A Shift in Pathotype Diversity and Complexity of in Brazil.

Soybean root and stem rot caused by the oomycete is a destructive disease worldwide that can affect plants at any growth stage. The use of resistant cultivars is the most effective method of controlling the disease. Therefore, monitoring changes in the population of regarding the dynamics of avirulence genes capable of overcoming resistance genes () is important to reduce yield losses and to enhance the effectiveness of the genes.

Phylogenetic placement of the genus Anhellia and the description of A. nectandrae sp. nov.

The phylogenetic position of a new species of Anhellia (Myriangiales) was investigated by analysis of nucleotide sequences of ribosomal large subunit (LSU) and ITS regions. The new sequence was aligned with 28 sequences obtained from GenBank, including four species of Davidiellaceae (Capnodiales) used as outgroup. This study is the first attempt to resolve the placement of the genus Anhellia within Myriangiales.