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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
24/02/2015 |
Data da última atualização: |
23/05/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BRAGA, R. M.; SANTANA, M. F.; COSTA, R. V. da; BROMMONSCHENKEL, S. H.; ARAÚJO, E. F. de; QUEIROZ, M. V. de. |
Afiliação: |
RODRIGO VERAS DA COSTA, CNPMS. |
Título: |
Transposable elements belonging to the Tc1-Mariner superfamily are heavily mutated in Colletotrichum graminicola. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Mycologia, New York, v. 106, n. 4, p. 629-641, 2014. |
DOI: |
10.3852/13?262 |
Idioma: |
Inglês |
Conteúdo: |
Transposable elements are ubiquitous and constitute an important source of genetic variation in addition to generating deleterious mutations. Several filamentous fungi are able to defend against transposable elements using RIP(repeat-induced point mutation)-like mechanisms, which induce mutations in duplicated sequences. The sequenced Colletotrichum graminicola genome and the availability of transposable element databases provide an efficient approach for identifying and characterizing transposable elements in this fungus, which was the subject of this study. We identified 132 full-sized Tc1-Mariner transposable elements in the sequenced C. graminicola genome, which were divided into six families. Several putative transposases that have been found in these elements have conserved DDE motifs, but all are interrupted by stop codons. An in silico analysis showed evidence for RIP-generated mutations. The TCg1 element, which was cloned from the Brazilian 2908 m isolate, has a putative transposase sequence with three characteristic conserved motifs. However, this sequence is interrupted by five stop codons. Genomic DNA from various isolates was analyzed by hybridization with an internal region of TCg1. All of the isolates featured transposable elements that were similar to TCg1, and several hybridization profiles were identified. C. graminicola has many Tc1-Mariner transposable elements that have been degenerated by characteristic RIP mutations. It is unlikely that any of the characterized elements are autonomous in the sequenced isolate. The possible existence of active copies in field isolates from Brazil was shown. The TCg1 element is present in severalC. graminicola isolates and is a potentially useful molecular marker for population studies of this phytopathogen. Key words: RIP, transposase, transposon MenosTransposable elements are ubiquitous and constitute an important source of genetic variation in addition to generating deleterious mutations. Several filamentous fungi are able to defend against transposable elements using RIP(repeat-induced point mutation)-like mechanisms, which induce mutations in duplicated sequences. The sequenced Colletotrichum graminicola genome and the availability of transposable element databases provide an efficient approach for identifying and characterizing transposable elements in this fungus, which was the subject of this study. We identified 132 full-sized Tc1-Mariner transposable elements in the sequenced C. graminicola genome, which were divided into six families. Several putative transposases that have been found in these elements have conserved DDE motifs, but all are interrupted by stop codons. An in silico analysis showed evidence for RIP-generated mutations. The TCg1 element, which was cloned from the Brazilian 2908 m isolate, has a putative transposase sequence with three characteristic conserved motifs. However, this sequence is interrupted by five stop codons. Genomic DNA from various isolates was analyzed by hybridization with an internal region of TCg1. All of the isolates featured transposable elements that were similar to TCg1, and several hybridization profiles were identified. C. graminicola has many Tc1-Mariner transposable elements that have been degenerated by characteristic RIP mutations. It is unlikely that any of the char... Mostrar Tudo |
Thesagro: |
