THE IDENTIFICATION AND FITNESS OF VIRULENT POTATO CYST-NEMATODE POPULATIONS (GLOBODERA-PALLIDA) SELECTED ON RESISTANT SOLANUM-VERNEI HYBRIDS FOR UP TO 11 GENERATIONS

被引：45
|
作者：
TURNER, SJ [1 ]
机构：
[1] QUEENS UNIV BELFAST,DEPT AGR ZOOL,NEWTOWNABBEY BT36 7ED,ANTRIM,NORTH IRELAND
来源：
ANNALS OF APPLIED BIOLOGY | 1990年 / 117卷 / 02期
关键词：
environmental and genotypic fitness; Globodera pallida; identification; isoelectric focusing; potato cyst‐nematodes; Potatoes; resistance; Solanum vernei; virulence;
D O I：
10.1111/j.1744-7348.1990.tb04225.x
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Selection of Globodera pallida populations on resistant Solanum vernei‐hybrids resulted in distinct virulent strains after eleven generations. Some of these virulent populations were assessed on their environmental fitness under field‐type conditions. All reproduced less well in unsterilised soil, but virulent populations were less affected by environmental variation than their avirulent counterparts. Evaluation of their reproductive ability could not equate virulence to overall enhanced or reduced genotypic fitness compared with their avirulent counterparts. These populations were shown to be genetically distinct from their unselected counterparts using isoelectric focusing and specific enzyme staining. The control and management of virulent G. pallida populations is discussed. Copyright © 1990, Wiley Blackwell. All rights reserved
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页码：385 / 397
页数：13
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