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Title: Genetic relationships among strains of the Aspergillus niger aggregate
Type: Journal articleJournal article
Participant(s):
Forfatter:  Ferracin, L.M.
Technical University of Denmark

Author:  Frisvad, Jens Christian (Cwisno: 612)
Technical University of Denmark
Email:

Forfatter:  Taniwaki, M.H.
Technical University of Denmark

Forfatter:  Iamanaka, B.T.
Technical University of Denmark

Forfatter:  Sartori, D.
Technical University of Denmark

Forfatter:  Schaoavaloff, M.E.
Technical University of Denmark

Forfatter:  Fungaro, M.H.P.
Universidad Estadual Londrina, Ctr. Ciencias Biol.
Abstract: We analyzed the genetic relationships between 51 fungal isolates previously identified as A. niger aggregate, obtained from dried fruit samples from worldwide origin and 7 A. tubingensis obtained from Brazilian coffee beans samples. Greater fungal diversity was found in black sultanas. Aspergillus niger sensu stricto was the most prevalent species. It was found in all fruit substrates of all geographical origins. Based on Random Amplification of Polymorphic DNA (RAPD) and beta-tubulin sequences data two groups of A. niger were found. In spite of the small number of isolates from Group IV an association between extrolite patterns and molecular clustering is speculated. A. tubingensis were the second most frequent species and this species were clearly subdivided into two groups. The finding of two groups for A. tubingensis strains could not yet explain the contradictions found in the literature about the capability this species for ochratoxin production, because both of them were formed by only non-ochratoxin-producing strains.
Published: in journal: Brazilian Archives of Biology and Technology (ISSN: 1516-8913), vol: 52, pages: 241-248, 2009
See the publication in DTU Orbit See the publication in DTU Orbit

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