Antracnose. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02476naa a2200205 a 4500 001 2009650 005 2017-05-23 008 2014 bl uuuu u00u1 u #d 024 7 $a10.3852/13?262$2DOI 100 1 $aBRAGA, R. M. 245 $aTransposable elements belonging to the Tc1-Mariner superfamily are heavily mutated in Colletotrichum graminicola.$h[electronic resource] 260 $c2014 520 $aTransposable elements are ubiquitous and constitute an important source of genetic variation in addition to generating deleterious mutations. Several filamentous fungi are able to defend against transposable elements using RIP(repeat-induced point mutation)-like mechanisms, which induce mutations in duplicated sequences. The sequenced Colletotrichum graminicola genome and the availability of transposable element databases provide an efficient approach for identifying and characterizing transposable elements in this fungus, which was the subject of this study. We identified 132 full-sized Tc1-Mariner transposable elements in the sequenced C. graminicola genome, which were divided into six families. Several putative transposases that have been found in these elements have conserved DDE motifs, but all are interrupted by stop codons. An in silico analysis showed evidence for RIP-generated mutations. The TCg1 element, which was cloned from the Brazilian 2908 m isolate, has a putative transposase sequence with three characteristic conserved motifs. However, this sequence is interrupted by five stop codons. Genomic DNA from various isolates was analyzed by hybridization with an internal region of TCg1. All of the isolates featured transposable elements that were similar to TCg1, and several hybridization profiles were identified. C. graminicola has many Tc1-Mariner transposable elements that have been degenerated by characteristic RIP mutations. It is unlikely that any of the characterized elements are autonomous in the sequenced isolate. The possible existence of active copies in field isolates from Brazil was shown. The TCg1 element is present in severalC. graminicola isolates and is a potentially useful molecular marker for population studies of this phytopathogen. Key words: RIP, transposase, transposon 650 $aAntracnose 700 1 $aSANTANA, M. F. 700 1 $aCOSTA, R. V. da 700 1 $aBROMMONSCHENKEL, S. H. 700 1 $aARAÚJO, E. F. de 700 1 $aQUEIROZ, M. V. de 773 $tMycologia, New York$gv. 106, n. 4, p. 629-641, 2014.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
31/01/2022 |
Data da última atualização: |
09/03/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
JOSWIG, J. S.; WIRTH, C.; SCHUMAN, M. C.; KATTGE, J.; REU, B.; WRIGHT, I. J.; SIPPEL, S. D.; RÜGER, N.; RICHTER, R.; SCHAEPMAN, M. E.; VAN BODEGOM, P. M.; CORNELISSEN, J. H. C.; DÍAZ, S.; HATTINGH, W. N.; KRAMER, K.; LENS, F.; NIINEMETS, U.; REICH, P. B.; REICHSTEIN, M.; RÖMERMANN, C.; SCHRODT, F.; ANAND, M.; BAHN , M.; BYUN, C.; CAMPETELLA, G.; CERABOLINI, B. E. L.; CRAINE, J. M.; GONZALEZ-MELO, A.; GUTIÉRREZ, A. G.; HE, T.; HIGUCHI, P.; JACTEL, H.; KRAFT, N. J. B.; MINDEN, V.; ONIPCHENKO, V.; PEÑUELAS, J.; PILLAR , V. D.; SOSINSKI JUNIOR, E. E.; SOUDZILOVSKAIA, N. A.; WEIHER, E.; MAHECHA, M. D. |
Afiliação: |
JULIA S. JOSWIG; CHRISTIAN WIRTH; MEREDITH C. SCHUMAN; JENS KATTGE; BJÖRN REU; IAN J. WRIGHT; SEBASTIAN D. SIPPEL; NADJA RÜGER; RONNY RICHTER; MICHAEL E. SCHAEPMAN; PETER M. VAN BODEGOM; J. H. C. CORNELISSEN; SANDRA DÍAZ; WESLEY N. HATTINGH; KOEN KRAMER; FREDERIC LENS; ÜLO NIINEMETS; PETER B. REICH; MARKUS REICHSTEIN; CHRISTINE RÖMERMANN; FRANZISKA SCHRODT; MADHUR ANAND; MICHAEL BAHN ; CHAEHO BYUN; GIANDIEGO CAMPETELLA; BRUNO E. L. CERABOLINI; JOSEPH M. CRAINE; ANDRES GONZALEZ-MELO; ALVARO G. GUTIÉRREZ; TIANHUA HE; PEDRO HIGUCHI; HERVÉ JACTEL; NATHAN J. B. KRAFT; VANESSA MINDEN; VLADIMIR ONIPCHENKO; JOSEP PEÑUELAS; VALÉRIO D. PILLAR ; ENIO EGON SOSINSKI JUNIOR, Cenargen; NADEJDA A. SOUDZILOVSKAIA; EVAN WEIHER; MIGUEL D. MAHECHA. |
Título: |
Climatic and soil factors explain the two-dimensional spectrum of global plant trait variation. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Nature Ecology & Evolution, v. 6, p. 36-50, Jan. 2022. |
DOI: |
https://doi.org/10.1038/s41559-021-01616-8 |
Idioma: |
Inglês |
Notas: |
Published online 23 December 2021. |
Conteúdo: |
Plant functional traits can predict community assembly and ecosystem functioning and are thus widely used in global models of vegetation dynamics and land?climate feedbacks. Still, we lack a global understanding of how land and climate affect plant traits. A previous global analysis of six traits observed two main axes of variation: (1) size variation at the organ and plant level and (2) leaf economics balancing leaf persistence against plant growth potential. The orthogonality of these two axes suggests they are differently influenced by environmental drivers. We find that these axes persist in a global dataset of 17 traits across more than 20,000 species. We find a dominant joint effect of climate and soil on trait variation. Additional independent climate effects are also observed across most traits, whereas independent soil effects are almost exclusively observed for economics traits. Variation in size traits correlates well with a latitudinal gradient related to water or energy limitation. In contrast, variation in economics traits is better explained by interactions of climate with soil fertility. These findings have the potential to improve our understanding of biodiversity patterns and our predictions of climate change impacts on biogeochemical cycles. |
Thesagro: |
Biodiversidade; Clima; Meio Ambiente; Mudança Climática; Planta; Solo; Vegetação. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230733/1/Artigo-Climatic-and-soil-factors-explain.pdf
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Marc: |
LEADER 03181naa a2200709 a 4500 001 2139507 005 2022-03-09 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1038/s41559-021-01616-8$2DOI 100 1 $aJOSWIG, J. S. 245 $aClimatic and soil factors explain the two-dimensional spectrum of global plant trait variation.$h[electronic resource] 260 $c2022 500 $aPublished online 23 December 2021. 520 $aPlant functional traits can predict community assembly and ecosystem functioning and are thus widely used in global models of vegetation dynamics and land?climate feedbacks. Still, we lack a global understanding of how land and climate affect plant traits. A previous global analysis of six traits observed two main axes of variation: (1) size variation at the organ and plant level and (2) leaf economics balancing leaf persistence against plant growth potential. The orthogonality of these two axes suggests they are differently influenced by environmental drivers. We find that these axes persist in a global dataset of 17 traits across more than 20,000 species. We find a dominant joint effect of climate and soil on trait variation. Additional independent climate effects are also observed across most traits, whereas independent soil effects are almost exclusively observed for economics traits. Variation in size traits correlates well with a latitudinal gradient related to water or energy limitation. In contrast, variation in economics traits is better explained by interactions of climate with soil fertility. These findings have the potential to improve our understanding of biodiversity patterns and our predictions of climate change impacts on biogeochemical cycles. 650 $aBiodiversidade 650 $aClima 650 $aMeio Ambiente 650 $aMudança Climática 650 $aPlanta 650 $aSolo 650 $aVegetação 700 1 $aWIRTH, C. 700 1 $aSCHUMAN, M. C. 700 1 $aKATTGE, J. 700 1 $aREU, B. 700 1 $aWRIGHT, I. J. 700 1 $aSIPPEL, S. D. 700 1 $aRÜGER, N. 700 1 $aRICHTER, R. 700 1 $aSCHAEPMAN, M. E. 700 1 $aVAN BODEGOM, P. M. 700 1 $aCORNELISSEN, J. H. C. 700 1 $aDÍAZ, S. 700 1 $aHATTINGH, W. N. 700 1 $aKRAMER, K. 700 1 $aLENS, F. 700 1 $aNIINEMETS, U. 700 1 $aREICH, P. B. 700 1 $aREICHSTEIN, M. 700 1 $aRÖMERMANN, C. 700 1 $aSCHRODT, F. 700 1 $aANAND, M. 700 1 $aBAHN , M. 700 1 $aBYUN, C. 700 1 $aCAMPETELLA, G. 700 1 $aCERABOLINI, B. E. L. 700 1 $aCRAINE, J. M. 700 1 $aGONZALEZ-MELO, A. 700 1 $aGUTIÉRREZ, A. G. 700 1 $aHE, T. 700 1 $aHIGUCHI, P. 700 1 $aJACTEL, H. 700 1 $aKRAFT, N. J. B. 700 1 $aMINDEN, V. 700 1 $aONIPCHENKO, V. 700 1 $aPEÑUELAS, J. 700 1 $aPILLAR , V. D. 700 1 $aSOSINSKI JUNIOR, E. E. 700 1 $aSOUDZILOVSKAIA, N. A. 700 1 $aWEIHER, E. 700 1 $aMAHECHA, M. D. 773 $tNature Ecology & Evolution$gv. 6, p. 36-50, Jan. 2022.
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