Show simple item record

dc.contributor.authorSpencer, Beren
dc.contributor.authorMazanec, Richard
dc.contributor.authorAbadi, Amir
dc.contributor.authorGibberd, Mark
dc.contributor.authorZerihun, Ayalsew
dc.date.accessioned2020-09-17T14:14:33Z
dc.date.available2020-09-17T14:14:33Z
dc.date.issued2020
dc.identifier.citationSpencer, B. and Mazanec, R. and Abadi, A. and Gibberd, M. and Zerihun, A. 2020. Flowering phenology in a Eucalyptus loxophleba seed orchard, heritability and genetic correlation with biomass production and cineole: breeding strategy implications. Scientific Reports. 10: Article No. 15303.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/81077
dc.identifier.doi10.1038/s41598-020-72346-3
dc.description.abstract

Reproductive synchronicity within a seed orchard facilitates gene exchange and reduces self-fertilisation. Here we assessed key flowering traits, biomass and foliar 1,8-cineole concentrations of Eucalyptus loxophleba (subsp. lissophloia and gratiae) in an open-pollinated seed orchard. Monthly flowering observations were made on 1142 trees from 60 families and nine provenances across 2 years. The percentage of trees flowering in both years was similar at 87%. There were differences between provenances and families within provenances for flowering traits, biomass and 1,8-cineole and interactions between provenances and year for flowering traits. Heritability of start and end flowering, and 1,8-cineole were high to moderate (h^2 = 0.75–0.45) and duration of flowering, propensity to flower and biomass estimates were moderate to low (h^2 = 0.31–0.10). Genetic and phenotypic correlations between flowering traits were high (rg = 0.96–0.63 and rp = 0.93–0.34) except between duration and end of flowering. The correlations were weaker between flowering traits and biomass or 1,8-cineole. ‘Dual flowering’, when trees underwent two reproductive cycles in a year, was responsible for out-of-phase flowering and those with low biomass and 1,8-cineole concentration should be removed from the breeding programme to hasten selection for desirable traits.

dc.publisherNature Publishing Group
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleFlowering phenology in a Eucalyptus loxophleba seed orchard, heritability and genetic correlation with biomass production and cineole: breeding strategy implications
dc.typeJournal Article
dcterms.source.volume10
dcterms.source.issn2045-2322
dcterms.source.titleScientific Reports
dc.date.updated2020-09-17T14:14:23Z
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidZerihun, Ayalsew [0000-0002-6021-9624]
curtin.contributor.orcidZerihun, Ayalsew [0000-0002-6021-9624]
curtin.identifier.article-number15303 (2020
curtin.contributor.scopusauthoridZerihun, Ayalsew [6602180048]
curtin.contributor.scopusauthoridZerihun, Ayalsew [6602180048]


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

https://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/