POLYPLOIDY AMONG ISOLATES OF PHYTOPHTHORA-INFESTANS FROM EASTERN GERMANY

被引：9
|
作者：
DAGGETT, SS
KNIGHTON, JE
THERRIEN, CD
机构：
[1] PENN STATE UNIV,DEPT BIOL,UNIVERSITY PK,PA 16802
[2] PENN STATE UNIV,DEPT PLANT PATHOL,UNIVERSITY PK,PA 16802
[3] N CAROLINA WESLEYAN COLL,DIV MATH & NAT SCI,ROCKY MOUNT,NC 27804
来源：
JOURNAL OF PHYTOPATHOLOGY-PHYTOPATHOLOGISCHE ZEITSCHRIFT | 1995年 / 143卷 / 07期
关键词：
D O I：
10.1111/j.1439-0434.1995.tb00286.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The ploidy of 101 isolates of Phytophthora a infestans from the eastern slates of the Federal Republic of Germany (formerly the German Democratic Republic) was determined by Feulgen DNA microdensitometry. The isolates used in this investigation were collected during ii growing seasons between 1976 and 1990. Fifty hyphal nuclei per isolate were used for DNA measurements. Polyploids predominated throughout the 15-year sampling period. Four of the isolates collected during 1989 were diploid. Based on the results of this investigation, there appears to have been no trend towards a diploid, sexual population during the sampling period.
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页码：419 / 422
页数：4
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