Random Amplified Polymorphic DNA-Based Analysis of Genetic Diversity and Characterization of Representative Bipolaris oryzae Isolates from 2023-2024.

ABSTRACT: Rice brown spot, caused by Bipolaris oryzae, typically occurs during the rice harvest season and can cause substantial yield losses. In 2023-2024, this disease emerged in rice cultivation areas of Korea. However, the population structure and genetic diversity of B. oryzae isolates remain unclear. Such information is necessary to effectively target and control rice brown spot. Thus, this study aimed to investigate the population structure of 50 B. oryzae isolates collected from the leaves, neck, and panicles of rice infected with brown spot through random amplified polymorphic DNA analysis. Among 140 primers tested, 30 were selected and applied, of which 5 exhibited significant polymorphisms among the isolates. The generated dendrogram revealed five clades with 92% similarity. Group A was t

SUBMITTER: Kim S 

PROVIDER: S-EPMC12488372 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature