[PDF] Top 20 Cytogenetic analysis of three Ctenidae species (Araneae) from the Amazon

... total of 10 individuals (5 males of Ctenus amphora and 5 males of ...surrounding the Federal University of Amazonas (UFAM), in the eastern part of the city ... See full document

... pair of medium-sized autosomal univalents were seen in a low frequency at diakinesis (less than 10% of the cells) and two univalent pairs were seen in a single cell (Figure ...2e). The sex ... See full document

... karyotype of Bryconamericus ...94); the acrocentric pair 24 exhibited a size heteromorphism regarding to secondary constriction and Ag-NOR clus- ters in the metaphase cells of all sampled ... See full document

... be the plesio- morphic chromosomal ...derive from cytotype b, thus leading to two hy- pothesis: either the pericentric inversion is a recent karyoevolutionary process, since cytotype b might corre- ... See full document

... studied the karyo- logical evolution of the order Siluriformes, particularly of the family Diplomystidae, and reached the conclusion that the ancestral diploid number for ... See full document

... test the monophyletism of this group (Free- man et ...on the relationships of these ...support the relationship between ...Serrasalmus species. On the other hand, ... See full document

... multiples of 3-4 pores ...present; the vascular elements are short in length, varying from 250 µm to 650 µm (average of ...ranging from 610 µm to 1900 µm, fiber wall thickness were ... See full document

... evaluate the potential of the allelopathic effect of aqueous tannin extracts from the bark of the species Mutamba (Guazuma ulmifolia ...growth of ... See full document

... across the state of Mato Grosso do Sul (Seixas and Mourão, 2000, ...on the number of wild birds in illegal trade is not available and the number of birds removed from wild ... See full document

... are the most derived group of teleostean ...degree of fusions or signiicant bone loss in the head and body. In the early phyloge- netic proposals presented for this order, the ... See full document

... using the computer application MicroMeasure ...Biology/MicroMeasure/>). The karyotype was built using imaging processing. The nomenclature followed for karyotype description was proposed by Levan ... See full document

... minimizing the potential for ...amplification-based analysis, since the DNA amplification is influenced by the presence of co-purifying inhibitors from matrix or extraction ... See full document

... degree of karyotypic homeologies found be- tween Uroderma species reinforces its ...10 of U. bilobatum not found in any other species of Stenodermatinae bats with G-banded karyotypes ... See full document

... obtained from kidney cell suspensions based on the method described by Foresti et ...(1993). Analysis of the constitutive heterochroma- tin (C-banding) was performed as described by ... See full document

... number of clavate glandular trichomes (colleters) were also observed on both surfaces of leaf primordia (Figure 2D) and non-expanded leaves of all species (Figures 2E-H), but they differed ... See full document

... number of clavate glandular trichomes (colleters) were also observed on both surfaces of leaf primordia (Figure 2D) and non-expanded leaves of all species (Figures 2E-H), but they differed ... See full document

... new species of Stygnidae Simon, 1879, Imeri ajuba ...females from Coari, Amazonas, Brazil. The new species, differs from the only other species of the ... See full document

... puchury-minor the axial parenchyma was sparse paratracheal-vasicentric or sparse vasicentric, whereas it was consistently paratracheal-vasicentric in ...fragrans, the axial parenchyma was vasicentric, ... See full document

... comparative analysis of the two species of Uroderma allowed us to conclude that they are ...monophyletic. The species ...last species showed larger number of ... See full document

... in the epidermal and subepidermal cells (Koyama 1966; Dahlgren et ...confirmed the low occurrence of such structures among Mapania and Hypolytrum ...Although the dark epidermal cells observed ... See full document