ANALYSIS OF VARIATION WITHIN MICRODOCHIUM-NIVALE FROM WHEAT - EVIDENCE FOR A DISTINCT SUBGROUP

被引:39
作者
LEES, AK [1 ]
NICHOLSON, P [1 ]
REZANOOR, HN [1 ]
PARRY, DW [1 ]
机构
[1] JOHN INNES CTR PLANT SCI RES,CAMBRIDGE LAB,NORWICH NR4 7UJ,NORFOLK,ENGLAND
来源
MYCOLOGICAL RESEARCH | 1995年 / 99卷
关键词
D O I
10.1016/S0953-7562(09)80322-5
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Random amplified polymorphic DNA (RAPD) assay revealed polymorphisms among isolates of Microdochium nivale from wheat which indicated the presence of a distinct sub-group. Average conidial length and average number of septa were distributed continuously among the isolates and did not correlate with the groupings indicated by RAPDs. However, conidial width fell into two broad groups which correlated closely with the groups revealed by RAPD analysis. The sub-group identified by RAPDs showed a correlation with M. nivale var. majus as distinguished by conidial morphology, and the remaining isolates largely corresponded to M. nivale var. nivale. The perithecial state of M. nivale occurred in vitro, indicating that the majority of isolates were homothallic, but not all isolates produced perithecia.
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收藏
页码:103 / 109
页数:7
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