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A new angiosperm from the Crato Formation (Araripe Basin, Brazil) and comments on the Early Cretaceous Monocotyledons Anais da ABC (AABC)
LIMA,FLAVIANA J. DE; SARAIVA,ANTÔNIO A.F.; SILVA,MARIA A.P. DA; BANTIM,RENAN A.M.; SAYÃO,JULIANA M..
The Crato Formation paleoflora is one of the few equatorial floras of the Early Cretaceous. It is diverse, with many angiosperms, especially representatives of the clades magnoliids, monocotyledons and eudicots, which confirms the assumption that angiosperm diversity during the last part of the Early Cretaceous was reasonably high. The morphology of a new fossil monocot is studied and compared to all other Smilacaceae genus, especially in the venation. Cratosmilax jacksoni gen. et sp. nov. can be related to the Smilacaceae family, becoming the oldest record of the family so far. Cratosmilax jacksoni is a single mesophilic leaf with entire margins, ovate shape, with acute apex and base, four venation orders and main acrodromous veins. It is the first...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araripe Basin; Cratosmilax jacksoni; Cretaceous; Fossil leaf; Gondwana; Monocots.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401657
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Cytological studies in four species of Mesosetum (Arthropogoninae) reveal the lowest chromosome number among the Neotropical Poaceae. Repositório Alice
RIBEIRO, A. R. O.; SOUSA, M. W. S.; OLIVEIRA, R. C. de; ARAUJO, A. C. G.; FAGG, C. W.; POZZOBON, M. T..
2015
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Meiotic behaviour; Monocots; Reproduction; Grass; Cytogenetic.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1030474
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pGVG: a new Gateway-compatible vector for transformation of sugarcane and other monocot crops Genet. Mol. Biol.
Guidelli,Giovanna V.; Mattiello,Lucia; Gallinari,Rafael H.; Lucca,Paulo Cezar de; Menossi,Marcelo.
Abstract The successful development of genetically engineered monocots using Agrobacterium-mediated transformation has created an increasing demand for compatible vectors. We have developed a new expression vector, pGVG, for efficient transformation and expression of different constructs for gene overexpression and silencing in sugarcane. The pCAMBIA2300 binary vector was modified by adding Gateway recombination sites for fast gene transfer between vectors and the maize polyubiquitin promoter Ubi-1 (ZmUbi1), which is known to drive high gene expression levels in monocots. Transformation efficiency using the pGVG vector reached up to 14 transgenic events per gram of transformed callus. Transgenic plants expressing the β-glucuronidase (GUS) reporter gene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Monocots; Sugarcane; Vector; Gateway technology; Genetic transformation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000300450
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