ISOENZYME POLYMORPHISM AND SEGREGATION IN ISOLATES OF PHYTOPHTHORA-INFESTANS FROM JAPAN

被引：33

作者：

MOSA, AA

KOBAYASHI, K

OGOSHI, A

KATO, M

SATO, N

机构：

[1] HOKKAIDO UNIV,FAC AGR,PLANT PATHOL LAB,SAPPORO,HOKKAIDO 060,JAPAN

[2] HOKKAIDO NATL AGR EXPT STN,TOYOHIRA KU,SAPPORO 062,JAPAN

来源：

PLANT PATHOLOGY | 1993年 / 42卷 / 01期

关键词：

D O I：

10.1111/j.1365-3059.1993.tb01468.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

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.

引用

页码：26 / 34

页数：9

共 40 条

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