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Titolo:
Genetic variability and structure of Canadian populations of Chondrostereum purpureum, a potential biophytocide
Autore:
Gosselin, L; Jobidon, R; Bernier, L;
Indirizzi:
Univ1Kaval, Fac Foresterie & Geomat, Ctr Rech Biol Forestiere, St Foy, PQ G Univ Laval St Foy PQ Canada G1K 7P4 tr Rech Biol Forestiere, St Foy, PQ G Minist Ressources Nat Quebec, St Foy, PQ G1P 3W8, Canada Minist RessourcesNat Quebec St Foy PQ Canada G1P 3W8 PQ G1P 3W8, Canada
Titolo Testata:
MOLECULAR ECOLOGY
fascicolo: 1, volume: 8, anno: 1999,
pagine: 113 - 122
SICI:
0962-1083(199901)8:1<113:GVASOC>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMPLIFIED POLYMORPHIC DNA; PHYTOPHTHORA-INFESTANS POPULATIONS; GEOGRAPHIC-VARIATION; BIOLOGICAL-CONTROL; DIVERSITY; VIRULENCE; MARKERS;
Keywords:
biological control; Chondrostereum purpureum; population structure; RAPDs;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Gosselin, L UnivtLaval, Fac Foresterie & Geomat, Ctr Rech Biol Forestiere,Cite Univ, S Univ Laval Cite Univ St Foy PQ Canada G1K 7P4 re, Cite Univ, S
Citazione:
L. Gosselin et al., "Genetic variability and structure of Canadian populations of Chondrostereum purpureum, a potential biophytocide", MOL ECOL, 8(1), 1999, pp. 113-122

Abstract

Genetic diversity was studied in four Canadian ecological populations, each corresponding to a Canadian ecozone, of Chondrostereum purpureum, including 93 isolates of various host origin. Pseudo-allelic frequencies were estimated at each of 22 putative RAPD loci by scoring for presence or absence of amplicons in haploid mycelial cultures. The analysis of the hierarchical population structure did not reveal any trend with regard to ecological or host origin. Total gene diversity (H(T)dagger = 0.288) was mostly attributable to diversity within populations (H(S)dagger = 0.269). In addition, the AMOVA analysis detected most of the molecular variability within subpopulations (89.3%; P < 0.001), whereas a significant (7.3%; P = 0.001) proportionof the gene diversity was found among subpopulations, within ecozones. Theresults indicate that C. purpureum is a highly heterogeneous pathogen witha continuously distributed population across Canada (G(ST)dagger = 0.048),and underscore the importance of considering the population structure in the process of its registration as a microbial control agent. A genotype isolated in either central or eastern Canada (ecozones 2, 4 and 5 populations)and selected for its potential as a biophytocide should be considered indigenous in any of these regions of intended use.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:31:08