miR1444s are functionally significant miRNAs targeting polyphenol oxidase (PPO) genes for cleavage. MIR1444 genes were reported only in Populus trichocarpa. Through the computational analysis of 215 RNA-seq data, four whole genome sequences of Salicaceae species and deep sequencing of six P. trichocarpa small RNA libraries, we investigated the origin and evolution history of MIR1444s. A total o...

Tan spot, caused by Pyrenophora tritici-repentis, is an economically important foliar disease of wheat worldwide. Eight races of the pathogen have been characterized on the basis of their ability to cause necrosis or chlorosis in a set of differential wheat lines. Race 1 produces two host-selective toxins, Ptr ToxA and Ptr ToxC, that induce necrosis and chlorosis, respectively, on leaves of sen...

recently, tan spot disease of wheat caused by pyrenophora tritici-repentis(died.) drechsler has become very important disease in northern parts of iran and causes severe yield loss. although the anamorph of the fungus has been reported previously on infected leaves from mazandaran province (forotan et al., 1995), but there is no report on mass production of conidia in laboratory and the teleomo...

Abstract Pyrenophora tritici-repentis ( Ptr ), family Pleosporaceae, is a common wheat pathogen in all wheat-growing regions around the globe. It widely studied North America, South and Africa, while data about fungus genetic diversity Europe still insufficient. This study aimed to describe variation of morphological traits toxin production strains collected Latvia Belarus. Twenty-one isolates ...