Macadamia domestication in Hawai‘i

Hardner, Craig

doi:10.1007/s10722-015-0328-1

Cited by 33 publications

(67 citation statements)

References 18 publications

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“…Cultivar '741' was selected from the Hawaiian seedling orchard Deschwanden and its parentage is unknown 24 . Previous genetic evidence indicates that '741' is pure M. integrifolia 25,26 .…”

Section: Methodsmentioning

confidence: 99%

Maximising recombination across macadamia populations to generate linkage maps for genome anchoring

Langdon

King

Baten

et al. 2020

Sci Rep

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the proteaceae genus Macadamia has a recent history of domestication as a commercial nut crop. We aimed to establish the first sequence-based haploid-correlated reference genetic linkage maps for this primarily outcrossing perennial tree crop, with marker density suitable for genome anchoring. Four first generation populations were used to maximise the segregation patterns available within full-sib, biparental and self-pollinated progeny. This allowed us to combine segregation data from overlapping subsets of >4,000 informative sequence-tagged markers to increase the effective coverage of the karyotype represented by the recombinant crossover events detected. All maps had 14 linkage groups, corresponding to the Macadamia haploid chromosome number, and enabled the anchoring and orientation of sequence scaffolds to construct a pseudo-chromosomal genome assembly for macadamia. Comparison of individual maps indicated a high level of congruence, with minor discrepancies satisfactorily resolved within the integrated maps. The combined set of maps significantly improved marker density and the proportion (70%) of the genome sequence assembly anchored. Overall, increasing our understanding of the genetic landscape and genome for this nut crop represents a substantial advance in macadamia genetics and genomics. The set of maps, large number of sequence-based markers and the reconstructed genome provide a toolkit to underpin future breeding that should help to extend the macadamia industry as well as provide resources for the long term conservation of natural populations in eastern Australia of this unique genus.

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“…Cultivar '741' was selected from the Hawaiian seedling orchard Deschwanden and its parentage is unknown 24 . Previous genetic evidence indicates that '741' is pure M. integrifolia 25,26 .…”

Section: Methodsmentioning

confidence: 99%

Maximising recombination across macadamia populations to generate linkage maps for genome anchoring

Langdon

King

Baten

et al. 2020

Sci Rep

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“…Five industry standard cultivars (A4, A16, H246, H344, and H660, where the prefix ''A'' indicates developed by the Hidden valley Plantation program, and ''H'' indicates selected by the University of Hawaiian program), and seven less-common and newer selections that produced high kernel per unit projected canopy area (Daddow, H781, H614, H816, H842, H849, Own Venture) were used as parents. Selection background of the parents is described in Hardner (2016). Reciprocal crosses were made; however, details are not included here, as this factor was not accounted for in the prediction of clonal effects.…”

Section: Methodsmentioning

confidence: 99%

“…Cultivars and selections developed by the University of Hawaii/Hawaiian Agricultural Research Station in Hawaii from the 1930s are a major source of germplasm for world macadamia production (Hardner, 2016;. Initially, Hawaiian candidate cultivars were selected from early commercial seedling orchards and then clonally propagated for further evaluation.…”

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confidence: 99%

Breeding New Cultivars for the Australian Macadamia Industry

Hardner¹,

Silva²,

Williams³

et al. 2019

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“…There are now over 50 macadamia varieties grown in commercial plantations worldwide (Hardner, 2016), with increasing reports of PHR. It is unclear whether there is variation in aggressiveness between isolates and species of Diaporthe associated with PHR.…”

Section: Introductionmentioning

confidence: 99%

Phomopsis husk rot of macadamia in Australia and South Africa caused by novel Diaporthe species

et al. 2020

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Macadamia domestication in Hawai‘i

Abstract: Macadamia is one of the few international food crops domesticated from the Australian flora.

Cited by 33 publications

References 18 publications

Maximising recombination across macadamia populations to generate linkage maps for genome anchoring

Maximising recombination across macadamia populations to generate linkage maps for genome anchoring

Breeding New Cultivars for the Australian Macadamia Industry

Phomopsis husk rot of macadamia in Australia and South Africa caused by novel Diaporthe species

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