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Registros recuperados: 22
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Intracolonial variation in Siderastrea de Blainville, 1830 (Anthozoa, Scleractinia): taxonomy under challenging morphological constraints Biota Neotropica
Menezes,Natália Matos de; Neves,Elizabeth Gerardo; Barros,Francisco; Kikuchi,Ruy Kenji Papa de; Johnsson,Rodrigo.
The morphology of sessile invertebrates, such as scleractinian corals, can be controlled by environmental and genetic mechanisms and, consequently, it is highly variable. Morphological variation has puzzled taxonomists by posing challenges to species classification within cryptic species complexes. The 'Atlantic Siderastrea Complex' is a suitable example. Because of overlapping diagnostic traits, the morphological interspecific limits of this group remain controversial and often resulted in doubtful synonyms. In addition, the recent identification of the Caribbean S. radians in the Southwestern Atlantic has revealed that intraspecific variation has been equivocally assessed. Traditionally, hierarchical categories of variation have been the criteria used to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Systematics; Siderastrea radians; Morphological variation; Biogeographic expansion; South Atlantic.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100012
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Genetic variability in clones of 'Prata Anã' bananas based on phenotypic and molecular markers Bragantia
Rodrigues,Francisco Ermelindo; Librelon,Samira Santiago; Nietsche,Silvia; Costa,Márcia Regina; Pereira,Marlon Cristian Toledo.
The objective of this study was to examine the molecular and phenotypic variability of 'Prata Anã' banana clones cultivated in northern Minas Gerais State. For the phenotypic and molecular characterization, the clones were collected from five properties. The morphological characterization of 20 clones was accomplished through a qualitative evaluation of 74 descriptors. For the molecular evaluations, 45 clones were collected, and 14 Random Amplified Polymorphic DNA primers were used. Among the 74 morphological descriptors evaluated in the 20 'Prata Anã' banana tree clones, 53 descriptors presented in the same homogeneous class for all clones. The presence of anthocyanin in the pseudostem (ANT) and the shape (BUS) and flexion (FLX) of the bunch clearly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Musa spp.; Morphological variation; Diversity; Clonal population; RAPD.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052012000200005
Registros recuperados: 22
Primeira ... 12 ... Última
 

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