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Updated check-list of iberian-balearic Aphidini (Hemiptera, Aphididae)  [cached]
García Prieto, Francisca,Pérez Hidalgo, Nicolás,Mier Durante, Milagros Pilar,Nieto Nafría, Juan Manuel
Graellsia , 2004,
Abstract: The check-list of species in the Tribe Aphidini (Hemiptera, Aphididae: Aphidinae) recorded to date from the Iberian Peninsula and Balearic Isles is presented, 139 species are listed. A list of the countries (Andorra, Spain and Portugal) and provinces (Spanish) or districts (Portuguese) where each species and subspecies is known is also included. Five species are mentioned for the first time in Iberian-Balearic territory: Aphis callunae Theobald, A. comosa (B rner), A. lantanae Koch (with the subspecies A. lantanae coriaria B rner), A. erigerontis Holman and Schizaphis longicaudata Hille Ris Lambers. Nine species have been removed from the check-list: Aphis euphorbiae Kaltenbach, A. genistae Scopoli, A. pilosellae (B rner), A. salsolae (B rner), A. striata Hille Ris Lambers, Brachyunguis zygophylli (Nevsky), B. suaedus (Paik), Protaphis centaurea (Gómez-Menor) and Schizaphis pilipes (Ossiannilsson). Aphis ruborum B rner & Schilder, 1931 is recognized as the valid name for Aphis ruborum B rner, 1932 syn. nov. and Rhopalosiphum oxyacanthae (Schrank) for Rhopalosiphum insertum (Walker). Two new combinations are established: Xerobion blascoi comb. nov. for Aphis blascoi García Prieto & Sanchís Segovia and Xerobion brutii comb. nov. for Absinthaphis brutii Barbagallo. Five binomens have been re-established: A. althaeae (Nevsky), A. ballotae Passerini, A. longirostris (B rner), A. ononidis (Schouteden) and A. picridis (B rner) to replace A. davletshinae Hille Ris Lambers, A. balloticola Szelegiewicz, A. longirostrata Hille Ris Lambers, A. kaltenbachi Hille Ris Lambers and A. stroyani Szelegiewicz, respectively. The life cycle of Aphis stachydis Mordvilko is given and its males and oviparous females are described. Taxonomic, faunistics and nomenclatural data of other taxa are also given. Se presenta el catálogo de las especies de la tribu Aphidini (Hemiptera, Aphididae: Aphidinae) citadas hasta este momento en la península Ibérica e islas Baleares, con 139 especies. Se relacionan los países (Andorra, Espa a y Portugal) y las provincias (espa olas) o distritos (portugueses) en los que se han citado cada una de las especies y en su caso subespecies. Cinco especies se citan por primera vez en territorios íbero-baleares: Aphis callunae Theobald, A. comosa (B rner), A. lantanae Koch (con la subespecie A. lantanae coriaria B rner), A. erigerontis Holman y Schizaphis longicaudata Hille Ris Lambers. Nueve especies se suprimen del catálogo íbero-balear de la tribu: Aphis euphorbiae Kaltenbach, A. genistae Scopoli, A. pilosellae (B rner), A. salsolae (B rner), A. striata
Descriptions of Lutzomyia (Evandromyia) georgii n. sp. and a Synopsis of the Series infraspinosa (Diptera: Psychodidae)
Freitas, Rui A;Barrett, Toby V;
Memórias do Instituto Oswaldo Cruz , 2002, DOI: 10.1590/S0074-02762002000200017
Abstract: lutzomyia georgii n. sp. and the female of l. tarapacaensis in the series infraspinosa of the subgenus evandromyia are described, from specimens collected in rainforest in the north of the state of pará, brazil. the new species was taken together with five other evandromyia species including l. infraspinosa (sensu strictu) in the same locality. l. georgii has previously been confused with both l. begonae and l. infraspinosa, whereas l. tarapacaensis would run to l. infraspinosa in recent taxonomic keys. the fact that both l. georgii and l. tarapacaensis are locally sympatric with l. infraspinosa helps to clarify the taxonomic limits of the latter species. new keys to the subgenus evandromyia are provided.
Descriptions of Lutzomyia (Evandromyia) georgii n. sp. and a Synopsis of the Series infraspinosa (Diptera: Psychodidae)  [cached]
Freitas Rui A,Barrett Toby V
Memórias do Instituto Oswaldo Cruz , 2002,
Abstract: Lutzomyia georgii n. sp. and the female of L. tarapacaensis in the Series infraspinosa of the subgenus Evandromyia are described, from specimens collected in rainforest in the north of the State of Pará, Brazil. The new species was taken together with five other Evandromyia species including L. infraspinosa (sensu strictu) in the same locality. L. georgii has previously been confused with both L. begonae and L. infraspinosa, whereas L. tarapacaensis would run to L. infraspinosa in recent taxonomic keys. The fact that both L. georgii and L. tarapacaensis are locally sympatric with L. infraspinosa helps to clarify the taxonomic limits of the latter species. New keys to the subgenus Evandromyia are provided.
