Plant-based research among the International Cooperative Biodiversity Groups

Rosenthal, Joshua J. C.; Katz, Flora

doi:10.1080/13880200903015042

Cited by 2 publications

(1 citation statement)

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“…The chemical complexity and functional diversity of these natural secondary metabolites has not been fully explored and continues to provide a significant resource for the potential discovery of new pharmaceuticals. As a consequence, the conservation of biodiversity for the discovery of novel natural compounds has significant social and economic value [ 2 , 18 , 50 ].…”

Section: Introductionmentioning

confidence: 99%

Population genetic analysis of a medicinally significant Australian rainforest tree, Fontainea picrosperma C.T. White (Euphorbiaceae): biogeographic patterns and implications for species domestication and plantation establishment

Lamont

Conroy

Reddell³

et al. 2016

BMC Plant Biol

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BackgroundFontainea picrosperma, a subcanopy tree endemic to the rainforests of northeastern Australia, is of medicinal significance following the discovery of the novel anti-cancer natural product, EBC-46. Laboratory synthesis of EBC-46 is unlikely to be commercially feasible and consequently production of the molecule is via isolation from F. picrosperma grown in plantations.Successful domestication and plantation production requires an intimate knowledge of a taxon’s life-history attributes and genetic architecture, not only to ensure the maximum capture of genetic diversity from wild source populations, but also to minimise the risk of a detrimental loss in genetic diversity via founder effects during subsequent breeding programs designed to enhance commercially significant agronomic traits.ResultsHere we report the use of eleven microsatellite loci (PIC = 0.429; PID = 1.72 × 10−6) to investigate the partitioning of genetic diversity within and among seven natural populations of F. picrosperma. Genetic variation among individuals and within populations was found to be relatively low (A = 2.831; HE = 0.407), although there was marked differentiation among populations (PhiPT = 0.248). Bayesian, UPGMA and principal coordinates analyses detected three main genotypic clusters (K = 3), which were present at all seven populations. Despite low levels of historical gene flow (Nm = 1.382), inbreeding was negligible (F = -0.003); presumably due to the taxon’s dioecious breeding system.ConclusionThe data suggests that F. picrosperma was previously more continuously distributed, but that rainforest contraction and expansion in response to glacial-interglacial cycles, together with significant anthropogenic effects have resulted in significant fragmentation. This research provides important tools to support plantation establishment, selection and genetic improvement of this medicinally significant Australian rainforest species.Electronic supplementary materialThe online version of this article (doi:10.1186/s12870-016-0743-2) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%