SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Ćurčić, Božidar P.M.; Poinar, George O.; Sarbu, Serban M..

Two species of Roncus L. Koch, 1873 (Neobisiidae), new to science (R. ciobanmos n. sp. and R. dragobete n. sp.), and one species of Neobisium Chamberlin, 1930 [N. (N). biharicum Beier, 1939], collected in the Movile Cave, southern Dobrogea, Romania, have been described, diagnostic characters illustrated, and their geographic distribution analyzed. In addition, the description of Chthonius (Chthonius) monicae Boghean, 1989 (Chthoniidae), otherwise known only from two females, has been amended. The possible relationships of these species are discussed in view of the importance of some diagnostic characters and of the evolution of their cave habitat.

New hypogean cyclopoid copepods (Crustacea) from the Yucatán Peninsula, Mexico

Palavras-chave: Cave fauna; Taxonomy; Biogeography; Evolution; Pseudoscorpions; Chthoniidae; Neobisiidae; Chthonius; Roncus; Neobisium; New species.

Ano: 1994

URL: http://www.repository.naturalis.nl/record/504604

Fiers, Frank; Reid, Janet W.; Iliffe, Thomas M.; Suárez-Morales, Eduardo.

Four previously unknown hypogean species of cyclopoid copepods were collected in cenotes and wells of the Yucatán Peninsula, Mexico. Diacyclops chakan sp. n. and D. puuc sp. n. differ from their congeners in combining 3-segmented swimming legs, 11-segmented antennules, and legs 1-4 endopodite segment 2 all with 2 setae. Species of Diacyclops rarely occur in tropical regions, and the Diacyclops described here are only the second and third species recorded from Mexico. The benthic D. puuc was found in the large underground reservoir of a cenote. Diacyclops chakan was encountered in such large open subterranean water basins, but more frequently and abundantly in wells. The two Mesocyclops species, M. chaci sp. n. and M. yutsil sp. n., most closely resemble...

New perspectives on the evolution of the genus Typhlatya (Crustacea, Decapoda): first record of a cavernicolous atyid in the Iberian Peninsula, Typhlatya miravetensis n. sp

Palavras-chave: Diacyclops; Mesocyclops; Copepoda; Cyclopoida; Biogeography; Evolution; Hypogean; Karst; Species-flock; Taxonomy; Mexico.

Ano: 1996

URL: http://www.repository.naturalis.nl/record/504240

Sanz, Sebastián; Platvoet, Dirk.

On several occasions, shrimps belonging to a new species of the genus Typhlatya were collected in a cave in the province of Castellón, Spain. This is the first record of the genus in the Iberian Peninsula. The species is described and the validity, distribution, and zoogeography of the genus, as well as the status of the genus Spelaeocaris, are discussed. Former models for the evolution of the genus Typhlatya and its genus group are reviewed, as well as the system of inner classification of the Atyidae and its biogeographical meaning. For the age and evolution of the genus we developed a new model based on vicariance principles that involves further evolution of each species after the disruption of the ancestral range. This allows new estimations for the...

New primers for promising single-copy genes in fungal phylogenetics and systematics

Palavras-chave: Typhlatya; Decapoda; Spain; Subterranean waters; Systematics; Zoogeography; Vicariance; Evolution; Key to genus.

Ano: 1995

URL: http://www.repository.naturalis.nl/record/503881

Schmitt, I.; Crespo, A.; Divakar, P.K.; Fankhauser, J.D.; Herman-Sackett, E.; Kalb, K.; Nelsen, M.P.; Nelson, N.A.; Rivas-Plata, E.; Shimp, A.D.; Widhelm, T.; Lumbsch, H.T..

Developing powerful phylogenetic markers is a key concern in fungal phylogenetics. Here we report degenerate primers that amplify the single-copy genes Mcm7 (MS456) and Tsr1 (MS277) across a wide range of Pezizomycotina (Ascomycota). Phylogenetic analyses of 59 taxa belonging to the Eurotiomycetes, Lecanoromycetes, Leotiomycetes, Lichinomycetes and Sordariomycetes, indicate the utility of these loci for fungal phylogenetics at taxonomic levels ranging from genus to class. We also tested the new primers in silico using sequences of Saccharomycotina, Taphrinomycotina and Basidiomycota to predict their potential of amplifying widely across the Fungi. The analyses suggest that the new primers will need no, or only minor sequence modifications to amplify...

