dc.contributor.author |
Duong, Hoa Thanh
|
|
dc.contributor.author |
Mazanec, Richard
|
|
dc.contributor.author |
McComb, Jennifer A.
|
|
dc.contributor.author |
Burgess, Treena I.
|
|
dc.contributor.author |
Hardy, Giles E. St. J.
|
|
dc.date.accessioned |
2023-03-09T05:38:36Z |
|
dc.date.available |
2023-03-09T05:38:36Z |
|
dc.date.issued |
2022-01-31 |
|
dc.description.abstract |
Quambalaria shoot blight (QSB) has emerged recently as a severe disease of Corymbia calophylla (marri). In this study, QSB
damage and growth were assessed in Corymbia calophylla trees at 4 and 6 years of age in two common gardens consisting
of 165 and 170 open-pollinated families representing 18 provenances across the species’ natural distribution. There were
significant differences between provenances for all traits. The narrow-sense heritability for growth traits and QSB damage at
both sites were low to moderate. The genetic correlation between QSB damage and growth traits was negative; fast-growing
families were less damaged by QSB disease. Age-age genetic correlations for individual traits at four and six years were very
strong, and the type-B (site–site) correlations were strongly positive for all traits. Provenances from cooler wetter regions
showed higher resistance to QSB. The QSB incidence at 6 years was significantly correlated with environmental factors of
the provenance’s origin. The QSB incidence at years four and six was not correlated with the QSB expression in 3-month-old
seedlings. Based on these results, selection for resistance could be undertaken using 4-year-old trees. There is potential for
a resistance breeding program to develop populations of marri genetically diverse and resistant to QSB. |
en_US |
dc.description.department |
Forestry and Agricultural Biotechnology Institute (FABI) |
en_US |
dc.description.department |
Biochemistry |
|
dc.description.department |
Genetics |
|
dc.description.department |
Microbiology and Plant Pathology |
|
dc.description.librarian |
am2023 |
en_US |
dc.description.sponsorship |
Open Access funding by CAUL and its Member Institutions. PhD scholarship between the Vietnamese Government and Murdoch University as well as the Australian Research Council Linkage Program. |
en_US |
dc.description.uri |
https://link.springer.com/journal/11295 |
en_US |
dc.identifier.citation |
Duong, H.T., Mazanec, R., McComb, J.A. et al. Quambalaria shoot blight resistance in marri (Corymbia calophylla): genetic parameters and correlations between growth rate and blight resistance. Tree Genetics & Genomes 18, 8 (2022). https://doi.org/10.1007/s11295-022-01540-3. |
en_US |
dc.identifier.issn |
1614-2942 (print) |
|
dc.identifier.issn |
1614-2950 (online) |
|
dc.identifier.other |
10.1007/s11295-022-01540-3 |
|
dc.identifier.uri |
https://repository.up.ac.za/handle/2263/90038 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Springer |
en_US |
dc.rights |
© The Author(s) 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License. |
en_US |
dc.subject |
Breeding for disease resistance |
en_US |
dc.subject |
Genetic variation |
en_US |
dc.subject |
Heritability |
en_US |
dc.subject |
Genetic correlation |
en_US |
dc.subject |
Quambalaria pitereka |
en_US |
dc.subject |
Quambalaria shoot blight (QSB) |
en_US |
dc.title |
Quambalaria shoot blight resistance in marri (Corymbia calophylla) : genetic parameters and correlations between growth rate and blight resistance |
en_US |
dc.type |
Article |
en_US |