Macroevolutionary Patterns in the Aphidini Aphids (Hemiptera: Aphididae): Diversification, Host Association, and Biogeographic Origins  [PDF]
Hyojoong Kim, Seunghwan Lee, Yikweon Jang
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0024749
Abstract: Background Due to its biogeographic origins and rapid diversification, understanding the tribe Aphidini is key to understanding aphid evolution. Major questions about aphid evolution include origins of host alternation as well as age and patterns of diversification in relation to host plants. To address these questions, we reconstructed the phylogeny of the Aphidini which contains Aphis, the most diverse genus in the family. We used a combined dataset of one nuclear and four mitochondrial DNA regions. A molecular dating approach, calibrated with fossil records, was used to estimate divergence times of these taxa. Principal Findings Most generic divergences in Aphidini occurred in the Middle Tertiary, and species-level divergences occurred between the Middle and Late Tertiary. The ancestral state of host use for Aphidini was equivocal with respect to three states: monoecy on trees, heteroecy, and monoecy on grasses. The ancestral state of Rhopalosiphina likely included both heteroecy and monoecy, whereas that of Aphidina was most likely monoecy. The divergence times of aphid lineages at the generic or subgeneric levels are close to those of their primary hosts. The species-level divergences in aphids are consistent with the diversification of the secondary hosts, as a few examples suggest. The biogeographic origin of Aphidini as a whole was equivocal, but the major lineages within Aphidina likely separated into Nearctic, Western Palearctic, and Eastern Palearctic regions. Conclusions Most generic divergences in Aphidini occurred in the Middle Tertiary when primary hosts, mainly in the Rosaceae, were diverging, whereas species-level divergences were contemporaneous with diversification of the secondary hosts such as Poaceae in the Middle to Late Tertiary. Our results suggest that evolution of host alternation within Aphidini may have occurred during the Middle Tertiary (Oligocene) when the secondary hosts emerged.
Toxoptera citricida or Toxoptera citricidus? The validity of a specific name (Hemiptera, Aphididae, Aphidini)  [cached]
Nieto Nafría, J. M.,Alonso-Zarazaga, M. A.,Pérez Hidalgo, N.
Graellsia , 2005,
Abstract: Not available No disponible
Bellezas de medicina práctica descubiertas en 'El ingenioso caballero don Quijote de la Mancha'  [PDF]
Antonio Hernández Morejón (1773-1836)
Panace@ : Revista de Medicina, Lenguaje y Traducción , 2005,
Abstract:
Las matemáticas: descubiertas o inventadas? La respuesta del realismo constructivista  [cached]
Eduardo Harada O.
Ciencia Ergo Sum , 2005,
Abstract: Uno de los problemas más importantes de la filosofía de las matemáticas se refiere al estatutoontológico de los objetos matemáticos: son independientes de la mente humana o solamente son ideas ennuestra mente? La primera postura corresponde al platonismo o al realismo, la segunda al idealismo osubjetivismo (también llamado constructivismo ). En este artículo se presenta el realismo constructivista deKarl R. Popper como una alternativa que supera a las otras: los objetos matemáticos son creados por los sereshumanos, pero se independizan de nosotros y algunas de sus consecuencias tienen que ser descubiertas.
El ciclo escatológico de las recientemente descubiertas pinturas románicas de San Miguel de Gormaz (Soria)
de ávila Juárez, Antonio
Archivo Espa?ol de Arte , 2008,
Abstract:
Differential Splicing Alters Subcellular Localization of the Alpha but not Beta Isoform of the MIER1 Transcriptional Regulator in Breast Cancer Cells  [PDF]
Jaclyn A. Clements, F. Corinne Mercer, Gary D. Paterno, Laura L. Gillespie
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0032499
Abstract: MIER1 was originally identified in a screen for novel fibroblast growth factor activated early response genes. The mier1 gene gives rise to multiple transcripts encoding protein isoforms that differ in their amino (N-) and carboxy (C-) termini. Much of the work to date has focused on the two C-terminal variants, MIER1α and β, both of which have been shown to function as transcriptional repressors. Our previous work revealed a dramatic shift in MIER1α subcellular localization from nuclear in normal breast tissue to cytoplasmic in invasive breast carcinoma, suggesting that loss of nuclear MIER1α may play a role in breast cancer development. In the present study, we investigated whether alternative splicing to include a cassette exon and produce an N–terminal variant of MIER1α affects its subcellular localization in MCF7 breast carcinoma cells. We demonstrate that this cassette exon, exon 3A, encodes a consensus leucine-rich nuclear export signal (NES). Inclusion of this exon in MIER1α to produce the MIER1-3Aα isoform altered its subcellular distribution in MCF7 cells from 81% nuclear to 2% nuclear and this change in localization was abrogated by mutation of critical leucines within the NES. Treatment with leptomycin B (LMB), an inhibitor of the nuclear export receptor CRM1, resulted in a significant increase in the percentage of cells with nuclear MIER1-3Aα, from 4% to 53%, demonstrating that cytoplasmic localization of this isoform was due to CRM1-dependent nuclear export. Inclusion of exon 3A in MIER1β to produce the N-terminal variant MIER1-3Aβ however had little effect on the nuclear targeting of this isoform. Our results demonstrate that alternative splicing to include exon 3A specifically affects the localization pattern of the α isoform.
TRES NUEVAS MONOCOTILEDONEAS DESCUBIERTAS EN CHILE: ALSTROEMERIA MOLLENSIS M. MU?OZ ET A. BRINCK (ALSTROEMERIACEAE), MIERSIA CHILENSIS VAR. BICOLOR M. MU?OZ (GILLIESIACEAE) Y CALYDOREA CHILENSIS M. MU?OZ (IRIDACEAE)
Mu?oz-Schick,Mélica;
Gayana. Botánica , 2003, DOI: 10.4067/S0717-66432003000200004
Abstract: three new species of monocots found in chile are described: alstroemeria mollensis, miersia chilensis var. bicolor and calydorea chilensis. descriptions, geographic distribution, photos and drawings are presented
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