Nothophytophthora gen. nov., a new sister genus of Phytophthora from natural and semi-natural ecosystems

Palavras-chave: Ascomycota; DNA replication licensing factor; Evolution; Lichenised fungi; Mcm7; MS277; MS456; Phylogeny; Pre-rRNA processing protein; Protein-coding; Tsr1.

Ano: 2009

URL: http://www.repository.naturalis.nl/record/531799

Jung, T.; Scanu, B.; Bakonyi, J.; Seress, D.; Kovács, G.M.; Durán, A.; Sanfuentes von Stowasser, E.; Schena, L.; Mosca, S.; Thu, P.Q.; Nguyen, C.M.; Fajardo, , S.; González, M.; Pérez-Sierra, A.; Rees, H.; Cravador, A.; Maia, C.; Horta Jung, M..

During various surveys of Phytophthora diversity in Europe, Chile and Vietnam slow growing oomycete isolates were obtained from rhizosphere soil samples and small streams in natural and planted forest stands. Phylogenetic analyses of sequences from the nuclear ITS, LSU, β-tubulin and HSP90 loci and the mitochondrial cox1 and NADH1 genes revealed they belong to six new species of a new genus, officially described here as Nothophytophthora gen. nov., which clustered as sister group to Phytophthora. Nothophytophthora species share numerous morphological characters with Phytophthora: persistent (all Nothophytophthora spp.) and caducous (N. caduca, N. chlamydospora, N. valdiviana, N. vietnamensis) sporangia with variable shapes, internal differentiation of...

Nuclear DNA content determination in Characiformes fish (Teleostei, Ostariophysi) from the Neotropical region

Palavras-chave: Breeding system; Caducity; Evolution; Oomycetes; Peronosporaceae; Phylogeny.

Ano: 2017

URL: http://www.repository.naturalis.nl/record/635416

Genet. Mol. Biol.

Carvalho,Margarida Lima; Oliveira,Claudio; Navarrete,Maria Clara; Froehlich,Otávio; Foresti,Fausto.

In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina squamoralevis, with a modal number of 54 chromosomes. Nuclear DNA content ranged from 1.70 ± 0.04 pg of DNA per diploid nucleus in Acestrorhynchus pantaneiro to 3.94 ± 0.09 pg in Tetragonopterus chalceus. A general analysis showed a mean value of 2.9 pg of DNA per diploid nucleus. Very similar DNA content values were observed in the species of the family Cynodontidae which showed a variation of 3% between the two genera studied. Small variations were observed between populations of Gymnocorymbus ternetzi,...

Nuclear DNA content in 20 species of Siluriformes (Teleostei: Ostariophysi) from the Neotropical region

Palavras-chave: Nuclear DNA; DNA content; Chromosome; Fish; Evolution.

Ano: 2002

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000100010

Genet. Mol. Biol.

Fenerich,Paulo César; Foresti,Fausto; Oliveira,Claudio.

In the present study, 20 species of Siluriformes fish were analyzed in order to determine their nuclear DNA content and compare these data with their diploid number. In addition, the extension and importance of the changes that occurred during the process of diversification in the group of Neotropical freshwater catfish were investigated. The only species studied of the family Doradidae, Rhinodoras d'orbignyi (2n = 58), presented 3.46 ± 0.13 pg of DNA. Among the species of the family Heptapteridae, the values of nuclear DNA content and the diploid numbers ranged from 1.13 ± 0.09 pg of DNA in Pimelodella sp. (2n = 46) to 2.38 ± 0.07 pg of DNA in Imparfinis mirini (2n = 58). The family Loricariidae showed the widest variation in diploid number and nuclear...

