org/10.1139/gen-2021-0045 |
|
Idioma: |
Inglês |
|
Notas: |
Date of Electronic Publication: 2021 Nov 02. |
|
Conteúdo: |
Coffea spp. chromosomes are very small and accumulate a variety of repetitive DNA families around the centromeres. However, the proximal regions of Coffea chromosomes remain poorly understood, especially regarding the nature and organisation of the sequences. Taking advantage of the genome sequences of C. arabica (2n = 44), C. canephora, and C. eugenioides (C. arabica progenitors with 2n = 22) and good coverage genome sequencing of dozens of other wild Coffea spp., repetitive DNA sequences were identified, and the genomes were compared to decipher particularities of pericentromeric structures. The searches revealed a short tandem repeat (82 bp length) typical of Gypsy/TAT LTR retrotransposons, named Coffea_sat11. This repeat organises clusters with fragments of other transposable elements, comprising regions of non-coding RNA production. Cytogenomic analyses showed that Coffea_sat11 extends from the pericentromeres towards the middle of the chromosomal arms. This arrangement was observed in the allotetraploid C. arabica chromosomes, as well as in its progenitors. This study improves our understanding of the role of the Gypsy/TAT LTR retrotransposon lineage in the organisation of Coffea pericentromeres, as well as the conservation of Coffea_sat11 within the genus. The relationships between fragments of other transposable elements and the functional aspects of these sequences on the pericentromere chromatin were also evaluated. Highlights: A scattered short tandem repeat, typical of Gypsy/TAT LTR retrotransposons, associated with several fragments of other transposable elements, accumulates in the pericentromeres of Coffea chromosomes. This arrangement is preserved in all clades of the genus and appears to have a strong regulatory role in the organisation of chromatin around centromeres. MenosCoffea spp. chromosomes are very small and accumulate a variety of repetitive DNA families around the centromeres. However, the proximal regions of Coffea chromosomes remain poorly understood, especially regarding the nature and organisation of the sequences. Taking advantage of the genome sequences of C. arabica (2n = 44), C. canephora, and C. eugenioides (C. arabica progenitors with 2n = 22) and good coverage genome sequencing of dozens of other wild Coffea spp., repetitive DNA sequences were identified, and the genomes were compared to decipher particularities of pericentromeric structures. The searches revealed a short tandem repeat (82 bp length) typical of Gypsy/TAT LTR retrotransposons, named Coffea_sat11. This repeat organises clusters with fragments of other transposable elements, comprising regions of non-coding RNA production. Cytogenomic analyses showed that Coffea_sat11 extends from the pericentromeres towards the middle of the chromosomal arms. This arrangement was observed in the allotetraploid C. arabica chromosomes, as well as in its progenitors. This study improves our understanding of the role of the Gypsy/TAT LTR retrotransposon lineage in the organisation of Coffea pericentromeres, as well as the conservation of Coffea_sat11 within the genus. The relationships between fragments of other transposable elements and the functional aspects of these sequences on the pericentromere chromatin were also evaluated. Highlights: A scattered short tandem repeat, typi... Mostrar Tudo |
|
Thesaurus NAL: |
Chromosomes; Coffea; DNA probes; Genome. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02675naa a2200277 a 4500
001 2139296
005 2022-04-11
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1139/gen-2021-0045$2DOI
100 1 $aCINTRA, L. A.
245 $aAn 82 bp tandem repeat family typical of 3' non-coding end of Gypsy/TAT LTR retrotransposons is conserved in Coffea spp. pericentromeres.$h[electronic resource]
260 $c2021
500 $aDate of Electronic Publication: 2021 Nov 02.
520 $aCoffea spp. chromosomes are very small and accumulate a variety of repetitive DNA families around the centromeres. However, the proximal regions of Coffea chromosomes remain poorly understood, especially regarding the nature and organisation of the sequences. Taking advantage of the genome sequences of C. arabica (2n = 44), C. canephora, and C. eugenioides (C. arabica progenitors with 2n = 22) and good coverage genome sequencing of dozens of other wild Coffea spp., repetitive DNA sequences were identified, and the genomes were compared to decipher particularities of pericentromeric structures. The searches revealed a short tandem repeat (82 bp length) typical of Gypsy/TAT LTR retrotransposons, named Coffea_sat11. This repeat organises clusters with fragments of other transposable elements, comprising regions of non-coding RNA production. Cytogenomic analyses showed that Coffea_sat11 extends from the pericentromeres towards the middle of the chromosomal arms. This arrangement was observed in the allotetraploid C. arabica chromosomes, as well as in its progenitors. This study improves our understanding of the role of the Gypsy/TAT LTR retrotransposon lineage in the organisation of Coffea pericentromeres, as well as the conservation of Coffea_sat11 within the genus. The relationships between fragments of other transposable elements and the functional aspects of these sequences on the pericentromere chromatin were also evaluated. Highlights: A scattered short tandem repeat, typical of Gypsy/TAT LTR retrotransposons, associated with several fragments of other transposable elements, accumulates in the pericentromeres of Coffea chromosomes. This arrangement is preserved in all clades of the genus and appears to have a strong regulatory role in the organisation of chromatin around centromeres.
650 $aChromosomes
650 $aCoffea
650 $aDNA probes
650 $aGenome
700 1 $aSOUZA, T. B. de
700 1 $aPARTEKA, L. M.
700 1 $aBARRETO, L. M.
700 1 $aPEREIRA, L. F. P.
700 1 $aGAETA, M. L.
700 1 $aGUYOT, R.
700 1 $aVANZELA, A. L. L.
773 $tGenome$gv.65, n. 3, p. 137-181, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Café (CNPCa) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
