Isoenzyme polymorphism and segregation in isolates of Phytophthora infestans from Japan
A Mosa; K Kobayashi; A Ogoshi; M Kato; N Sato;
Abstract
Isoenzyme variation of 198 isolates of Phytophthora infestans collected from many locations in Japan during 1987–90, and of four pre-1987 isolates, was examined using starch gel electrophoresis. A previously unreported allele at malic isoenzyme locus/ME (90) was observed. An association between mating types and isoenzyme genotypes at three isoenzyme loci, glucosephosphate isomerase (GPI-1), peptidase (PEP-1) and ME, was found. At PEP-1, the A2 isolates from Japan had a previously unreported genotype (96/96). Normal segregation at the malic isoenzyme locus occurred in a cross of Japanese and Mexican parents. The results provide evidence of a change in the population genetic structure of P. infestans in Japan.
Other data
Title | Isoenzyme polymorphism and segregation in isolates of Phytophthora infestans from Japan | Authors | A Mosa ; K Kobayashi; A Ogoshi; M Kato; N Sato | Keywords | Isoenzyme polymorphism;Phytophthora infestans;Japan | Issue Date | Feb-1993 | Publisher | Blackwell Publishing Ltd | Source | Cited by (CrossRef): 24 articles Check for updates Citation tools | Journal | Plant Pathology | Volume | 42 | Issue | 1 | Start page | 26 | End page | 34 | DOI | 10.1111/j.1365-3059.1993.tb01468.x |
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