Occurrence of polygyny in Acromyrmex subterraneus molestans Santschi 1925 (Hymenoptera: Formicidae)

Palavras-chave: Nuclear DNA; DNA content; Chromosome; Fish; Evolution.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300008

Ciência Rural

Souza,Danival José de; Lino Neto,José; Lucia,Terezinha M. C. Della; Peternelli,Ethel.

Polygyny denotes the coexistence of two or more mated and fertile queens in the colony. A colony of Acromyrmex subterraneus molestans Santschi containing 14 queens was collected on campus of the Universidade Federal de Viçosa, Brazil, aiming to verify if they were all egg-layers and fertile . The volume of the fungus garden in the nest was about 500 ml with a large number of larvae and pupae. Observation of the ovarian development and spermathecae indicates that 13 queens had copulated and ovary did not show morphological differences among them. This could indicate that polygyny is not accidental and may represent an adaptative strategy to optimize the development of the initial colony in A. subterraneus molestans.

Old teeth, new methods: microtexture and morphometry analysis provide insight in gradual evolution and dietary change in the extinct bovid Myotragus

Palavras-chave: Leaf-cutting ants; Adaptative strategy; Evolution.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000500045

Winkler, D.E..

This article reveals that either a dietary shift took place in this lineage or Myotragus successively adapted to increased intraspecific competition, expanding its dietary range to adapt to energetic restrictions.

One hundred million years of interhemispheric communication: the history of the corpus callosum

Palavras-chave: Microtexture; Morphometry; Evolution; Dietary change; Bovid; Energetic restrictions; 38.22; 42.84.

Ano: 2011

URL: http://www.repository.naturalis.nl/record/428251

BJMBR

Aboitiz,F.; Montiel,J..

Analysis of regional corpus callosum fiber composition reveals that callosal regions connecting primary and secondary sensory areas tend to have higher proportions of coarse-diameter, highly myelinated fibers than callosal regions connecting so-called higher-order areas. This suggests that in primary/secondary sensory areas there are strong timing constraints for interhemispheric communication, which may be related to the process of midline fusion of the two sensory hemifields across the hemispheres. We postulate that the evolutionary origin of the corpus callosum in placental mammals is related to the mechanism of midline fusion in the sensory cortices, which only in mammals receive a topographically organized representation of the sensory surfaces. The...

Opsin genes: research perspectives with Neotropical cichlids (Perciformes: Cichlidae) and their relevance in floodplain studies

Palavras-chave: Commissures; Evolution; Interhemispheric transfer; Lateralization; Synchronization.

Ano: 2003

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400002

Biological Sciences

Fabrin, Thomaz Mansini Carrenho; Gasques, Luciano Seraphim; Prioli, Sonia Maria Alves Pinto; Prioli, Alberto José.

Vision not only plays an important role in the behavior and exploration capacity of new ecology niches but also influences the evolution of species exposed to the heterogeneity of light. Floodplain environments have high habitat heterogeneity and, thus, different light gradients. Cichlids are a group of vertebrates that has stirred interest in evolutionary studies due to their morphological and behavioral diversity and their widely used vision. The molecular basis of vertebrates’ vision occurs through the interaction of opsin proteins and retinal chromophores. Proteins are expressed by opsin genes where each is responsible for absorbing certain light wavelengths. Current review analyzes the main characteristics of opsin genes family and the possibility of...

Optics and phylogeny: is there an insight? The evolution of superposition eyes in the Decapoda (Crustacea)

Palavras-chave: 2.02.00.00-5 ecology; Evolution; Visual pigments; Visual system Genética.

Ano: 2016

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28295

Gaten, Edward.

This paper addresses the use of eye structure and optics in the construction of crustacean phylogenies and presents an hypothesis for the evolution of superposition eyes in the Decapoda, based on the distribution of eye types in extant decapod families. It is suggested that reflecting superposition optics are symplesiomorphic for the Decapoda, having evolved only once, probably in the Devonian. Subsequent loss of reflecting superposition optics has occurred following the adoption of a new habitat (e.g. Aristeidae, Aeglidae) or by progenetic paedomorphosis (Paguroidea, Eubrachyura).

Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight

Palavras-chave: Compound eyes; Superposition optics; Adaptation; Evolution; Decapod crustaceans; Phylogeny.

