Native of the Amazon, the nanche (Byrsonima crassifolia) is a fruit cultivated by family farmers and used in cooking; as such, it represents an opportunity for regional agribusiness. The Embrapa Eastern Amazon set up an active germplasm bank (BAG) consisting of 22 accessions sampled in 11 municipalities of Pará State. Due to its economic potential, there is an interest to advance the genetic br...

Species of Botrychium reproduce by spores that form subterranean gametophytes and a few, like B. pumicola, also reproduce asexually with subterranean sporophytic gemmae. The goal of this study was to examine the genetic diversity of B. pumicola populations and to better understand the role of gemmae. Ninety-nine individuals from three monitored populations were sampled. The technique of inter-s...

To provide fruit throughout the whole year, maintain quality and reduce spoilage, apples pears are stored at low temperature. However, development of rots, caused mainly by Penicillium expansum, cannot be avoided. prevent losses, biological control has been proposed as a potential alternative. In this work, 16 psychrotrophic, non-pectinolytic Debaryomyces hansenii strains were evaluated in bioa...

1996) and amplified fragment length polymorphisms (AFLPs) (Tohme et al., 1996; Papa and Gepts, 2003). Efficient assessment of genetic diversity is important for conservaThe ISSR marker technique involves polymerase chain tion and utilization of genetic resources. We sought to assess the abilreaction (PCR) amplification of DNA using a single ity of inter simple sequence repeats (ISSRs) as molecu...

Sophora davidii (Franch.) Kom. ex Pavol is an important medicinal plant and a feeding scrub with ecological value. The effects of different gamma irradiation doses (20-140 Kr) on seed germination and seedling morphology were investigated in S. davidii, and intersimple sequence repeat (ISSR) markers were used to identify the DNA polymorphism among mutants. Significant variations were observed fo...

The Aspergillus genus belongs to a filamentous fungal group characterized by wide dispersion in the environment. Some species are associated with diseases, especially in immunocompromised patients, while others are of economical importance due to aflatoxin production or biotechnological applications. Its species identification is nowadays performed by traditional techniques combined with molecu...