We present here the physical mapping of the 5S rDNA locus in six wild and five cultivated taxa of Capsicum by means of a genus-specific FISH probe. In all taxa, a single 5S locus per haploid genome that persistently mapped onto the short arm of a unique metacentric chromosome pair at intercalar position, was found. 5S FISH signals of almost the same size and brightness intensity were observed i...

A new species of Solanum belonging to section Acanthophora (subgenus Leptostemonum) from Argentina and Brazil is described. Solanum neei Chiarini & L.A.Mentz, sp. nov. is found in clearings of semideciduous forests and in secondary formations, from the states of Paraná, Rio Grande do Sul and Santa Catarina in Brazil to the Misiones province in Argentina. It is morphologically similar to Solanum...

In the present work we investigated the movement pattern of Spartocera (= Corecoris) dentiventris (Berg) (Hemiptera: Coreidae) adults through the mark-release-recapture method in an experimental tobacco crop (Nicotiana tabacum L., Solanaceae) in Porto Alegre, RS, Brazil. We marked 217 specimens from August 1999 to April 2000. Females moved 2.94 +/- 0.198 times and males 1.46 +/- 0.171 times amo...

Quantitative analyses of sexual expression show extensive interspecific variation in the strength of andromonoecy (proportions of hermaphroditic and staminate flowers) among Solanum species in the monophyletic section Lasiocarpa. The roles of phenotypic plasticity and inter- and intra-inflorescence architecture in the diversification of andromonoecy within this small clade were analyzed. Four s...

Plant resistance conferred by nucleotide binding site (NBS)-encoding resistance genes plays a key role in the defense against various pathogens throughout the entire plant life cycle. However, comparative analyses for the systematic evaluation and determination of the evolutionary modes of NBS-encoding genes among Solanaceae species are rare. In this study, 447, 255, and 306 NBS-encoding genes ...

13 We present a higher-level phylogenetic hypothesis for the diverse neotropical butterfly subfamily Ithomiinae, inferred from one of 14 the largest non-molecular Lepidoptera data sets to date, including 106 species (105 ingroup) and 353 characters (306 informative) 15 from adult and immature stage morphology and ecology. Initial analyses resulted in 1716 most parsimonious trees, which were 16 ...

Chemical Investigation of leaves Cestrum nocturnum (Solanaceae) led to the isolation a compound which was characterized as 1-acetylbutane 1,2(S), 3(S)-4-tetraol or 1-acetyl D-erythritol (I) based on spectroscopic studies.