Ano: 1998

URL: http://www.repository.naturalis.nl/record/534404

International Journal of Morphology

Diogo,Rui.

The Weberian apparatus is essentially a mechanical device improving audition, consisting of a double chain of ossicles joining the air bladder to the inner ear. Despite being one of the most notable complex systems of teleost fishes and the subject of several comparative, developmental and functional studies, there is still much controversy concerning the origin, evolution and homologies of the structures forming this apparatus. In this paper I provide a new insight on these topics, which takes into account the results of recent works on comparative anatomy, paleontology, and ontogeny as well as of a recent extensive phylogenetic analysis including not only numerous otophysan and non-otophysan extant otocephalans but also ostariophysan fossils such as...

Tipo: Journal article

Palavras-chave: Evolution; Functional anatomy; Ostariophysi; Otocephala; Otophysi; Phylogeny; Teleostei; Weberian apparatus.

Ano: 2009

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200008

Phenotypic variation of the Aedeagus of Drosophila serido vilela & sene (Diptera: Drosophilidae)

Neotropical Entomology

Franco,Fernando F.; Soto,Ignacio M.; Sene,Fabio M.; Manfrin,Maura H..

Drosophila serido Vilela & Sene is a polytypic and cactophilic species with broad geographic distribution in Brazil. The morphology of the aedeagi of eight natural populations of D. serido was analyzed. Based on features of their aedeagi, populations of D. serido were discriminated with an efficiency of nearly 75%. The analysis using the Mantel test suggests that the morphological divergence of D. serido is correlated with the geographic distance among populations. There is no single cause to explain the observed pattern; therefore, the results were discussed considering the three main hypotheses to explain the aedeagus evolution: lock and key, pleiotropy and sexual selection. Alternatively, the aedeagus variability of D. serido might be related to...

PHYLOGENETIC RELATIONSHIPS AMONG CHILEAN SPECIES OF DRIMYS (WTNTERACEAE) BASED ON ITS SEQUENCES AND INSERTION/DELETION EVENTS

Palavras-chave: Evolution; Geometric morphometric; Repleta group.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000500009

Gayana Botánica

Ruiz,Eduardo; Toro,Oscar; Crawford,Daniel J; Stuessy,Tod F; Negritto,María A; Baeza,Carlos; Becerra,José.

Phylogenetic relationships among Chilean species of Drimys as well asD. granadensis from Central America andD. angustifolia from Brazil were reconstructed using internal transcribed spacers (ITS) of nuclear ribosomal DNA and a parsimony analysis. Our results at the family level were congruent with previous phylogenetic hypotheses. Molecular data indicate that the Juan Fernandez Island endemic D. confertifolia diverged early in the evolution of the genus, and it is not closely related to the continental species D. winteri, as might be expected on the basis of morphology and biogeography. The ITS phytogeny also provides general support for a recent distribution of species on the western side of the Andes Mountains; the only exception is D. andina, which may...

Tipo: Journal article

Palavras-chave: Drimys; Evolution; ITS; Indels; Winteraceae.

Ano: 2008

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432008000200008

Phylogenetic relationships of the species of Acestridium Haseman, 1911 (Siluriformes: Loricariidae)

Neotropical Ichthyology

Rodriguez,Mónica S.; Delapieve,Maria Laura S.; Reis,Roberto E..

A phylogeny of the species of the loricariid genus Acestridium and relevant outgroups is presented based on a parsimony analysis of 52 unweighted and unordered morphological characters. Acestridium is diagnosed as monophyletic based on the possession of the 17 exclusive synapomorphies. Two primary trees were found, and the strict consensus among those alternative trees resulted in the following relationships: ((A. dichromum + A. triplax)(A. gymnogaster + A. scutatum + (A. discus (A. colombiensis + A. martini)))). Acestridium was found to be sister to Niobichthys with this clade subsequently the sister-group to Oxyropsis + Hypoptopoma.

Phylogenomic and single nucleotide polymorphism analyses revealed the hybrid origin of Spondias bahiensis (family Anacardiaceae): de novo genome sequencing and comparative genomics

Palavras-chave: Amazon; Biodiversity; Evolution; Neotropical; Phylogeny.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200325

Genet. Mol. Biol.

