Anastrepha is a species-rich genus, with a geographic distribution that covers tropical and subtropical regions of the Americas. Twenty-one species groups have been recognized in this genus, the most economically relevant ...

Orchid bees (Apidae, Euglossini) are important Neotropical pollinators. Two main features characterize these species: the tongue, which reaches at least half the body length, enabling the search for food resources in ...

Astyanax fasciatus is characterized as a cytogenetically diverse species. Sympatric and syntopic occurrence of distinct cytotypes corroborates the hypothesis that A. fasciatus might represent a species complex sharing a ...

Fish are animals present in a wide variety of habitats and are distributed all over the world. The diversity of forms, behaviors and niches associated with the evolutionary characteristics of these animals make them important ...

Pimelodidae comprises 114 valid species, whith few of them are cytogenetically characterized, mainly, especially with respect to molecular cytogenetics. In addition, the species taxonomic delimitation is still very imprecise ...

The order Osteoglossiformes represent one of the most basal groups among the Teleosteos. These fishes live exclusively on freshwater environments and are characterized by the presence of a bonytongue. The group is a good ...

Fertility is directly related to oocyte developmental competence. In this context, oocyte mitochondria play a crucial role and have become an important target in assisted reproduction therapies. However, the molecular ...

Boophilus microplus tick affects cattle productivity causing economic losses in the order of billions of dollars annually. It is know that tick saliva exert immunomodulatory effects, an evolutionary adaptation to the ...

The analysis of demographic and genetic data is recommended for the success of conservation programs. The integration of this information to generate guidelines for establishing self-sustaining populations and retain the ...

The Salminus genus is characterized by predatory fish medium to large, migratory and ichthyophagi, very appreciated in fisheries and gastronomy. Among these stands out the Salminus hilarii species, popularly known as ...