Analyses of genetic variation suggest that pine rusts Cronartium flaccidum and Peridermium pini belong to the same species

Cronartium flaccidum and Peridermium pini are rust fungi occurring on two-needle hard pines. According to previous molecular and morphological analyses, they are very closely related despite differences in their life-cycles. In this study we showed that although a low level of genetic differentiatio...

Full description

Saved in:
Bibliographic Details
Published in:Mycological research 2002-02, Vol.106 (2), p.203-209
Main Authors: HANTULA, Jarkko, KASANEN, Risto, KAITERA, Juha, MORICCA, Salvatore
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Fungi
Phytopathology. Animal pests. Plant and forest protection
Plant cytology, morphology, systematics, chorology and evolution
Systematics. Morphology. Development cycle. Physiology
Thallophyta
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cronartium flaccidum and Peridermium pini are rust fungi occurring on two-needle hard pines. According to previous molecular and morphological analyses, they are very closely related despite differences in their life-cycles. In this study we showed that although a low level of genetic differentiation occurs among populations of both P. pini and C. flaccidum, there is no overall differentiation between the two rusts, and in this respect they resemble a single taxon. We also observed evidence for linkage disequilibrium occurring between different alleles of separate loci of Peridermium pini suggesting that its population structure would be clonal. This suggests that strains of P. pini would have originated as asexual or self-fertilizing host range mutants of C. flaccidum.
ISSN:0953-7562
1469-8102
DOI:10.1017/S0953756201005457