Characterization and proposed spontaneous deletion mechanism of AVR-Pik locus in Pyricularia oryzae

Phyo Han Thwin; Mai Funabiki; Yuki Tomita; Takehiko Yamazaki; Ayumi Abe; Teruo Sone

doi:10.1093/bbb/zbab145

Characterization and proposed spontaneous deletion mechanism of AVR-Pik locus in Pyricularia oryzae

Biosci Biotechnol Biochem. 2021 Sep 22;85(10):2217-2220. doi: 10.1093/bbb/zbab145.

Authors

Phyo Han Thwin¹, Mai Funabiki¹, Yuki Tomita¹, Takehiko Yamazaki¹, Ayumi Abe², Teruo Sone²

Affiliations

¹ Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo, Japan.
² Research Faculty of Agriculture, Hokkaido University, Kita-ku, Sapporo, Japan.

PMID: 34387309
DOI: 10.1093/bbb/zbab145

Abstract

In phytopathogenic fungi, a mutation in the avirulence gene can lead to the breakdown of resistance in the host plant. The nucleotide sequences of the AVR-Pik locus in the strain Ina168 and its spontaneous mutant Ina168m95-5 of Pyricularia oryzae were determined. An AVR-Pik spontaneous deletion mechanism of Ina168m95-5, including multiple homologous recombination events involving repetitive transposable elements, is proposed.

Keywords: AVR-Pik; homologous recombination; mutation.

MeSH terms

Ascomycota*
Disease Resistance
Magnaporthe
Oryza
Plant Diseases

Supplementary concepts

Pyricularia oryzae