26 research outputs found

    Zornia J.F.Gmel. (Leguminosae - Papilionoideae - Aeschynomeneae) in the State of São Paulo

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    This work presents an inventory of the species of the genus Zornia J.F.Gmel. in State of São Paulo. Nine species have been recognized: Zornia gardneriana Moric., Z virgata Moric., Z cryptantha Arechav., Z ramboiana Mohlenbr., Z. glabra Desv., Z reticulata Sm., Z latifolia Sm., Z curvata Mohlenbr. and Z gemella (Willd.) Vogel. Zornia paniculata N.F. Mattos was considered synonymous of Z virgata. An identification key for these species as well their descriptions, comments, illustrations and updates geographic distribution data were provided.Este trabalho teve como objetivo levantar e estudar as espécies do gênero Zornia J.F.Gmel. que ocorrem no Estado de São Paulo. Foi confirmada a ocorrência de 9 espécies: Zornia gardneriana Moric., Z. virgata Moric., Z. cryptantha Arechav., Z. ramboiana Mohlenbr., Z. glabra Desv., Z. reticulata Sm., Z. latifolia Sm., Z. curvata Mohlenbr. e Z gemella (Willd.) Vogel. Zornia paniculata N.F. Mattos foi considerada sinônimo de Z virgata. Para as espécies foi confeccionada uma chave para identificação, descrições, comentários, ilustrações e mapas de distribuição geográfica.237266Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

    Limadendron: a new genus of leguminosae (papilionoideae, brongniartieae) from South America

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    A new genus Limadendron (Leguminosae, Papilionoideae, Brongniartieae) from northern South America is described and illustrated. The new genus is segregated from Poecilanthe based on a previous phylogenetic analysis. Limadendron is sister to Cyclolobium and differs from it mainly by its woody dehiscent legumes contrasting with the winged samaroid fruits of the latter. Two new combinations, Limadendron amazonicum (Ducke) Meireles & A. M. G. Azevedo and Limadendron hostmannii (Benth.) Meireles & A. M. G. Azevedo, are proposed. A distribution map and an identification key for the species are also provided3012701707CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPSem informação06/50154-

    Phytogeographical patterns of Crotalaria L. species (Leguminosae-Papilionoideae) in Brazil

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    ABSTRACT The phytogeography and preferred habitat of Crotalaria species from Brazil are studied. Four species are widely distributed in Brazil, while C. goiasensis and C. irwinii are endemic to the state of Goiás, C. clausseni to São Paulo, C. rufipila to Minas Gerais and C. brachycarpa and C. harleyi to Bahia. Crotalaria species occurs in the following biogeographical provinces: Amazonian, Atlantic, Caatinga, Cerrado, Chaqueña, Guayana, Pampeana and Paranaense. The Cerrado province presents the largest number of species with restricted distribution, followed by the Paranaense province. The geographical distribution of species in Brazil shows higher species diversity in the highlands (800 - 2000 m.s.m.), such as the Serra Geral de Goiás, Chapada dos Veadeiros, Espinhaço Range (15-16 spp.), Serra da Mantiqueira and Serra do Mar (14 spp.). As well as the altitude, vegetation and climate influence the distribution of Crotalaria in Brazil

    Characterization Of Microsatellite Markers Developed From Prosopis Rubriflora And Prosopis Ruscifolia (leguminosae - Mimosoideae), Legume Species That Are Used As Models For Genetic Diversity Studies In Chaquenian Areas Under Anthropization In South America.

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    Prosopis rubriflora and Prosopis ruscifolia are important species in the Chaquenian regions of Brazil. Because of the restriction and frequency of their physiognomy, they are excellent models for conservation genetics studies. The use of microsatellite markers (Simple Sequence Repeats, SSRs) has become increasingly important in recent years and has proven to be a powerful tool for both ecological and molecular studies. In this study, we present the development and characterization of 10 new markers for P. rubriflora and 13 new markers for P. ruscifolia. The genotyping was performed using 40 P. rubriflora samples and 48 P. ruscifolia samples from the Chaquenian remnants in Brazil. The polymorphism information content (PIC) of the P. rubriflora markers ranged from 0.073 to 0.791, and no null alleles or deviation from Hardy-Weinberg equilibrium (HW) were detected. The PIC values for the P. ruscifolia markers ranged from 0.289 to 0.883, but a departure from HW and null alleles were detected for certain loci; however, this departure may have resulted from anthropic activities, such as the presence of livestock, which is very common in the remnant areas. In this study, we describe novel SSR polymorphic markers that may be helpful in future genetic studies of P. rubriflora and P. ruscifolia.737
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