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05 - QTLs and the genes linked to growth rate differences in Fusarium circinatum, the pine pitch canker pathogen

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XXV IUFRO WORLD CONGRESS

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Abstract

More than a 100 genome sequences are now available for Fusarium spp. and in some cases numerous isolates of a single species have been sequenced. Understanding the functions of the proteins coded by these genome sequences, especially in non-model species, is becoming an increasingly important aspect of disease management and this will clearly be more so in the future. Using a combination of whole genome sequences and a genetic linkage map for a hybrid cross between Fusarium circinatum and F. temperatum, we have identified some key genes involved in growth rate differences in these two species. Genome sequence data were used to map two Quantitative trait loci (QTLs) for growth in culture. One QTL allowed for the identification of a five gene indel specific to F. circinatum. The second QTL involves an indel of two genes only in some F. circinatum isolates. Further investigations of these QTLs will enable a better understanding of fungal growth in F. circinatum and potentially, also regarding the basis of pathogenicity in F. circinatum and F. temperatum.

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© Copyright 2020 Morressier GmbH.
All rights reserved.