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Few Mendelian genes underlie the quantitative response of a forest tree, Eucalyptus globulus, to a natural fungal epidemic.
Genetics. 2008 Jan; 178(1):563-71.G

Abstract

Foliar fungal pathogens from the genus Mycosphaerella affect eucalyptus in natural forests and plantations worldwide. QTL analysis was conducted to dissect the genetic control of resistance in Eucalyptus globulus to a natural infection by Mycosphaerella leaf disease, using a clonally replicated outbred F2 family (112 genotypes) planted in a field trial. Two major QTL, with high LOD support (20.2 and 10.9) and high genomewide significance, explained a large proportion (52%) of the phenotypic variance in the severity of damage by Mycosphaerella cryptica, which may be indicative of oligogenic control. Both QTL were validated in a second F2 family and one was validated in a third F2 family. The mean values of different genotype classes at both major QTL argue for Mendelian inheritance with resistance dominant over susceptibility. There were strong correlations between the levels of Mycosphaerella damage in related genetic material planted in three widely separated locations in Tasmania. These findings together provide evidence that the genes controlling resistance to Mycosphaerella damage are stable in different genetic backgrounds and across different environments.

Authors+Show Affiliations

School of Plant Science and Cooperative Research Centre for Forestry, University of Tasmania, Hobart, Tasmania 7001, Australia. jsfreema@utas.edu.auNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18202395

Citation

Freeman, Jules S., et al. "Few Mendelian Genes Underlie the Quantitative Response of a Forest Tree, Eucalyptus Globulus, to a Natural Fungal Epidemic." Genetics, vol. 178, no. 1, 2008, pp. 563-71.
Freeman JS, Potts BM, Vaillancourt RE. Few Mendelian genes underlie the quantitative response of a forest tree, Eucalyptus globulus, to a natural fungal epidemic. Genetics. 2008;178(1):563-71.
Freeman, J. S., Potts, B. M., & Vaillancourt, R. E. (2008). Few Mendelian genes underlie the quantitative response of a forest tree, Eucalyptus globulus, to a natural fungal epidemic. Genetics, 178(1), 563-71. https://doi.org/10.1534/genetics.107.081414
Freeman JS, Potts BM, Vaillancourt RE. Few Mendelian Genes Underlie the Quantitative Response of a Forest Tree, Eucalyptus Globulus, to a Natural Fungal Epidemic. Genetics. 2008;178(1):563-71. PubMed PMID: 18202395.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Few Mendelian genes underlie the quantitative response of a forest tree, Eucalyptus globulus, to a natural fungal epidemic. AU - Freeman,Jules S, AU - Potts,Brad M, AU - Vaillancourt,René E, PY - 2008/1/19/pubmed PY - 2008/3/28/medline PY - 2008/1/19/entrez SP - 563 EP - 71 JF - Genetics JO - Genetics VL - 178 IS - 1 N2 - Foliar fungal pathogens from the genus Mycosphaerella affect eucalyptus in natural forests and plantations worldwide. QTL analysis was conducted to dissect the genetic control of resistance in Eucalyptus globulus to a natural infection by Mycosphaerella leaf disease, using a clonally replicated outbred F2 family (112 genotypes) planted in a field trial. Two major QTL, with high LOD support (20.2 and 10.9) and high genomewide significance, explained a large proportion (52%) of the phenotypic variance in the severity of damage by Mycosphaerella cryptica, which may be indicative of oligogenic control. Both QTL were validated in a second F2 family and one was validated in a third F2 family. The mean values of different genotype classes at both major QTL argue for Mendelian inheritance with resistance dominant over susceptibility. There were strong correlations between the levels of Mycosphaerella damage in related genetic material planted in three widely separated locations in Tasmania. These findings together provide evidence that the genes controlling resistance to Mycosphaerella damage are stable in different genetic backgrounds and across different environments. SN - 0016-6731 UR - https://www.unboundmedicine.com/medline/citation/18202395/Few_Mendelian_genes_underlie_the_quantitative_response_of_a_forest_tree_Eucalyptus_globulus_to_a_natural_fungal_epidemic_ L2 - http://www.genetics.org/cgi/pmidlookup?view=long&pmid=18202395 DB - PRIME DP - Unbound Medicine ER -