Nobre,Lydayanne Lilás de Melo; Santos,José Daniel Oliveira dos; Leite,Rychard; Almeida,Cícero.

Abstract The genus Spondias (family Anacardiaceae) comprises 19 taxa, ten of which occur in Neotropical regions. Spondias bahiensis has been suggested to be a hybrid, although initial evidence does not support this hypothesis. The aim of this study was to test the hypothesis of the hybrid origin of S. bahiensis using high-throughput sequencing with single nucleotide polymorphism (SNP) analysis, characterization of intragenomic nuclear ribosomal DNA (nrDNA), and nuclear and chloroplast phylogenomic analyses. The SNP analysis revealed a high number of SNPs in the S. bahiensis genome, and with respect to nrDNA, S. bahiensis shared approximately half of the SNP alleles with S. tuberosa, but not with S. mombin. Combining the SNP analysis with nrDNA phylogeny...

Phylogeography of the banded butterflyfish, Chaetodon striatus, indicates high connectivity between biogeographic provinces and ecosystems in the western Atlantic

Palavras-chave: RDNA; Phylogenetics; Evolution; Hybrid offspring.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000500878

Neotropical Ichthyology

Liedke,Ana M.R.; Pinheiro,Hudson T.; Floeter,Sergio R.; Bernardi,Giacomo.

ABSTRACT Among the four butterflyfishes of the genus Chaetodon present in the western Atlantic, the banded butterflyfish Chaetodon striatus has the largest distribution range, spanning 44 degrees of latitude (from Massachusetts, USA to Santa Catarina, Brazil). Although the ecology of the banded butterflyfish has been well studied over its entire range, nothing is known about its phylogeography and how biogeographic barriers structure its populations. To assess the level of genetic connectivity among populations from distinct biogeographic provinces and environmental conditions, we collected samples from seven localities: Puerto Rico, in the Caribbean, and Tamandaré, Salvador, Abrolhos, Trindade Island, Arraial do Cabo and Florianópolis, in Brazil. One...

Phylogeography of the Sponge Suberites diversicolor in Indonesia: insights into the evolution of marine lake populations

Palavras-chave: Biogeography; Evolution; Mitochondrial Genes; Nuclear Genes; Reef Fish.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100205

Becking, L.E.; Erpenbeck, D.; Peijnenburg, K.T.C.A.; Voogd, N.J. de.

The existence of multiple independently derived populations in landlocked marine lakes provides an opportunity for fundamental research into the role of isolation in population divergence and speciation in marine taxa. Marine lakes are landlocked water bodies that maintain a marine character through narrow submarine connections to the sea and could be regarded as the marine equivalents of terrestrial islands. The sponge Suberites diversicolor (Porifera: Demospongiae: Suberitidae) is typical of marine lake habitats in the Indo-Australian Archipelago. Four molecular markers (two mitochondrial and two nuclear) were employed to study genetic structure of populations within and between marine lakes in Indonesia and three coastal locations in Indonesia,...

Plant insulin or glucokinin: a conflicting issue

Palavras-chave: Suberites diversicolor; Indo-Australian Archipelago; Marine lakes; Evolution; 42.72.

Ano: 2013

URL: http://www.repository.naturalis.nl/record/470571

Braz. J. Plant Physiol.

Xavier-Filho,José; Oliveira,Antônia Elenir A.; Silva,Luciana Belarmindo da; Azevedo,Cassiana Rocha; Venâncio,Thiago Motta; Machado,Olga Lima T.; Oliva,Maria Luiza; Fernandes,Kátia Valevski S.; Xavier-Neto,José.

The presence of insulin in plants is not accepted by the scientific community in general. In this review we discuss this paradigm and retrieve information that strongly suggests that insulin is indeed found in plants. We present results, which indicate that a protein molecule with the same amino acid sequence as bovine insulin is expressed in leguminous plants. Additionally, we provide evidence that proteins associated with insulin signalling pathways in vertebrates are also found in association with insulin-like molecules in plants.