NDLI: Genetic variation of Pleiochaeta setosa from Lupinus albus

Content Provider	Springer Nature Link
Author	Gan, Melissa J. T. Ash, Gavin J. Cowley, Raymond B. Savocchia, Sandra Luckett, David J.
Copyright Year	2009
Abstract	A hierarchical collection of isolates of the fungal pathogen Pleiochaeta setosa was made from field-grown Lupinus albus plants across southern NSW, Australia in 2004. This collection, along with some historical reference isolates, was analysed for genetic variation using random amplified polymorphic DNA and enterobacterial repetitive intergenic consensus primer PCR. Anchored inter-simple sequence repeat primers were tested but produced little or no amplification or no detectable polymorphism. The observed overall variation was not explained by the hierarchical structure of the population (individual seedling, host species, host cultivar, regional location, or year). There was significant genetic variation between isolates even at the finest sampling scale (within a single seedling). Some very distinct individual isolates were identified. The high level of scale-independent genetic diversity seen in P. setosa suggests that field-based screening for Pleiochaeta root rotresistant genotypes in a L. albus breeding program at a single location is likely to result in resistance which is effective at multiple and widely separated locations. This resistance would have an increased chance of being polygenically controlled and durable under commercial cultivation conditions.
Starting Page	518
Ending Page	524
Page Count	7
File Format	PDF
ISSN	08153191
Journal	Australasian Plant Pathology
Volume Number	38
Issue Number	5
e-ISSN	14486032
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-01-01
Publisher Institution	Australasian Plant Pathology Society
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Pathology Plant Sciences Agriculture Entomology Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science

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Variation in morphology and pathogenicity of Pleiochaeta setosa isolates from Lupinus spp. and other legumes

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