Leucine Supplementation Augments Insulin Secretion in Pancreatic Islets of Malnourished Mice

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Chromosomal evolution in Gekkonidae. I. Chromosome painting between Gekko and Hemidactylus species reveals phylogenetic relationships within the group

Geckos are a large group of lizards characterized by a rich variety of species, different modes of sex determination and diverse karyotypes. In spite of many unresolved questions on lizards' phylogeny and taxonomy, the karyotypes of most geckos have been studied by conventional cytogenetic methods only. We used flow-sorted chromosome-specific painting probes of Japanese gecko (Gekko japonicus), Mediterranean house gecko (Hemidactylus turcicus) and flat-tailed house gecko (Hemidactylus platyurus) to reveal homologous regions and to study karyotype evolution in seven gecko species (Gekko gecko, G. japonicus, G. ulikovskii, G. vittatus, Hemidactylus frenatus, H. platyurus and H. turcicus). Generally, the karyotypes of geckos were found to be conserved, but we revealed some characteristic rearrangements including both fissions and fusions in Hemidactylus. The karyotype of H. platyurus contained a heteromorphic pair in all female individuals, where one of the homologues had a terminal DAPI-negative and C-positive heterochromatic block that might indicate a putative sex chromosome. Among two male individuals studied, only one carried such a polymorphism, and the second one had none, suggesting a possible ZZ/ZW sex determination in some populations of this species. We found that all Gekko species have retained the putative ancestral karyotype, whilst the fission of the largest ancestral chromosome occurred in the ancestor of modern Hemidactylus species. Three common fissions occurred in the ancestor of Mediterranean house and flat-tailed house geckos, suggesting their sister group relationships. PCR-assisted mapping on flow-sorted chromosome libraries with conserved DMRT1 gene primers in G. japonicus indicates the localization of DMRT1 gene on chromosome 6.

Corrientes de fondos privados europeos hacia América Latina: hechos y planteamientos

Incluye Bibliografía

Gasto, inversión y financiamiento para el desarrollo sostenible en Argentina

Incluye Bibliografía

Rhachidelus Brazili Boulenger, 1908 (Squamata: Serpentes: Dipsadidae): New records, range extension and distribution map in mato grosso and mato grosso do Sul states, Brazil

The present study reports new records of the Dipsadid snake Rhachidelus brazili Boulenger, 1908, from Mato Grosso and Mato Grosso do Sul states, Brazil. Our data extend the known geographical distribution ca. 713 km to the northwest and constitute the first record in the Upper Paraguay sub-basin. © 2011 Check List and Authors.

Posibilidades para el desarrollo de la industria siderúrgica en países de menor desarrollo relativo

Resúmenes de los documentos E/CN.12/843, E/CN.12/854 y E/CN.12/855 preparados para el Seminario

Molecular epidemiology and extended-spectrum β-lactamases production of klebsiella pneumoniae isolated from three dairy herds

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise morfológica e imunocitoquímica do cérebro de abelhas africanizadas Apis mellifera após exposição à doses subletais do inseticida tiametoxam

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Istmo Centroamericano: estadísticas del subsector eléctrico. Informe preliminar del segmento de la producción de electricidad (datos actualizados a 2007)

Incluye Bibliografía

ISW effect through dark energy quintessence and ΛCDM models

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

La vejez en América Latina: necesidad de un programa social

Incluye Bibliografía

Atmosfera modificada e aplicação de cloreto de cálcio em caqui Giombo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Posibilidades para la industria siderúrgica en los países de menor desarrollo relativo. III. Ecuador

Incluye Bibliografía

Efeito do aumento da concentração de dióxido de carbono do ar sobre a mancha foliar causada por cylindrocladium candelabrum em mudas de eucalyptus urophylla

Pós-graduação em Agronomia (Proteção de Plantas) - FCA